{"id":28411,"date":"2025-12-11T08:59:03","date_gmt":"2025-12-11T00:59:03","guid":{"rendered":"https:\/\/aif.amtbbs.org\/?p=28411"},"modified":"2025-12-11T08:59:03","modified_gmt":"2025-12-11T00:59:03","slug":"%e8%ae%a9-ai-%e6%99%ba%e8%83%bd%e4%bd%93%e6%8b%a5%e6%9c%89%e5%83%8f%e4%ba%ba%e7%b1%bb%e7%9a%84%e6%8c%81%e4%b9%85%e8%ae%b0%e5%bf%86%ef%bc%9a%e5%9f%ba%e4%ba%8e-langgraph-%e7%9a%84%e9%95%bf%e7%9f%ad","status":"publish","type":"post","link":"https:\/\/aif.amtbbs.org\/index.php\/2025\/12\/11\/28411\/","title":{"rendered":"\u8ba9 AI \u667a\u80fd\u4f53\u62e5\u6709\u50cf\u4eba\u7c7b\u7684\u6301\u4e45\u8bb0\u5fc6\uff1a\u57fa\u4e8e LangGraph \u7684\u957f\u77ed\u671f\u8bb0\u5fc6\u7ba1\u7406\u5b9e\u8df5\u6307\u5357"},"content":{"rendered":"<div class=\"article-desc\">\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8Agent Memory\u7684\u6838\u5fc3\u6982\u5ff5\uff0c\u5e76\u805a\u7126\u4e8eLangGraph\u6846\u67b6\u4e0b\u7684\u957f\u77ed\u671f\u8bb0\u5fc6\u5b9e\u73b0\uff0c\u8be6\u89e3\u77ed\u671f\u4f1a\u8bdd\u4e0e\u957f\u671f\u77e5\u8bc6\u7684\u5b58\u50a8\u3001\u7ba1\u7406\u3001\u8bed\u4e49\u68c0\u7d22\u7b49\u6280\u5de7\u3002<\/div>\n<div id=\"postspictures\" class=\"article-content\">\n<div id=\"container\" class=\"container am-engine\" data-v-01a18e2f=\"\" data-element=\"root\">\n<p>&nbsp;<\/p>\n<p>\u5982\u4f55\u8ba9AI\u667a\u80fd\u4f53\uff08Agent\uff09\u50cf\u4eba\u7c7b\u4e00\u6837\u62e5\u6709\u6301\u4e45\u7684\u8bb0\u5fc6\uff0c\u4ece\u800c\u5728\u590d\u6742\u7684\u8fde\u7eed\u4efb\u52a1\u4e2d\u4fdd\u6301\u4e0a\u4e0b\u6587\u611f\u77e5\u548c\u6df1\u5ea6\u7406\u89e3\uff1f\u8fd9\u5df2\u6210\u4e3a\u6784\u5efa\u9ad8\u7ea7\u667a\u80fd\u4f53\u7684\u6838\u5fc3\u6311\u6218\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8Agent Memory\u7684\u6838\u5fc3\u6982\u5ff5\uff0c\u5e76\u805a\u7126\u4e8eLangGraph\u6846\u67b6\u4e0b\u7684\u957f\u77ed\u671f\u8bb0\u5fc6\u5b9e\u73b0\uff0c\u8be6\u89e3\u77ed\u671f\u4f1a\u8bdd\u4e0e\u957f\u671f\u77e5\u8bc6\u7684\u5b58\u50a8\u3001\u7ba1\u7406\u3001\u8bed\u4e49\u68c0\u7d22\u7b49\u6280\u5de7\u3002\u66f4\u8fdb\u4e00\u6b65\u5730\uff0c\u6211\u4eec\u5c06\u901a\u8fc7\u4e00\u4e2a\u5f15\u5165MCP\u534f\u8bae\u7684\u5b9e\u6218\u6848\u4f8b\uff0c\u624b\u628a\u624b\u5e26\u4f60\u6784\u5efa\u4e00\u4e2a\u771f\u5b9e\u7684\u878d\u5408\u957f\u8bb0\u5fc6\u673a\u5236\u7684Multi-Agent\u7cfb\u7edf\uff0c\u76f4\u89c2\u5c55\u793a\u4e2d\u65ad\u3001\u8bb0\u5fc6\u4e0e\u534f\u4f5c\u7684\u878d\u5408\u3002<\/p>\n<p><img data-dominant-color=\"085894\" data-has-transparency=\"false\" style=\"--dominant-color: #085894;\" loading=\"lazy\" decoding=\"async\" class=\"not-transparent alignnone size-full wp-image-28412\" src=\"https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/12\/04c7f81113b7ead101e376bbab3ab5f1146943.jpg\" width=\"1248\" height=\"696\" srcset=\"https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/12\/04c7f81113b7ead101e376bbab3ab5f1146943.jpg 1248w, https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/12\/04c7f81113b7ead101e376bbab3ab5f1146943-300x167.jpg 300w, https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/12\/04c7f81113b7ead101e376bbab3ab5f1146943-1024x571.jpg 1024w, https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/12\/04c7f81113b7ead101e376bbab3ab5f1146943-150x84.jpg 150w, https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/12\/04c7f81113b7ead101e376bbab3ab5f1146943-768x428.jpg 768w\" sizes=\"auto, (max-width: 1248px) 100vw, 1248px\" \/><\/p>\n<h3>\u57fa\u4e8e\u5927\u8bed\u8a00\u6a21\u578b\uff08LLM\uff09\u7684\u667a\u80fd\u4f53\uff08Agent\uff09\u7cfb\u7edf\u4e2d\uff0c\u8bb0\u5fc6\u673a\u5236\u662f\u5b9e\u73b0\u6301\u7eed\u3001\u8fde\u8d2f\u548c\u4e2a\u6027\u5316\u4ea4\u4e92\u7684\u6838\u5fc3\u57fa\u77f3\uff0c\u901a\u8fc7\u8bb0\u5fc6\uff0c\u53ef\u4ee5\u8ba9Agent\u8bb0\u4f4f\u8fc7\u5f80\u7684\u4ea4\u4e92\uff0c\u4fdd\u6301\u4e0a\u4e0b\u6587\u7684\u4e00\u81f4\u6027\uff0c\u5e76\u80fd\u4ece\u53cd\u9988\u4e2d\u5b66\u4e60\uff0c\u9002\u5e94\u7528\u6237\u7684\u504f\u597d\u3002<\/h3>\n<p>\u672c\u6587\u6838\u5fc3\u8981\u70b9\u6982\u8ff0\uff1a<\/p>\n<ul data-id=\"u738a58b-RLPAK3T3\">\n<li data-id=\"ld70c578-MG8IDKsT\">\u4ecb\u7ecdAgent Memory\u7684\u57fa\u672c\u60c5\u51b5<\/li>\n<li data-id=\"ld70c578-nGPgZBw1\">LangGraph\u957f\u77ed\u671f\u8bb0\u5fc6\u8be6\u89e3\u53ca\u6848\u4f8b\u8bf4\u660e\uff1a\u5305\u542b\u77ed\u671f\u8bb0\u5fc6\u5b9e\u73b0\u3001\u7ba1\u7406\u65b9\u6cd5\uff0c\u957f\u671f\u8bb0\u5fc6\u7684\u5b9e\u73b0\u65b9\u6cd5\uff0c\u4ee5\u53ca\u642d\u5efa\u4e86\u878d\u5408postgres\u6570\u636e\u5e93\u3001\u96c6\u6210Embedding\u670d\u52a1\u8fdb\u884c\u8bed\u4e49\u641c\u7d22\u7b49\u53ef\u7528\u4e8e\u751f\u4ea7\u73af\u5883\u7684\u771f\u5b9e\u6848\u4f8b\u3002<\/li>\n<li data-id=\"ld70c578-8mcb6xE1\">\u5f15\u5165MCP\u534f\u8bae\u6784\u5efa\u771f\u5b9e\u7684Agent\u957f\u8bb0\u5fc6\u5e94\u7528\uff1a\u642d\u5efa\u4e00\u4e2a\u57fa\u4e8esupervisor\u67b6\u6784\uff0c\u96c6\u6210\u4e2d\u65ad\u673a\u5236\u3001\u957f\u77ed\u671f\u8bb0\u5fc6\u673a\u5236\u7684multi-agent\u7cfb\u7edf\u3002<\/li>\n<\/ul>\n<h3>\u4e00\u3001\u8bb0\u5fc6\u673a\u5236\u4ecb\u7ecd<\/h3>\n<h4>1. Agent Memory\u662f\u4ec0\u4e48\uff1f<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/s2.51cto.com\/oss\/202512\/10\/c952f779941757b906360494b484c8ee776ece.webp\" data-type=\"block\" \/><\/p>\n<p>\u4e0a\u56fe\u4e2d\uff08\u6765\u6e90\u4e8eMem0[1]\uff09\uff0c\u5de6\u8fb9\u662f\u6ca1\u6709Memory\u7684agent\uff0c\u53f3\u8fb9\u662f\u6709Memory\u7684agent\uff0c\u540e\u8005\u53ef\u4ee5\u6839\u636e\u7528\u6237\u7684\u8fc7\u5f80\u4fe1\u606f\uff08\u7d20\u98df\u4e3b\u4e49\u8005\u3001\u4e0d\u559c\u6b22\u4e73\u5236\u54c1\uff09\u7ed9\u51fa\u66f4\u5408\u7406\u7684\u54cd\u5e94\uff08\u4e0d\u542b\u4e73\u5236\u54c1\u7684\u7d20\u98df\u83dc\u5355\uff09\uff0c\u800c\u524d\u8005\u7684\u56de\u7b54\u663e\u7136\u662f\u4e0d\u5408\u9002\u7684\u3002<\/p>\n<p>\u7b80\u5355\u6765\u8bf4\uff0cMemory\u662f\u8d4b\u4e88Agent\u8bb0\u5fc6\u80fd\u529b\u7684\u6280\u672f\u548c\u67b6\u6784\uff0c\u80fd\u591f\u8ba9Agent\u50cf\u4eba\u4e00\u6837\u8bb0\u4f4f\u8fc7\u53bb\u7684\u4ea4\u4e92\u3001\u5b66\u5230\u7684\u77e5\u8bc6\u3001\u6267\u884c\u8fc7\u7684\u4efb\u52a1\u53ca\u672a\u6765\u7684\u8ba1\u5212\uff0c\u662f\u5c06\u4e00\u4e2aLLM\u8f6c\u53d8\u4e3a\u80fd\u591f\u6267\u884c\u590d\u6742\u3001\u957f\u671f\u4efb\u52a1\u7684\u771f\u6b63\u201d\u667a\u80fd\u4f53\u201c\u7684\u6838\u5fc3\u6240\u5728\u3002<\/p>\n<h4>2. \u5173\u4e8eAgent Memory\u6211\u4eec\u9700\u8981\u8003\u8651\u4ec0\u4e48\uff1f<\/h4>\n<ul data-id=\"u738a58b-LW14HJX9\">\n<li data-id=\"ld70c578-DDPCLs5h\">\u5982\u4f55\u83b7\u53d6\u8bb0\u5fc6\uff1a\u901a\u8fc7\u548c\u7528\u6237\u4ea4\u4e92\u3001\u73af\u5883\u4ea4\u4e92&#8230;<\/li>\n<li data-id=\"ld70c578-cyke1MQ7\">\u600e\u4e48\u7ec4\u7ec7\u8bb0\u5fc6\uff1a\u6a21\u578b\u53c2\u6570\u3001\u6a21\u578b\u4e0a\u4e0b\u6587\u3001\u6570\u636e\u5e93<\/li>\n<li data-id=\"ld70c578-7WYqwQAs\">\u600e\u4e48\u5229\u7528\u8bb0\u5fc6\uff1aRAG\u3001Few-shot&#8230;<\/li>\n<\/ul>\n<h4>3. \u6709\u54ea\u4e9bMemory\u7c7b\u578b\uff1f<\/h4>\n<p>\u5173\u4e8eMemory\u7684\u5206\u7c7b\uff0c\u6709\u8bb8\u591a\u79cd\u5206\u7c7b\u4f53\u7cfb\uff0c\u8fd9\u91cc\u6211\u4eec\u53ea\u8ba8\u8bba\u6700\u5e38\u89c1\u53ca\u6700\u6613\u4e8e\u7406\u89e3\u7684\u3002<\/p>\n<p>\u6b63\u5982\u4eba\u7c7b\u5229\u7528\u957f\u77ed\u671f\u8bb0\u5fc6\u8fdb\u884c\u6709\u6548\u7684\u4ea4\u4e92\u548c\u5b66\u4e60\u4e00\u6837\uff0cAgent\u7684\u8bb0\u5fc6\u673a\u5236\u901a\u5e38\u5212\u5206\u4e3a\u77ed\u671f\u8bb0\u5fc6\uff08short-term memory\uff09\u548c\u957f\u671f\u8bb0\u5fc6(long-term memory)\uff0c\u77ed\u671f\u8bb0\u5fc6\u51b3\u5b9a\u4e86Agent\u5728\u5fae\u89c2\u4efb\u52a1\u4e0a\u7684\u5373\u65f6\u8868\u73b0\uff0c\u800c\u957f\u671f\u8bb0\u5fc6\u5219\u4f5c\u4e3a\u6301\u4e45\u77e5\u8bc6\u5e93\uff0c\u51b3\u5b9a\u4e86Agent\u5728\u5b8f\u89c2\u65f6\u95f4\u5c3a\u5ea6\u4e0a\u7684\u667a\u80fd\u6df1\u5ea6\u548c\u4e2a\u6027\u5316\u6c34\u5e73\uff0c\u901a\u8fc7\u4e24\u8005\u914d\u5408\uff0cAgent\u624d\u80fd\u8868\u73b0\u51fa\u8fde\u8d2f\u6027\u3001\u4e0a\u4e0b\u6587\u611f\u77e5\u80fd\u529b\uff0c\u624d\u4f1a\u663e\u5f97\u66f4\u667a\u80fd\u3002<\/p>\n<h4>4. Agent Memory\u5982\u4f55\u5de5\u4f5c\uff1f<\/h4>\n<p>Agent\u901a\u5e38\u901a\u8fc7\u4ee5\u4e0b\u51e0\u6b65\u6765\u6709\u6548\u5730\u7ba1\u7406\u8bb0\u5fc6\uff0c\u4f7f\u5f97\u6bcf\u6b21\u4e8e\u7528\u6237\u7684\u4ea4\u4e92\u90fd\u66f4\u52a0\u7cbe\u51c6\u667a\u80fd\uff1a<\/p>\n<ul data-id=\"u738a58b-6iLWMQ9J\">\n<li data-id=\"ld70c578-jsDskaXa\">\u8bb0\u5fc6\u5b58\u50a8\uff1a\u901a\u8fc7\u8bbe\u8ba1\u4e00\u7cfb\u5217\u7b56\u7565\u6765\u5b58\u50a8\u91cd\u8981\u7684\u4ea4\u4e92\u4fe1\u606f\uff0c\u8fd9\u4e9b\u4fe1\u606f\u53ef\u80fd\u6765\u6e90\u4e8e\u5bf9\u8bdd\u5185\u5bb9\u3001\u5386\u53f2\u6570\u636e\u6216\u4efb\u52a1\u8981\u6c42\u7b49\u7b49\u3002<\/li>\n<li data-id=\"ld70c578-D0XKU07N\">\u8bb0\u5fc6\u66f4\u65b0\uff1a\u8bb0\u5fc6\u4f1a\u968f\u7740\u4ea4\u4e92\u7684\u53d1\u751f\uff0c\u4e0d\u65ad\u5730\u8fdb\u884c\u66f4\u65b0\uff0c\u4f8b\u5982\u7528\u6237\u7684\u504f\u597d\u3001\u6700\u65b0\u7684\u8fd1\u51b5\u7b49\u7b49\u3002\u8bb0\u5fc6\u66f4\u65b0\u4f7f\u5f97Agent\u80fd\u591f\u4e0d\u65ad\u4f18\u5316\u5176\u54cd\u5e94\u3002<\/li>\n<li data-id=\"ld70c578-y2Z3r22Q\">\u8bb0\u5fc6\u68c0\u7d22\uff1aAgent\u6839\u636e\u5f53\u4e0b\u7684\u9700\u6c42\uff0c\u53bb\u8bb0\u5fc6\u4e2d\u68c0\u7d22\u9700\u8981\u7684\u8bb0\u5fc6\u5185\u5bb9\uff0c\u4ece\u800c\u63d0\u4f9b\u66f4\u52a0\u667a\u80fd\u7684\u56de\u590d\u3002<\/li>\n<\/ul>\n<h4>5. Agent Memory\u600e\u4e48\u5b9e\u73b0\uff1f<\/h4>\n<ul data-id=\"u738a58b-MJL9MVSR\">\n<li data-id=\"ld70c578-5EMT6pip\">\u7269\u7406\u5916\u6302\uff1a\u5373\u5916\u7f6e\u6570\u636e\u5e93\u548c RAG\uff0c\u9700\u8981\u68c0\u7d22\u5f53\u524dquery\u76f8\u5173\u7684\u5185\u5bb9\uff0c\u4f8b\u5982\uff1aMem0\u3001ACE\u3002\u597d\u5904\u662f\u5373\u63d2\u5373\u7528\uff0c\u574f\u5904\u662f\u4e0d\u591fend-to-end<\/li>\n<li data-id=\"ld70c578-lIYqNC1a\">Memory as Reasoning \/ Tool\uff1a\u901a\u8fc7\u8bad\u7ec3Reasoning\u6216Tool\u7684\u65b9\u5f0f\u52a8\u6001\u66f4\u65b0context\uff0c\u4f8b\u5982\uff1aMemAgent\u3001memory-R1\u3002\u597d\u5904\u662f\u66f4\u63a5\u8fd1end-to-end\uff0c\u4f46\u4e0d\u662f\u5f88\u7075\u6d3b\u3002<\/li>\n<li data-id=\"ld70c578-6DnDo6CU\">\u53c2\u6570\u66f4\u65b0\uff1aLLM\u672c\u8eab\u5c31\u662f\u4e00\u4e2aMemory\u4f53\uff0c\u6240\u6709\u53c2\u6570\u90fd\u662f\u5b83\u7684Memory\uff0c\u901a\u8fc7\u66f4\u65b0\u53c2\u6570\u6765\u66f4\u65b0\u8bb0\u5fc6\uff0c\u8fd9\u79cd\u65b9\u5f0f\u662f\u6700\u672c\u8d28\u7684\uff0c\u4f46\u4e5f\u662f\u6700\u96be\u5b9e\u73b0\u7684\u3002<\/li>\n<\/ul>\n<h3>\u4e8c\u3001LangGraph\u4e2d\u7684\u8bb0\u5fc6\u7ba1\u7406<\/h3>\n<p>LangGraph[2]\u4f5c\u4e3a\u4e00\u6b3e\u9762\u5411\u591a\u667a\u80fd\u4f53\u534f\u4f5c\u4e0e\u72b6\u6001\u7ba1\u7406\u7684\u6846\u67b6\uff0c\u5176\u8bbe\u8ba1\u4e86\u5de7\u5999\u7684\u8bb0\u5fc6\u7ba1\u7406\u7cfb\u7edf\uff0c\u65e8\u5728\u4e3aAgent\u63d0\u4f9b\u5728\u4e0d\u540c\u4ea4\u4e92\u4e2d\u5b58\u50a8\u3001\u68c0\u7d22\u548c\u5229\u7528\u4fe1\u606f\u7684\u80fd\u529b\u3002\u5b83\u533a\u5206\u4e86\u4e24\u79cd\u4e3b\u8981\u7684\u8bb0\u5fc6\u7c7b\u578b\uff1a\u77ed\u671f\u8bb0\u5fc6\u548c\u957f\u671f\u8bb0\u5fc6\u3002\u5728\u5b9e\u9645\u4f7f\u7528\u4e2d\uff0c\u901a\u8fc7\u8fd9\u4e24\u79cd\u8bb0\u5fc6\u534f\u540c\uff0c\u65e2\u80fd\u4fdd\u969c\u5b9e\u65f6\u4efb\u52a1\u7684\u9ad8\u6548\u6267\u884c\uff0c\u53c8\u652f\u6301\u4e86\u8de8\u4efb\u52a1\u3001\u8de8\u5468\u671f\u7684\u7ecf\u9a8c\u590d\u7528\u3002<\/p>\n<ul data-id=\"u738a58b-kNp7ZReI\">\n<li data-id=\"ld70c578-JYqyHhQa\">short-term memory\uff08\u901a\u8fc7Checkpointer\u5b9e\u73b0\uff09\uff1a\u9488\u5bf9\u5355\u4e2a\u5bf9\u8bdd\u7ebf\u7a0b\uff0c\u6838\u5fc3\u4ef7\u503c\u5728\u4e8e\u4fdd\u969c\u5bf9\u8bdd\u7684\u4e34\u65f6\u6027\uff0c\u4f7f\u5f97Agent\u80fd\u591f\u8ddf\u8e2a\u4f1a\u8bdd\u4e2d\u7684\u591a\u8f6e\u5bf9\u8bdd\uff0c\u53ef\u4ee5\u5728\u8be5\u7ebf\u7a0b\u5185\u7684\u4efb\u4f55\u65f6\u523b\u88ab\u56de\u5fc6\u3002<\/li>\n<li data-id=\"ld70c578-bfjlHRmT\">long-term memory\uff08\u901a\u8fc7Store\u5b9e\u73b0\uff09\uff1a\u53ef\u4ee5\u8de8\u5bf9\u8bdd\u7ebf\u7a0b\u5171\u4eab\uff0c\u53ef\u4ee5\u5728\u4efb\u4f55\u65f6\u95f4\uff0c\u4efb\u4f55\u7ebf\u7a0b\u4e2d\u88ab\u56de\u5fc6\uff0c\u800c\u4e0d\u50cf\u77ed\u671f\u8bb0\u5fc6\u5c40\u9650\u4e8e\u5355\u4e2a\u5bf9\u8bdd\u3002<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/s2.51cto.com\/oss\/202512\/10\/4208ce9420781660211952457aadd86035c4f6.webp\" data-type=\"block\" \/><\/p>\n<p>\u901a\u8fc7\u4e0b\u8868\uff0c\u53ef\u4ee5\u66f4\u6e05\u6670\u7684\u770b\u5230\u4e24\u8005\u7684\u533a\u522b\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/s2.51cto.com\/oss\/202512\/10\/38f1a3a3457801c4b4997228ac7bbe653367db.webp\" data-type=\"block\" \/><\/p>\n<h4>1. LangGraph\u8bb0\u5fc6\u7684\u67b6\u6784\u57fa\u7840<\/h4>\n<p>\u8981\u60f3\u66f4\u597d\u7684\u7406\u89e3LangGraph\u4e2d\u7684\u8bb0\u5fc6\u673a\u5236\uff0c\u9996\u5148\u9700\u8981\u7406\u89e3\u5176\u652f\u6301\u53cc\u8f68\u8bb0\u5fc6\u7cfb\u7edf\u7684\u6838\u5fc3\u6982\u5ff5\u3002<\/p>\n<p><strong>(1) Checkpointer<\/strong><\/p>\n<p>LangGraph\u6709\u4e00\u4e2a\u5185\u7f6e\u7684\u6301\u4e45\u5316\uff08Persistence\uff09\u5c42\uff0c\u901a\u8fc7checkpointer\u5b9e\u73b0\uff0c\u80fd\u591f\u6301\u4e45\u5316\u5b58\u50a8\u56fe\u72b6\u6001\uff0c\u8fd9\u4f7f\u5f97\u5f00\u53d1\u8bb0\u5fc6\u529f\u80fd\u548c\u4eba\u7c7b\u5e72\u9884\u529f\u80fd\u6210\u4e3a\u53ef\u80fd\u3002<\/p>\n<p>\u5f53\u4f7f\u7528\u68c0\u67e5\u70b9\u7f16\u8bd1\u4e00\u4e2a\u56fe\u65f6\uff0c\u68c0\u67e5\u70b9\u4f1a\u5728\u6bcf\u4e2asuper-step\u4fdd\u5b58\u56fe\u72b6\u6001\u7684checkpoint\uff0c\u8fd9\u4e9bcheckpoint\u88ab\u4fdd\u5b58\u5230\u4e00\u4e2athread\u4e2d\uff0c\u53ef\u4ee5\u5728\u56fe\u6267\u884c\u540e\u8bbf\u95ee\u3002\u56e0\u4e3athreads\u5141\u8bb8\u5728\u6267\u884c\u540e\u8bbf\u95ee\u56fe\u7684\u72b6\u6001\uff0c\u6240\u4ee5\u53ef\u4ee5\u5b9e\u73b0\u8bb0\u5fc6\u3001\u4eba\u673a\u534f\u4f5c\u3001\u65f6\u95f4\u65c5\u884c\u3001\u5bb9\u9519\u7b49\u591a\u79cd\u5f3a\u5927\u7684\u529f\u80fd\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/s2.51cto.com\/oss\/202512\/10\/a3992e355c7d38ed53a07175d473253c0650ba.webp\" data-type=\"block\" \/><\/p>\n<p>\u5de5\u4f5c\u6d41\u7a0b\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_0\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">\u7528\u6237\u8f93\u5165 \u2192 <span class=\"token punctuation\">[<\/span>\u8282\u70b9 <span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span> \u2192 \ud83d\udcbe \u4fdd\u5b58\u72b6\u6001 \u2192 <span class=\"token punctuation\">[<\/span>\u8282\u70b9 <span class=\"token number\">2<\/span><span class=\"token punctuation\">]<\/span> \u2192 \ud83d\udcbe \u4fdd\u5b58\u72b6\u6001 \u2192 \u8f93\u51fa\r\n\u2193  \u2193\r\nCheckpoint <span class=\"token number\">1<\/span>   Checkpoint <span class=\"token number\">2<\/span><\/code><\/pre>\n<ul id=\"code_id_0\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>(2) Thread<\/strong><\/p>\n<p>\u4e3a\u4e86\u7ba1\u7406\u591a\u4e2a\u72ec\u7acb\u7684\u5bf9\u8bdd\uff0cLangGraph\u4f7f\u7528\u4e86thread\u7684\u6982\u5ff5\u3002thread_id\u662f\u7531checkpointer\u4fdd\u5b58\u7684\u6bcf\u4e2acheckpoint\u7684\u552f\u4e00id\uff0c\u662f\u6fc0\u6d3b\u548c\u533a\u5206\u4e0d\u540c\u5bf9\u8bdd\u7ebf\u7a0b\u7684\u552f\u4e00key\u3002\u5728\u8c03\u7528\u56fe\u7684invoke\u6216stream\u65b9\u6cd5\u65f6\uff0c\u901a\u8fc7configurable\u5b57\u5178\u4f20\u5165\u4e00\u4e2athread_id\uff0c\u5c31\u4ee3\u8868\u8fd9\u6b21\u64cd\u4f5c\u5c5e\u4e8ethread_id\u8fd9\u4e2a\u7279\u5b9a\u7684\u5bf9\u8bdd\u3002<\/p>\n<p><strong>(3) Store<\/strong><\/p>\n<p>\u5982\u4e0a\u6240\u8ff0\uff0c\u56fe\u72b6\u6001\u53ef\u4ee5\u7531checkpointer\u5728\u6bcf\u4e2asuper-step\u5199\u5165\u7ebf\u7a0b\uff0c\u4ece\u800c\u5b9e\u73b0\u72b6\u6001\u7684\u6301\u4e45\u5316\u3002\u4f46\u662f\uff0c\u5982\u679c\u60f3\u5728\u591a\u4e2a\u7ebf\u7a0b\u4e4b\u95f4\u4fdd\u7559\u4e00\u4e9b\u4fe1\u606f\u7684\u8bdd\uff0c\u90a3\u4e48\u5c31\u9700\u8981\u7528\u5230Store\u3002Store\u672c\u8d28\u4e0a\u662f\u4e00\u4e2a\u66b4\u9732\u7ed9\u56fe\u8282\u70b9\u548c\u5de5\u5177\u7684\u952e\u503c\u6570\u636e\u5e93\uff0c\u4e0echeckpointer\u7684\u81ea\u52a8\u5316\u5feb\u7167\u4e0d\u540c\uff0cStore\u9700\u8981\u663e\u5f0f\u548c\u4e3b\u52a8\u7684\u8fdb\u884c\u64cd\u4f5c\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/s2.51cto.com\/oss\/202512\/10\/f428d09366b37cd1afb877dd70fc367eb0fcf5.webp\" data-type=\"block\" \/><\/p>\n<p><strong>(4) Namespace<\/strong><\/p>\n<p>Store\u4e2d\u7684\u6570\u636e\u901a\u5e38\u901a\u8fc7\u66f4\u6301\u4e45\u7684\u6807\u8bc6\u6765\u7ec4\u7ec7\u3002user_id\u662f\u6700\u5e38\u89c1\u7684\uff0c\u7528\u4e8e\u5173\u8054\u7528\u6237\u7684\u6240\u6709\u4fe1\u606f\uff0c\u6b64\u5916\uff0cnamespace\u63d0\u4f9b\u4e86\u4e00\u79cd\u6570\u636e\u9694\u79bb\u673a\u5236\uff0c\u4f8b\u5982\uff0c\u4f7f\u7528\u4f7f\u7528 (\u201cmemories\u201d, user_id) \u8fd9\u6837\u7684\u5143\u7ec4\u4f5c\u4e3a\u547d\u540d\u7a7a\u95f4\uff0c\u53ef\u4ee5\u5c06\u7528\u6237\u7684\u8bb0\u5fc6\u4e0e\u5176\u4ed6\u7c7b\u578b\u7684\u6570\u636e\uff08\u5982\u7528\u6237\u504f\u597d (\u201cpreferences\u201d, user_id)\uff09\u6e05\u6670\u5730\u5206\u79bb\u5f00\u6765\uff0c\u907f\u514d\u6570\u636e\u51b2\u7a81\uff0c\u4fdd\u6301\u77e5\u8bc6\u5e93\u7684\u6574\u6d01\u6709\u5e8f\u3002<\/p>\n<h4>2. \u77ed\u671f\u8bb0\u5fc6\u8be6\u89e3<\/h4>\n<p><strong>(1) InMemorySaver\u5185\u5b58\u4f1a\u8bdd\u4e34\u65f6\u5b58\u50a8<\/strong><\/p>\n<p>\u5bf9\u4e8e\u5f00\u53d1\u3001\u539f\u578b\u8bbe\u8ba1\u548c\u6d4b\u8bd5\u9636\u6bb5\uff0c\u6700\u7b80\u5355\u5feb\u6377\u7684\u65b9\u5f0f\u662f\u4f7f\u7528InMemorySaver\u3002\u5b83\u5c06\u6240\u6709\u7684\u5bf9\u8bdd\u72b6\u6001\u5b58\u50a8\u5728\u5185\u5b58\u4e2d\u7684\u4e00\u4e2aPython\u5b57\u5178\u91cc\u3002<\/p>\n<p>\u2460\u8bbe\u7f6e\u8bb0\u5fc6\u7ba1\u7406\u68c0\u67e5\u70b9<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_1\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">from langchain_openai <span class=\"token keyword\">import<\/span> ChatOpenAI\r\nfrom langchain<span class=\"token punctuation\">.<\/span>chat_models <span class=\"token keyword\">import<\/span> init_chat_model\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>checkpoint<span class=\"token punctuation\">.<\/span>memory <span class=\"token keyword\">import<\/span> InMemorySaver\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>prebuilt <span class=\"token keyword\">import<\/span> create_react_agent\r\n \r\n# \u521d\u59cb\u5316\u68c0\u67e5\u70b9\u4fdd\u5b58\u5668\r\ncheckpointer <span class=\"token operator\">=<\/span> <span class=\"token function\">InMemorySaver<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_1\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u2461 \u5b9a\u4e49\u5927\u6a21\u578b\u5e76\u521b\u5efaagent<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_2\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\"><span class=\"token constant\">BASE_URL<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span> \r\n<span class=\"token constant\">TOKEN<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n<span class=\"token constant\">MODEL_NAME<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n\r\nmodel <span class=\"token operator\">=<\/span> <span class=\"token function\">init_chat_model<\/span><span class=\"token punctuation\">(<\/span>\r\n    model<span class=\"token operator\">=<\/span><span class=\"token constant\">MODEL_NAME<\/span><span class=\"token punctuation\">,<\/span>\r\n    model_provider<span class=\"token operator\">=<\/span><span class=\"token string\">\"openai\"<\/span><span class=\"token punctuation\">,<\/span> \r\n    base_url<span class=\"token operator\">=<\/span><span class=\"token constant\">BASE_URL<\/span><span class=\"token punctuation\">,<\/span>\r\n    api_key<span class=\"token operator\">=<\/span><span class=\"token constant\">TOKEN<\/span><span class=\"token punctuation\">,<\/span>\r\n    temperature<span class=\"token operator\">=<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\nagent <span class=\"token operator\">=<\/span> <span class=\"token function\">create_react_agent<\/span><span class=\"token punctuation\">(<\/span>\r\n    model<span class=\"token operator\">=<\/span>model<span class=\"token punctuation\">,<\/span>\r\n    tools<span class=\"token operator\">=<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>\r\n    # \u4f20\u5165\u68c0\u67e5\u70b9\uff0c\u662f\u5c06\u6301\u4e45\u5316\u80fd\u529b\u201c\u6ce8\u5165\u201d\u56fe\u7684\u5173\u952e\u6b65\u9aa4\u3002\u7f16\u8bd1\u540e\u7684graph\u5bf9\u8c61\u73b0\u5728\u5177\u5907\u4e86\u72b6\u6001\u7ba1\u7406\u7684\u80fd\u529b\u3002\r\n    checkpointer<span class=\"token operator\">=<\/span>checkpointer\r\n<span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_2\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<li>15.<\/li>\n<li>16.<\/li>\n<li>17.<\/li>\n<li>18.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u5982\u679c\u662f\u5e95\u5c42\u81ea\u5b9a\u4e49api\u5728\u56fe\u6784\u5efa\u9636\u6bb5\u4f20\u5165\u68c0\u67e5\u70b9\u7684\u4ee3\u7801\u662fgraph = builder.compile(checkpointer=checkpointer)\u3002<\/p>\n<p>\u2462 \u77ed\u671f\u8bb0\u5fc6-\u5185\u5b58\u540e\u7aef<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_3\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">config <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"configurable\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"thread_id\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"1\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">}<\/span>  # \u6fc0\u6d3b\u8bb0\u5fc6\u673a\u5236\u7684\u6838\u5fc3\u3002\u5982\u679c\u6ca1\u6709\u63d0\u4f9bthread_id\uff0c\u6bcf\u6b21invoke\u8c03\u7528\u90fd\u5c06\u662f\u65e0\u72b6\u6001\u7684\uff0c\u53ea\u8981\u4f7f\u7528\u76f8\u540c\u7684thread_id\uff0cLangGraph\u5c31\u4f1a\u5728\u591a\u6b21\u8c03\u7528\u4e4b\u95f4\u7ef4\u6301\u5bf9\u8bdd\u72b6\u6001\r\n\r\nresponse <span class=\"token operator\">=<\/span> agent<span class=\"token punctuation\">.<\/span><span class=\"token function\">invoke<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"role\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"user\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string-property property\">\"content\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u4f60\u597d\uff0c\u6211\u53ebada\uff01\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\r\n    config\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\n<span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>f<span class=\"token string\">\"thread1_bot_answer\uff1a{response['messages'][-1].content}\"<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\nresponse <span class=\"token operator\">=<\/span> agent<span class=\"token punctuation\">.<\/span><span class=\"token function\">invoke<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"role\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"user\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string-property property\">\"content\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u4f60\u597d\uff0c\u8bf7\u95ee\u4f60\u8fd8\u8bb0\u5f97\u6211\u53eb\u4ec0\u4e48\u540d\u5b57\u4e48\uff1f\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\r\n    config\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\n<span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'------------\u7ebf\u7a0b1------------------'<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>f<span class=\"token string\">\"thread1_bot_answer\uff1a{response['messages'][-1].content}\"<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\nnew_config <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"configurable\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"thread_id\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"2\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">}<\/span>\r\nresponse <span class=\"token operator\">=<\/span> agent<span class=\"token punctuation\">.<\/span><span class=\"token function\">invoke<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"role\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"user\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string-property property\">\"content\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u4f60\u597d\uff0c\u8bf7\u95ee\u4f60\u8fd8\u8bb0\u5f97\u6211\u53eb\u4ec0\u4e48\u540d\u5b57\u4e48\uff1f\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\r\n    new_config\r\n<span class=\"token punctuation\">)<\/span>\r\n<span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'------------\u7ebf\u7a0b2------------------'<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>f<span class=\"token string\">\"thread2_bot_answer\uff1a{response['messages'][-1].content}\"<\/span><span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_3\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<li>15.<\/li>\n<li>16.<\/li>\n<li>17.<\/li>\n<li>18.<\/li>\n<li>19.<\/li>\n<li>20.<\/li>\n<li>21.<\/li>\n<li>22.<\/li>\n<li>23.<\/li>\n<li>24.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u6267\u884c\u4e0a\u9762\u4ee3\u7801\uff0c\u53ef\u4ee5\u770b\u5230\u8f93\u51fa\u5982\u4e0b\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_4\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">thread1_bot_answer\uff1a\u4f60\u597d\uff0cAda\uff01\u5f88\u9ad8\u5174\u8ba4\u8bc6\u4f60\uff01\ud83d\ude0a\r\n \r\n\u8fd9\u662f\u4e00\u4e2a\u5f88\u7f8e\u7684\u540d\u5b57\u5462\uff01\u6709\u4ec0\u4e48\u6211\u53ef\u4ee5\u5e2e\u52a9\u4f60\u7684\u5417\uff1f\u65e0\u8bba\u662f\u60f3\u804a\u804a\u5929\uff0c\u8fd8\u662f\u6709\u4efb\u4f55\u95ee\u9898\u9700\u8981\u89e3\u7b54\uff0c\u6211\u90fd\u5f88\u4e50\u610f\u4e3a\u4f60\u63d0\u4f9b\u5e2e\u52a9\u3002\r\n<span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span>\u7ebf\u7a0b<span class=\"token number\">1<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span>\r\nthread1_bot_answer\uff1a\u5f53\u7136\u8bb0\u5f97\uff01\u4f60\u521a\u624d\u544a\u8bc9\u6211\u4f60\u53eb Ada\uff5e\u5f88\u9ad8\u5174\u518d\u6b21\u548c\u4f60\u6253\u62db\u547c\uff01\ud83d\ude0a\r\n<span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span>\u7ebf\u7a0b<span class=\"token number\">2<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span>\r\nthread2_bot_answer\uff1a\u4f60\u597d\uff01\u5f88\u62b1\u6b49\uff0c\u6211\u65e0\u6cd5\u8bb0\u4f4f\u4e4b\u524d\u5bf9\u8bdd\u4e2d\u7684\u4e2a\u4eba\u4fe1\u606f\uff0c\u6bd4\u5982\u4f60\u7684\u540d\u5b57\u3002\u8fd9\u662f\u4e3a\u4e86\u4fdd\u62a4\u4f60\u7684\u9690\u79c1\uff0c\u6240\u4ee5\u6211\u4e0d\u4f1a\u4fdd\u7559\u8fd9\u7c7b\u6570\u636e\u3002\u4f60\u53ef\u4ee5\u544a\u8bc9\u6211\u4f60\u7684\u540d\u5b57\uff0c\u6216\u8005\u4efb\u4f55\u4f60\u60f3\u8ba9\u6211\u79f0\u547c\u4f60\u7684\u65b9\u5f0f\uff0c\u6211\u4f1a\u5f88\u4e50\u610f\u5728\u8fd9\u6b21\u7684\u5bf9\u8bdd\u4e2d\u4f7f\u7528\u5b83\uff01\ud83d\ude0a<\/code><\/pre>\n<ul id=\"code_id_4\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u77ed\u671f\u8bb0\u5fc6\u4e0e\u7ebf\u7a0b\u76f8\u5173\uff0c\u5728\u5bf9\u8bdd\u65f6\uff0c\u9700\u8981\u5728\u914d\u7f6e\u4e2d\u4f20\u5165thread_id\u3002\u901a\u8fc7\u4e0a\u9762\u7684\u7ed3\u679c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\uff0c\u5f53\u6211\u4eec\u4f20\u5165\u76f8\u540c\u7684thread_id\u65f6\uff0cagent\u5c31\u53ef\u4ee5\u8bb0\u4f4f\u7528\u6237\u7684\u540d\u5b57\uff0c\u7136\u800c\u5f53\u6211\u4eec\u66f4\u6362thread_id\u65f6\uff0cagent\u5c31\u4e0d\u8bb0\u5f97\u7528\u6237\u7684\u540d\u5b57\u4e86\u3002<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cInMemorySaver\u5c06\u6240\u6709\u72b6\u6001\u90fd\u4fdd\u5b58\u5728\u5185\u5b58\u4e2d\uff0c\u4e00\u65e6\u7a0b\u5e8f\u7ec8\u6b62\uff0c\u90a3\u4e48\u6240\u6709\u5bf9\u8bdd\u5386\u53f2\u90fd\u4f1a\u6d88\u5931\u3002<\/p>\n<p><strong>(2) \u6570\u636e\u5e93\u6301\u4e45\u5316\u5b58\u50a8<\/strong><\/p>\n<p>\u53ef\u4ee5\u53d1\u73b0\uff0c\u4e0a\u9762\u4e00\u5c0f\u8282\u7684\u4ee3\u7801\u5728\u5e94\u7528\u7a0b\u5e8f\u7ed3\u675f\u540e\u518d\u542f\u52a8\uff0c\u8bb0\u5fc6\u5c31\u53c8\u6d88\u5931\u4e86\u3002\u8fd9\u662f\u56e0\u4e3aInMemorySaver\u4ec5\u4ec5\u662f\u628a\u8bb0\u5fc6\u4fdd\u5b58\u5728\u5185\u5b58\u4e2d\uff0c\u5e94\u7528\u7a0b\u5e8f\u7ed3\u675f\u540e\u91ca\u653e\u5185\u5b58\u8bb0\u5fc6\u5c31\u6d88\u5931\u4e86\u3002\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u5e38\u5e38\u4f7f\u7528\u6570\u636e\u5e93\u652f\u6301\u7684\u68c0\u67e5\u70b9\u8bb0\u5f55\u5668\u6301\u4e45\u5316\u4fdd\u5b58\u8bb0\u5fc6\uff0c\u4ee5\u4fdd\u8bc1\u6570\u636e\u7684\u53ef\u9760\u6027\u548c\u670d\u52a1\u7684\u8fde\u7eed\u6027\u3002<\/p>\n<p>\u8fd9\u91cc\u6211\u4eec\u4ee5postgres\u6570\u636e\u5e93\u4e3a\u4f8b\u6765\u8bf4\u660e\uff0c\u600e\u4e48\u6301\u4e45\u5316\u5730\u4fdd\u5b58\u8bb0\u5fc6\u6570\u636e\u3002<\/p>\n<p>\u2460 \u9996\u5148\u5b89\u88c5\u4ee5\u4e0b\u4f9d\u8d56\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_5\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">pip install <span class=\"token operator\">-<\/span><span class=\"token constant\">U<\/span> <span class=\"token string\">\"psycopg[binary,pool]\"<\/span> langgraph<span class=\"token operator\">-<\/span>checkpoint<span class=\"token operator\">-<\/span>postgres<\/code><\/pre>\n<ul id=\"code_id_5\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u2461 \u5b89\u88c5postgres\u6570\u636e\u5e93\uff0c\u5177\u4f53\u7684\u5b89\u88c5\u65b9\u6cd5\u53ef\u4ee5\u53c2\u8003\uff1aLinux\u4e0b\u5b89\u88c5PostgreSQL_linux\u5b89\u88c5postgresql-CSDN\u535a\u5ba2\u3002\u8fd9\u91cc\u9009\u62e9\u4ee5\u6e90\u7801\u7684\u65b9\u5f0f\u8fdb\u884c\u5b89\u88c5\uff0c\u5b89\u88c5\u5305\u4ece\u5b98\u7f51\uff08PostgreSQL: Downloads\uff09\u4e0b\u8f7d\uff0c\u9009\u62e9\u6700\u65b0\u7684postgresql-18.0.tar.gz\u3002<\/p>\n<p>\u2462 \u5b89\u88c5\u6570\u636e\u5e93\u6210\u529f\u540e\uff0c\u7f16\u7801\u5982\u4e0b\u4ee3\u7801\u3002<\/p>\n<p>DB_URI\u662f\u6570\u636e\u5e93\u8fde\u63a5\u7684URL\u3002\u60f3\u8981\u81ea\u52a8\u4fdd\u5b58\u5728\u6570\u636e\u5e93\u4e2d\u7684State\u9700\u8981\u5728PostgresSaver.from_conn_string(DB_URI)\u4e0a\u4e0b\u6587\u4e2d\u64cd\u4f5c\u3002<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_6\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">from langchain<span class=\"token punctuation\">.<\/span>chat_models <span class=\"token keyword\">import<\/span> init_chat_model\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>graph <span class=\"token keyword\">import<\/span> StateGraph<span class=\"token punctuation\">,<\/span> MessagesState<span class=\"token punctuation\">,<\/span> <span class=\"token constant\">START<\/span>\r\n\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>checkpoint<span class=\"token punctuation\">.<\/span>postgres <span class=\"token keyword\">import<\/span> PostgresSaver\r\n\r\n<span class=\"token constant\">BASE_URL<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n<span class=\"token constant\">TOKEN<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n<span class=\"token constant\">MODEL_NAME<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n\r\nmodel <span class=\"token operator\">=<\/span> <span class=\"token function\">init_chat_model<\/span><span class=\"token punctuation\">(<\/span>\r\n    model<span class=\"token operator\">=<\/span><span class=\"token constant\">MODEL_NAME<\/span><span class=\"token punctuation\">,<\/span>\r\n    model_provider<span class=\"token operator\">=<\/span><span class=\"token string\">\"openai\"<\/span><span class=\"token punctuation\">,<\/span> \r\n    base_url<span class=\"token operator\">=<\/span><span class=\"token constant\">BASE_URL<\/span><span class=\"token punctuation\">,<\/span>\r\n    api_key<span class=\"token operator\">=<\/span><span class=\"token constant\">TOKEN<\/span><span class=\"token punctuation\">,<\/span>\r\n    temperature<span class=\"token operator\">=<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\n<span class=\"token constant\">DB_URI<\/span> <span class=\"token operator\">=<\/span> <span class=\"token string\">\"postgresql:\/\/postgres:postgres@localhost:5432\/postgres?sslmode=disable\"<\/span>\r\n\r\n<span class=\"token keyword\">with<\/span> PostgresSaver<span class=\"token punctuation\">.<\/span><span class=\"token function\">from_conn_string<\/span><span class=\"token punctuation\">(<\/span><span class=\"token constant\">DB_URI<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">as<\/span> <span class=\"token literal-property property\">checkpointer<\/span><span class=\"token operator\">:<\/span>\r\n    checkpointer<span class=\"token punctuation\">.<\/span><span class=\"token function\">setup<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>  # <span class=\"token function\">\u7b2c\u4e00\u6b21\u8c03\u7528\u65f6\u5fc5\u987b\u8981setup<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n    \r\n    def <span class=\"token function\">call_model<\/span><span class=\"token punctuation\">(<\/span>state<span class=\"token operator\">:<\/span> MessagesState<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n   response <span class=\"token operator\">=<\/span> model<span class=\"token punctuation\">.<\/span><span class=\"token function\">invoke<\/span><span class=\"token punctuation\">(<\/span>state<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"messages\"<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span>\r\n   <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> response<span class=\"token punctuation\">}<\/span>\r\n    \r\n    builder <span class=\"token operator\">=<\/span> <span class=\"token function\">StateGraph<\/span><span class=\"token punctuation\">(<\/span>MessagesState<span class=\"token punctuation\">)<\/span>\r\n    builder<span class=\"token punctuation\">.<\/span><span class=\"token function\">add_node<\/span><span class=\"token punctuation\">(<\/span>call_model<span class=\"token punctuation\">)<\/span>\r\n    builder<span class=\"token punctuation\">.<\/span><span class=\"token function\">add_edge<\/span><span class=\"token punctuation\">(<\/span><span class=\"token constant\">START<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"call_model\"<\/span><span class=\"token punctuation\">)<\/span>\r\n    \r\n    graph <span class=\"token operator\">=<\/span> builder<span class=\"token punctuation\">.<\/span><span class=\"token function\">compile<\/span><span class=\"token punctuation\">(<\/span>checkpointer<span class=\"token operator\">=<\/span>checkpointer<span class=\"token punctuation\">)<\/span>\r\n    \r\n    config <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">{<\/span>\r\n   <span class=\"token string-property property\">\"configurable\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span>\r\n<span class=\"token string-property property\">\"thread_id\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"1\"<\/span>\r\n   <span class=\"token punctuation\">}<\/span>\r\n    <span class=\"token punctuation\">}<\/span>\r\n\r\n    response <span class=\"token operator\">=<\/span> graph<span class=\"token punctuation\">.<\/span><span class=\"token function\">invoke<\/span><span class=\"token punctuation\">(<\/span>\r\n   <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"role\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"user\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string-property property\">\"content\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u4f60\u597d\uff0c\u6211\u53ebada\uff01\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\r\n   config\r\n    <span class=\"token punctuation\">)<\/span>\r\n\r\n    <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>response<span class=\"token punctuation\">[<\/span><span class=\"token string\">'messages'<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span><span class=\"token operator\">-<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>content<span class=\"token punctuation\">)<\/span>\r\n\r\n    response <span class=\"token operator\">=<\/span> graph<span class=\"token punctuation\">.<\/span><span class=\"token function\">invoke<\/span><span class=\"token punctuation\">(<\/span>\r\n   <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"role\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"user\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string-property property\">\"content\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u4f60\u597d\uff0c\u8bf7\u95ee\u4f60\u8fd8\u8bb0\u5f97\u6211\u53eb\u4ec0\u4e48\u540d\u5b57\u4e48\uff1f\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\r\n   config\r\n    <span class=\"token punctuation\">)<\/span>\r\n\r\n    <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>response<span class=\"token punctuation\">[<\/span><span class=\"token string\">'messages'<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span><span class=\"token operator\">-<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>content<span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_6\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<li>15.<\/li>\n<li>16.<\/li>\n<li>17.<\/li>\n<li>18.<\/li>\n<li>19.<\/li>\n<li>20.<\/li>\n<li>21.<\/li>\n<li>22.<\/li>\n<li>23.<\/li>\n<li>24.<\/li>\n<li>25.<\/li>\n<li>26.<\/li>\n<li>27.<\/li>\n<li>28.<\/li>\n<li>29.<\/li>\n<li>30.<\/li>\n<li>31.<\/li>\n<li>32.<\/li>\n<li>33.<\/li>\n<li>34.<\/li>\n<li>35.<\/li>\n<li>36.<\/li>\n<li>37.<\/li>\n<li>38.<\/li>\n<li>39.<\/li>\n<li>40.<\/li>\n<li>41.<\/li>\n<li>42.<\/li>\n<li>43.<\/li>\n<li>44.<\/li>\n<li>45.<\/li>\n<li>46.<\/li>\n<li>47.<\/li>\n<li>48.<\/li>\n<li>49.<\/li>\n<li>50.<\/li>\n<li>51.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u8fd0\u884c\u4e00\u6b21\u4e0a\u8ff0\u4ee3\u7801\u540e\uff0c\u5173\u95ed\u5e94\u7528\u7a0b\u5e8f\u540e\u91cd\u542f\uff0c\u518d\u6b21\u8fd0\u884c\u4e0a\u8ff0\u4ee3\u7801\uff0cprint\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_7\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">bot_answer_1\uff1a\u4f60\u597d\uff0cAda\uff01\u5f88\u9ad8\u5174\u518d\u6b21\u89c1\u5230\u4f60\uff01\ud83d\ude0a\r\n \r\n\u4f60\u7684\u540d\u5b57\u771f\u52a8\u542c\uff01\u4eca\u5929\u6709\u4ec0\u4e48\u6211\u53ef\u4ee5\u5e2e\u4f60\u89e3\u7b54\u6216\u8005\u60f3\u804a\u7684\u8bdd\u9898\u5417\uff1f\r\nbot_answer_2\uff1a\u5f53\u7136\u8bb0\u5f97\uff01\u4f60\u544a\u8bc9\u6211\u4f60\u53eb <span class=\"token operator\">**<\/span>Ada<span class=\"token operator\">**<\/span>\u3002\u5f88\u9ad8\u5174\u518d\u6b21\u548c\u4f60\u6253\u62db\u547c\uff01\ud83d\ude0a<\/code><\/pre>\n<ul id=\"code_id_7\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u53ef\u4ee5\u770b\u5230\uff0c\u8bb0\u5fc6\u5df2\u7ecf\u88ab\u4fdd\u5b58\u4e86\u3002\u6211\u4eec\u68c0\u67e5\u6570\u636e\u5e93\u53ef\u4ee5\u53d1\u73b0\uff0cpostgres\u6570\u636e\u5e93\u4e2d\u51fa\u73b0\u4e86\u56db\u4e2a\u8868\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/s2.51cto.com\/oss\/202512\/10\/e63ba7f08ffa6ecc5719627388a995da8baf2c.webp\" data-type=\"block\" \/><\/p>\n<p>\u4e0a\u8ff0\u8868\u4e2d\uff0ccheckpoints\u8868\u662f\u201d\u72b6\u6001\u5feb\u7167\u201c\u8868\uff0c\u6bcf\u5f53\u7a0b\u5e8f\u6267\u884c\u4e00\u4e2astep\u65f6\uff0c\u5b83\u5c31\u4f1a\u5728\u8fd9\u5f20\u8868\u4e2d\u521b\u5efa\u4e00\u6761\u65b0\u8bb0\u5f55\uff0c\u8fd9\u6761\u8bb0\u5f55\u5c31\u662f\u4e00\u4e2a\u68c0\u67e5\u70b9\u7684\u5feb\u7167\u3002\u67e5\u8be2\u8be5\u8868\uff0c\u53ef\u4ee5\u5f97\u5230\u5982\u4e0b\u7ed3\u679c\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/s2.51cto.com\/oss\/202512\/10\/f29dca717ffb4bd6b20079e324a0c1b468d793.webp\" data-type=\"block\" \/><\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u6765\u5206\u6790\u6bcf\u4e00\u5217\u7684\u542b\u4e49\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/s2.51cto.com\/oss\/202512\/10\/f3bbec917d7559c52d7713e5f67ebd6fcda0f3.webp\" data-type=\"block\" \/><\/p>\n<p>\u7406\u89e3\u4e86\u4e0a\u9762checkpoints\u8868\u540e\uff0c\u90a3\u4e48\u4e0d\u7981\u4f1a\u95ee\uff0c\u771f\u6b63\u7684\u6d88\u606f\u5185\u5bb9\u88ab\u5b58\u5230\u4e86\u54ea\u91cc\u5462\uff1f\u771f\u6b63\u7684\u6d88\u606f\u5185\u5bb9\u5b58\u50a8\u5728checkpoint_writes\u8868\u4e2d\uff0c\u5982\u4e0b\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/s2.51cto.com\/oss\/202512\/10\/95a60a971311309c36e0808eb9c0813df1a4e5.webp\" data-type=\"block\" \/><\/p>\n<p>\u9664\u4e86PostgreSQL\u4e4b\u5916\uff0cLangGraph\u8fd8\u652f\u6301MongoDB\u3001Redis\u7b49\u6570\u636e\u5e93\u3002<\/p>\n<p><strong>(3) \u5b50\u56fe\u4e2d\u7684\u8bb0\u5fc6<\/strong><\/p>\n<p>\u5f53\u6784\u5efa\u590d\u6742\u7684\u3001\u7531\u591a\u4e2a\u5b50\u56fe\u5d4c\u5957\u800c\u6210\u7684\u5e94\u7528\u65f6\uff0c\u9700\u8981\u66f4\u7075\u6d3b\u7684\u8bb0\u5fc6\u7ba1\u7406\u7b56\u7565\u3002<\/p>\n<ul data-id=\"u738a58b-bNfcaWA8\">\n<li data-id=\"ld70c578-GuhHNwe8\">\u8bb0\u5fc6\u7ee7\u627f\uff08\u9ed8\u8ba4\uff09\uff1a\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5b50\u56fe\u4f1a\u7ee7\u627f\u5176\u7236\u56fe\u7684checkpointer\u3002\u8fd9\u610f\u5473\u7740\u6574\u4e2a\u5d4c\u5957\u56fe\u5171\u4eab\u540c\u4e00\u4e2a\u5bf9\u8bdd\u72b6\u6001\uff0c\u6570\u636e\u53ef\u4ee5\u5728\u7236\u5b50\u56fe\u4e4b\u95f4\u65e0\u7f1d\u6d41\u52a8\u3002\u8fd9\u5bf9\u4e8e\u5c06\u4e00\u4e2a\u5927\u578b\u4efb\u52a1\u5206\u89e3\u4e3a\u591a\u4e2a\u6a21\u5757\u5316\u5b50\u4efb\u52a1\u975e\u5e38\u6709\u7528\u3002<\/li>\n<li data-id=\"ld70c578-P4Ekfs2B\">\u8bb0\u5fc6\u9694\u79bb\uff1a\u5728\u67d0\u4e9b\u573a\u666f\u4e0b\uff0c\u4f8b\u5982\u6784\u5efa\u591a\u667a\u80fd\u4f53\u7cfb\u7edf\uff0c\u5e0c\u671b\u6bcf\u4e2a\u667a\u80fd\u4f53\uff08\u7531\u4e00\u4e2a\u5b50\u56fe\u8868\u793a\uff09\u62e5\u6709\u81ea\u5df1\u72ec\u7acb\u7684\u5185\u5b58\u7a7a\u95f4\uff0c\u4e92\u4e0d\u5e72\u6270\u3002\u6b64\u65f6\uff0c\u53ef\u4ee5\u5728\u7f16\u8bd1\u5b50\u56fe\u65f6\u8bbe\u7f6echeckpointer=True\u3002<\/li>\n<\/ul>\n<p>\u5982\u4e0b\u4ee3\u7801\uff0c\u53ef\u4ee5\u5728\u5b50\u56fe\u4e2d\u76f4\u63a5\u4f7f\u7528\u7236\u56fe\u7684\u77ed\u671f\u8bb0\u5fc6\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_8\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">from langgraph<span class=\"token punctuation\">.<\/span>graph <span class=\"token keyword\">import<\/span> <span class=\"token constant\">START<\/span><span class=\"token punctuation\">,<\/span> StateGraph\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>checkpoint<span class=\"token punctuation\">.<\/span>memory <span class=\"token keyword\">import<\/span> InMemorySaver\r\nfrom typing <span class=\"token keyword\">import<\/span> TypedDict\r\n\r\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">State<\/span><span class=\"token punctuation\">(<\/span>TypedDict<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n    <span class=\"token literal-property property\">foo<\/span><span class=\"token operator\">:<\/span> str\r\n\r\n# \u5b50\u56fe\r\ndef <span class=\"token function\">subgraph_node_1<\/span><span class=\"token punctuation\">(<\/span>state<span class=\"token operator\">:<\/span> State<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n    <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"foo\"<\/span><span class=\"token operator\">:<\/span> state<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"foo\"<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\"bar\"<\/span><span class=\"token punctuation\">}<\/span>\r\n\r\nsubgraph_builder <span class=\"token operator\">=<\/span> <span class=\"token function\">StateGraph<\/span><span class=\"token punctuation\">(<\/span>State<span class=\"token punctuation\">)<\/span>\r\nsubgraph_builder<span class=\"token punctuation\">.<\/span><span class=\"token function\">add_node<\/span><span class=\"token punctuation\">(<\/span>subgraph_node_1<span class=\"token punctuation\">)<\/span>\r\nsubgraph_builder<span class=\"token punctuation\">.<\/span><span class=\"token function\">add_edge<\/span><span class=\"token punctuation\">(<\/span><span class=\"token constant\">START<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"subgraph_node_1\"<\/span><span class=\"token punctuation\">)<\/span>\r\nsubgraph <span class=\"token operator\">=<\/span> subgraph_builder<span class=\"token punctuation\">.<\/span><span class=\"token function\">compile<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>  \r\n\r\n# \u7236\u56fe\r\nbuilder <span class=\"token operator\">=<\/span> <span class=\"token function\">StateGraph<\/span><span class=\"token punctuation\">(<\/span>State<span class=\"token punctuation\">)<\/span>\r\nbuilder<span class=\"token punctuation\">.<\/span><span class=\"token function\">add_node<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"node_1\"<\/span><span class=\"token punctuation\">,<\/span> subgraph<span class=\"token punctuation\">)<\/span>  \r\nbuilder<span class=\"token punctuation\">.<\/span><span class=\"token function\">add_edge<\/span><span class=\"token punctuation\">(<\/span><span class=\"token constant\">START<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"node_1\"<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\ncheckpointer <span class=\"token operator\">=<\/span> <span class=\"token function\">InMemorySaver<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\ngraph <span class=\"token operator\">=<\/span> builder<span class=\"token punctuation\">.<\/span><span class=\"token function\">compile<\/span><span class=\"token punctuation\">(<\/span>checkpointer<span class=\"token operator\">=<\/span>checkpointer<span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_8\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<li>15.<\/li>\n<li>16.<\/li>\n<li>17.<\/li>\n<li>18.<\/li>\n<li>19.<\/li>\n<li>20.<\/li>\n<li>21.<\/li>\n<li>22.<\/li>\n<li>23.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u5982\u679c\u5b50\u56fe\u5e0c\u671b\u4f7f\u7528\u81ea\u5df1\u7684\u77ed\u671f\u8bb0\u5fc6\uff0c\u90a3\u4e48\u9700\u8981\u5728\u7f16\u8bd1\u5b50\u56fe\u65f6\uff0c\u663e\u793a\u4f20\u5165\u5b50\u56fe\u7684\u68c0\u67e5\u70b9\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_9\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">subgraph_builder <span class=\"token operator\">=<\/span> <span class=\"token function\">StateGraph<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">...<\/span><span class=\"token punctuation\">)<\/span>\r\nsubgraph <span class=\"token operator\">=<\/span> subgraph_builder<span class=\"token punctuation\">.<\/span><span class=\"token function\">compile<\/span><span class=\"token punctuation\">(<\/span>checkpointer<span class=\"token operator\">=<\/span>True<span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_9\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>(4) \u5de5\u5177\u4e2d\u7684\u8bb0\u5fc6\u4ea4\u4e92<\/strong><\/p>\n<p>\u2460 \u5728\u5de5\u5177\u4e2d\u8bfb\u53d6\u72b6\u6001\uff1a<\/p>\n<p>LangGraph\u5141\u8bb8\u5de5\u5177\u76f4\u63a5\u8bbf\u95ee\u548c\u8bfb\u53d6\u5f53\u524d\u7684\u56fe\u72b6\u6001\uff0c\u4f7f\u5176\u5177\u5907\u4e0a\u4e0b\u6587\u611f\u77e5\u80fd\u529b\u3002<\/p>\n<p>\u6838\u5fc3\u673a\u5236\uff1astate: Annotated[CustomState, InjectedState]\uff0cInjectedState\u7684\u4f5c\u7528\u662f\u5728\u8c03\u7528\u8fd9\u4e2a\u5de5\u5177\u65f6\uff0c\u5c06\u5f53\u524d\u7684\u5b8c\u6574\u72b6\u6001\u5bf9\u8c61\u4f5c\u4e3a\u7b2c\u4e00\u4e2a\u53c2\u6570\u4f20\u9012\u5230\u5de5\u5177\u4e2d\uff0c\u4f7f\u5f97\u8fd9\u4e2a\u5de5\u5177\u80fd\u6839\u636e\u5f53\u524d\u72b6\u6001\u6765\u6267\u884c\u66f4\u667a\u80fd\u7684\u64cd\u4f5c\u3002<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_10\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">from typing <span class=\"token keyword\">import<\/span> Annotated\r\nfrom langchain<span class=\"token punctuation\">.<\/span>chat_models <span class=\"token keyword\">import<\/span> init_chat_model\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>prebuilt <span class=\"token keyword\">import<\/span> InjectedState<span class=\"token punctuation\">,<\/span> create_react_agent\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>prebuilt<span class=\"token punctuation\">.<\/span>chat_agent_executor <span class=\"token keyword\">import<\/span> AgentState\r\n\r\n<span class=\"token constant\">BASE_URL<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n<span class=\"token constant\">TOKEN<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n<span class=\"token constant\">MODEL_NAME<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n\r\nmodel <span class=\"token operator\">=<\/span> <span class=\"token function\">init_chat_model<\/span><span class=\"token punctuation\">(<\/span>\r\n    model<span class=\"token operator\">=<\/span><span class=\"token constant\">MODEL_NAME<\/span><span class=\"token punctuation\">,<\/span>\r\n    model_provider<span class=\"token operator\">=<\/span><span class=\"token string\">\"openai\"<\/span><span class=\"token punctuation\">,<\/span> \r\n    base_url<span class=\"token operator\">=<\/span><span class=\"token constant\">BASE_URL<\/span><span class=\"token punctuation\">,<\/span>\r\n    api_key<span class=\"token operator\">=<\/span><span class=\"token constant\">TOKEN<\/span><span class=\"token punctuation\">,<\/span>\r\n    temperature<span class=\"token operator\">=<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">CustomState<\/span><span class=\"token punctuation\">(<\/span>AgentState<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n    <span class=\"token literal-property property\">user_id<\/span><span class=\"token operator\">:<\/span> str\r\n\r\ndef <span class=\"token function\">get_user_info<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token literal-property property\">state<\/span><span class=\"token operator\">:<\/span> Annotated<span class=\"token punctuation\">[<\/span>CustomState<span class=\"token punctuation\">,<\/span> InjectedState<span class=\"token punctuation\">]<\/span>\r\n<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-<\/span><span class=\"token operator\">&gt;<\/span> str<span class=\"token operator\">:<\/span>\r\n    <span class=\"token string\">\"\"<\/span><span class=\"token string\">\"\u67e5\u8be2\u7528\u6237\u4fe1\u606f\"<\/span><span class=\"token string\">\"\"<\/span>\r\n    user_id <span class=\"token operator\">=<\/span> state<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"user_id\"<\/span><span class=\"token punctuation\">]<\/span>\r\n    <span class=\"token keyword\">return<\/span><span class=\"token string\">\"ada\"<\/span><span class=\"token keyword\">if<\/span> state<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"user_id\"<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">==<\/span> <span class=\"token string\">\"user_ada\"<\/span><span class=\"token keyword\">else<\/span><span class=\"token string\">\"Unknown\"<\/span>\r\n\r\nagent <span class=\"token operator\">=<\/span> <span class=\"token function\">create_react_agent<\/span><span class=\"token punctuation\">(<\/span>\r\n    model<span class=\"token operator\">=<\/span>model<span class=\"token punctuation\">,<\/span>\r\n    tools<span class=\"token operator\">=<\/span><span class=\"token punctuation\">[<\/span>get_user_info<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>\r\n    state_schema<span class=\"token operator\">=<\/span>CustomState<span class=\"token punctuation\">,<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\nagent<span class=\"token punctuation\">.<\/span><span class=\"token function\">invoke<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span>\r\n    <span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u67e5\u8be2\u7528\u6237\u4fe1\u606f\"<\/span><span class=\"token punctuation\">,<\/span>\r\n    <span class=\"token string-property property\">\"user_id\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"user_ada\"<\/span>\r\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_10\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<li>15.<\/li>\n<li>16.<\/li>\n<li>17.<\/li>\n<li>18.<\/li>\n<li>19.<\/li>\n<li>20.<\/li>\n<li>21.<\/li>\n<li>22.<\/li>\n<li>23.<\/li>\n<li>24.<\/li>\n<li>25.<\/li>\n<li>26.<\/li>\n<li>27.<\/li>\n<li>28.<\/li>\n<li>29.<\/li>\n<li>30.<\/li>\n<li>31.<\/li>\n<li>32.<\/li>\n<li>33.<\/li>\n<li>34.<\/li>\n<li>35.<\/li>\n<li>36.<\/li>\n<li>37.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u8fd4\u56de\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_11\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">\u6839\u636e\u67e5\u8be2\u7ed3\u679c\uff0c\u60a8\u7684\u7528\u6237\u4fe1\u606f\u663e\u793a\u7528\u6237\u540d\u4e3a\uff1a<span class=\"token operator\">**<\/span>ada<span class=\"token operator\">**<\/span>\\n\\n\u8fd9\u662f\u60a8\u7684\u7528\u6237\u4fe1\u606f\u67e5\u8be2\u7ed3\u679c\u3002\u5982\u679c\u60a8\u9700\u8981\u4e86\u89e3\u5176\u4ed6\u4fe1\u606f\u6216\u6709\u5176\u4ed6\u9700\u6c42\uff0c\u8bf7\u544a\u8bc9\u6211\u3002<\/code><\/pre>\n<ul id=\"code_id_11\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u2461 \u5728\u5de5\u5177\u4e2d\u5199\u5165\u72b6\u6001\uff1a<\/p>\n<p>\u5982\u679c\u8981\u5728\u5de5\u5177\u6267\u884c\u671f\u95f4\u4fee\u6539\u56fe\u7684\u8bb0\u5fc6\uff0c\u90a3\u4e48\u53ef\u4ee5\u76f4\u63a5\u4ece\u5de5\u5177\u8fd4\u56de\u72b6\u6001\u66f4\u65b0\u3002\u8fd9\u5bf9\u4e8e\u6301\u4e45\u5316\u4e2d\u95f4\u7ed3\u679c\u3001\u4f20\u9012\u4fe1\u606f\u7ed9\u540e\u7eed\u5de5\u5177\u7b49\u975e\u5e38\u6709\u7528\u3002<\/p>\n<p>\u6838\u5fc3\u673a\u5236\uff1a\u5de5\u5177\u8fd4\u56deCommand\u5bf9\u8c61\u3002\u6b64\u65f6\uff0cLangGraph\u4f1a\u5c06\u5176\u8fd4\u56de\u503c\u89e3\u91ca\u4e3a\u5bf9\u72b6\u6001\u7684\u76f4\u63a5\u4fee\u6539\u6307\u4ee4\u3002Command(update={&#8230;})\u4e2d\u7684\u5b57\u5178\u5b9a\u4e49\u4e86\u8981\u66f4\u65b0\u7684\u72b6\u6001\u5b57\u6bb5\u53ca\u5176\u65b0\u503c\u3002\u8fd9\u5141\u8bb8\u5de5\u5177\u5728\u5b8c\u6210\u5176\u4e3b\u8981\u4efb\u52a1\u7684\u540c\u65f6\uff0c\u5c06\u7ed3\u679c\u5199\u56de\u667a\u80fd\u4f53\u7684\u77ed\u671f\u8bb0\u5fc6\u4e2d\uff0c\u4ece\u800c\u5f71\u54cd\u540e\u7eed\u7684\u51b3\u7b56\u3002<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_12\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">from typing <span class=\"token keyword\">import<\/span> Annotated\r\nfrom langchain_core<span class=\"token punctuation\">.<\/span>tools <span class=\"token keyword\">import<\/span> InjectedToolCallId\r\nfrom langchain_core<span class=\"token punctuation\">.<\/span>runnables <span class=\"token keyword\">import<\/span> RunnableConfig\r\nfrom langchain_core<span class=\"token punctuation\">.<\/span>messages <span class=\"token keyword\">import<\/span> ToolMessage\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>prebuilt <span class=\"token keyword\">import<\/span> InjectedState<span class=\"token punctuation\">,<\/span> create_react_agent\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>prebuilt<span class=\"token punctuation\">.<\/span>chat_agent_executor <span class=\"token keyword\">import<\/span> AgentState\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>types <span class=\"token keyword\">import<\/span> Command\r\n\r\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">CustomState<\/span><span class=\"token punctuation\">(<\/span>AgentState<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n    <span class=\"token literal-property property\">user_name<\/span><span class=\"token operator\">:<\/span> str\r\n\r\ndef <span class=\"token function\">update_user_info<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token literal-property property\">tool_call_id<\/span><span class=\"token operator\">:<\/span> Annotated<span class=\"token punctuation\">[<\/span>str<span class=\"token punctuation\">,<\/span> InjectedToolCallId<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>\r\n    <span class=\"token literal-property property\">config<\/span><span class=\"token operator\">:<\/span> RunnableConfig\r\n<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-<\/span><span class=\"token operator\">&gt;<\/span> Command<span class=\"token operator\">:<\/span>\r\n    <span class=\"token string\">\"\"<\/span><span class=\"token string\">\"\u67e5\u8be2\u5e76\u66f4\u65b0\u7528\u6237\u4fe1\u606f\"<\/span><span class=\"token string\">\"\"<\/span>\r\n    user_id <span class=\"token operator\">=<\/span> config<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"configurable\"<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"user_id\"<\/span><span class=\"token punctuation\">)<\/span>\r\n    name <span class=\"token operator\">=<\/span> <span class=\"token string\">\"ada\"<\/span><span class=\"token keyword\">if<\/span> user_id <span class=\"token operator\">==<\/span> <span class=\"token string\">\"user_123\"<\/span><span class=\"token keyword\">else<\/span><span class=\"token string\">\"Unknown user\"<\/span>\r\n    <span class=\"token keyword\">return<\/span> <span class=\"token function\">Command<\/span><span class=\"token punctuation\">(<\/span>update<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>\r\n   <span class=\"token string-property property\">\"user_name\"<\/span><span class=\"token operator\">:<\/span> name<span class=\"token punctuation\">,<\/span>\r\n   # \u66f4\u65b0\u6d88\u606f\u5386\u53f2\u8bb0\u5f55\r\n   <span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span>\r\n<span class=\"token function\">ToolMessage<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token string\">\"\u6210\u529f\u67e5\u8be2\u5230\u7528\u6237\u4fe1\u606f\"<\/span><span class=\"token punctuation\">,<\/span>\r\n    tool_call_id<span class=\"token operator\">=<\/span>tool_call_id\r\n<span class=\"token punctuation\">)<\/span>\r\n   <span class=\"token punctuation\">]<\/span>\r\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\ndef <span class=\"token function\">greet<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token literal-property property\">state<\/span><span class=\"token operator\">:<\/span> Annotated<span class=\"token punctuation\">[<\/span>CustomState<span class=\"token punctuation\">,<\/span> InjectedState<span class=\"token punctuation\">]<\/span>\r\n<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-<\/span><span class=\"token operator\">&gt;<\/span> str<span class=\"token operator\">:<\/span>\r\n    <span class=\"token string\">\"\"<\/span><span class=\"token string\">\"\u627e\u5230\u7528\u6237\u4fe1\u606f\u540e\uff0c\u4f7f\u7528\u6b64\u65b9\u5f0f\u5411\u7528\u6237\u95ee\u597d\u3002\"<\/span><span class=\"token string\">\"\"<\/span>\r\n    user_name <span class=\"token operator\">=<\/span> state<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"user_name\"<\/span><span class=\"token punctuation\">]<\/span>\r\n    <span class=\"token keyword\">return<\/span> f<span class=\"token string\">\"\u4f60\u597d {user_name}\uff01\"<\/span>\r\n\r\nagent <span class=\"token operator\">=<\/span> <span class=\"token function\">create_react_agent<\/span><span class=\"token punctuation\">(<\/span>\r\n    model<span class=\"token operator\">=<\/span>model<span class=\"token punctuation\">,<\/span>\r\n    tools<span class=\"token operator\">=<\/span><span class=\"token punctuation\">[<\/span>update_user_info<span class=\"token punctuation\">,<\/span> greet<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>\r\n    state_schema<span class=\"token operator\">=<\/span>CustomState\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\nagent<span class=\"token punctuation\">.<\/span><span class=\"token function\">invoke<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"role\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"user\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string-property property\">\"content\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u5411\u7528\u6237\u6253\u62db\u547c\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\r\n    cnotallow<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"configurable\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"user_id\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"user_123\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">}<\/span>\r\n<span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_12\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<li>15.<\/li>\n<li>16.<\/li>\n<li>17.<\/li>\n<li>18.<\/li>\n<li>19.<\/li>\n<li>20.<\/li>\n<li>21.<\/li>\n<li>22.<\/li>\n<li>23.<\/li>\n<li>24.<\/li>\n<li>25.<\/li>\n<li>26.<\/li>\n<li>27.<\/li>\n<li>28.<\/li>\n<li>29.<\/li>\n<li>30.<\/li>\n<li>31.<\/li>\n<li>32.<\/li>\n<li>33.<\/li>\n<li>34.<\/li>\n<li>35.<\/li>\n<li>36.<\/li>\n<li>37.<\/li>\n<li>38.<\/li>\n<li>39.<\/li>\n<li>40.<\/li>\n<li>41.<\/li>\n<li>42.<\/li>\n<li>43.<\/li>\n<li>44.<\/li>\n<li>45.<\/li>\n<li>46.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u8f93\u51fa\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/s2.51cto.com\/oss\/202512\/10\/620a20c4443afffa6820252856ac9b091506b2.webp\" data-type=\"block\" \/><\/p>\n<p><img data-dominant-color=\"1b1f2f\" data-has-transparency=\"true\" style=\"--dominant-color: #1b1f2f;\" loading=\"lazy\" decoding=\"async\" class=\"has-transparency alignnone size-full wp-image-28413\" src=\"https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/12\/a8cc0ad56db1d8a005843342525855b10c0b66.png\" width=\"150\" height=\"150\" \/><\/p>\n<h4>3. \u957f\u671f\u8bb0\u5fc6\u8be6\u89e3<\/h4>\n<p>LangGraph\u4e2d\u7684\u957f\u671f\u8bb0\u5fc6\u5141\u8bb8\u7cfb\u7edf\u5728\u4e0d\u540c\u5bf9\u8bdd\u4e2d\u4fdd\u7559\u4fe1\u606f\uff0c\u662f\u8de8\u5bf9\u8bdd\u7ebf\u7a0b\u5171\u4eab\u7684\uff0c\u53ef\u4ee5\u5728\u4efb\u4f55\u65f6\u95f4\u3001\u4efb\u4f55\u7ebf\u7a0b\u4e2d\u88ab\u56de\u5fc6\u3002\u4e0e\u77ed\u671f\u8bb0\u5fc6\u4e0d\u540c\uff0c\u957f\u671f\u8bb0\u5fc6\u4fdd\u5b58\u5728\u81ea\u5b9a\u4e49\u7684\u547d\u540d\u7a7a\u95f4\u4e2d\uff0c\u6bcf\u4e2a\u8bb0\u5fc6\u90fd\u7ec4\u7ec7\u5728\u4e00\u4e2a\u81ea\u5b9a\u4e49\u7684namespace\u548c\u4e00\u4e2a\u552f\u4e00\u7684key\u4e0b\u3002<\/p>\n<p>\u8bb0\u5fc6\u5b58\u50a8\uff1aLangGraph\u5c06\u957f\u671f\u8bb0\u5fc6\u5b58\u50a8\u4e3aJSON\u6587\u6863\uff0c\u4f7f\u7528Store\u8fdb\u884c\u7ba1\u7406\uff0c\u5141\u8bb8\u5b58\u50a8\u7ed3\u6784\u5316\u548c\u975e\u7ed3\u6784\u5316\u7684\u6570\u636e\u3002<\/p>\n<p>\u8bb0\u5fc6\u66f4\u65b0\u65f6\u673a\uff1a<\/p>\n<ul data-id=\"u738a58b-fnIsDLPI\">\n<li data-id=\"ld70c578-RSzgkVCR\">\u70ed\u8def\u5f84\uff08Hot Path\uff09\uff1a\u5728\u5e94\u7528\u7a0b\u5e8f\u903b\u8f91\u8fd0\u884c\u65f6\u5b9e\u65f6\u521b\u5efa\u8bb0\u5fc6\uff08store.put()\uff09\uff0c\u4f18\u70b9\u662f\u5b9e\u65f6\u66f4\u65b0\uff0c\u4f46\u53ef\u80fd\u589e\u52a0\u7a0b\u5e8f\u590d\u6742\u6027\u3001\u5ef6\u8fdf\u7b49\u95ee\u9898\u3002<\/li>\n<li data-id=\"ld70c578-KrMt8WA6\">\u540e\u53f0\uff08Background\uff09\uff1a\u4f5c\u4e3a\u5355\u72ec\u7684\u5f02\u6b65\u4efb\u52a1\u521b\u5efa\u8bb0\u5fc6\uff08store.put()\uff09\uff0c\u4f18\u70b9\u662f\u907f\u514d\u4e3b\u5e94\u7528\u5ef6\u8fdf\u3001\u903b\u8f91\u5206\u79bb\uff0c\u96be\u70b9\u5728\u4e8e\u786e\u5b9a\u66f4\u65b0\u9891\u7387\u548c\u89e6\u53d1\u65f6\u673a\u3002<\/li>\n<\/ul>\n<p>\u8bb0\u5fc6\u68c0\u7d22\uff1a<\/p>\n<ul data-id=\"u738a58b-fAlN55kR\">\n<li data-id=\"ld70c578-LqtgvAN8\">store.get()\uff1a\u6839\u636e\u547d\u540d\u7a7a\u95f4\u548c\u952e\u7cbe\u786e\u83b7\u53d6\u8bb0\u5fc6\u3002<\/li>\n<li data-id=\"ld70c578-rbwYrp7Y\">store.search()\uff1a\u5728\u6307\u5b9a\u547d\u540d\u7a7a\u95f4\u5185\u5b9e\u73b0\u7075\u6d3b\u8bb0\u5fc6\u68c0\u7d22\uff0c\u4e0d\u4f46\u53ef\u4ee5\u901a\u8fc7\u547d\u540d\u7a7a\u95f4\u548c\u6807\u8bc6\u7b26\uff0c\u66f4\u53ef\u4ee5\u901a\u8fc7\u8bed\u4e49\u68c0\u7d22\u5230\u8bb0\u5fc6\u5185\u5bb9\u3002\u901a\u5e38\u9700\u8981Store\u914d\u7f6e\u4e00\u4e2aembed\u6765\u652f\u6301\u8bed\u4e49\u641c\u7d22\u3002<\/li>\n<\/ul>\n<p>\u8bb0\u5fc6\u7684\u5e94\u7528\uff1a<\/p>\n<ul data-id=\"u738a58b-LmMHabV4\">\n<li data-id=\"ld70c578-j1hSBJq2\">\u8bed\u4e49\u8bb0\u5fc6\uff1a\u5b58\u50a8\u4e8b\u5b9e\u548c\u6982\u5ff5\u3002\u5206\u4e3a\u4ee5\u4e0b\u4e24\u79cd\u60c5\u51b5\uff1aProfile\uff1a\u5c06\u5173\u4e8e\u7528\u6237\u3001\u7ec4\u7ec7\u6216\u4ee3\u7406\u81ea\u8eab\u7684\u7279\u5b9a\u4fe1\u606f\u5b58\u50a8\u4e3a\u4e00\u4e2a\u6301\u7eed\u66f4\u65b0\u7684JSON\u6587\u6863\uff0c\u9700\u8981\u6a21\u578b\u6765\u751f\u6210\u65b0\u7684Profile\u6216\u66f4\u65b0\u5df2\u6709JSON\u6863\u6848\uff1bCollection\uff1a\u5c06\u8bb0\u5fc6\u5b58\u50a8\u4e3a\u4e00\u7ec4\u72ec\u7acb\u7684\u6587\u6863\uff0c\u6613\u4e8e\u751f\u6210\uff0c\u4f46\u68c0\u7d22\u548c\u66f4\u65b0\u8f83\u4e3a\u590d\u6742\uff0c\u4e14\u53ef\u80fd\u96be\u4ee5\u6355\u83b7\u8bb0\u5fc6\u95f4\u7684\u5b8c\u6574\u4e0a\u4e0b\u6587\u3002\u5728\u5e94\u7528\u65f6\uff0c\u53ef\u4ee5\u5c06\u68c0\u7d22\u5230\u7684\u8bb0\u5fc6\u4f5c\u4e3a\u4e0a\u4e0b\u6587\u6216\u7cfb\u7edf\u6307\u4ee4\u7684\u4e00\u90e8\u5206\u4f20\u9012\u7ed9LLM\uff0c\u7528\u4e8e\u4e2a\u6027\u5316\u54cd\u5e94\u548c\u56de\u7b54\u4e8b\u5b9e\u6027\u95ee\u9898\u3002<\/li>\n<li data-id=\"ld70c578-ozjthMKg\">\u60c5\u666f\u8bb0\u5fc6\uff1a\u5b58\u50a8\u8fc7\u53bb\u7684\u4e8b\u4ef6\u6216\u884c\u4e3a\u7ecf\u9a8c\u3002\u901a\u5e38\u901a\u8fc7few-shot example prompt\u6765\u5b9e\u73b0\uff0c\u4ee5\u6307\u5bfc\u6a21\u578b\u5b8c\u6210\u4efb\u52a1\u3002<\/li>\n<li data-id=\"ld70c578-1MOgwvAs\">\u7a0b\u5e8f\u8bb0\u5fc6\uff1a\u5b58\u50a8\u6267\u884c\u4efb\u52a1\u7684\u89c4\u5219\u6216\u6307\u4ee4\u3002\u901a\u5e38\u901a\u8fc7\u4fee\u6539\u4ee3\u7801\u81ea\u8eab\u7684prompt\u6765\u5b9e\u73b0\uff0c\u5c06\u5176\u5e94\u7528\u4e8eLLM\u3002<\/li>\n<\/ul>\n<p><strong>(1) InMemoryStore<\/strong><\/p>\n<p>\u4e0eCheckpointer\u7c7b\u4f3c\uff0cInMemoryStore\u7528\u4e8e\u5feb\u901f\u5f00\u53d1\u548c\u539f\u578b\u9a8c\u8bc1\u3002\u5b83\u5c06\u6240\u6709\u6570\u636e\u5b58\u50a8\u5728\u5185\u5b58\u4e2d\u3002<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_13\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">from langchain<span class=\"token punctuation\">.<\/span>chat_models <span class=\"token keyword\">import<\/span> init_chat_model\r\nfrom langchain_core<span class=\"token punctuation\">.<\/span>runnables <span class=\"token keyword\">import<\/span> RunnableConfig\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>store<span class=\"token punctuation\">.<\/span>memory <span class=\"token keyword\">import<\/span> InMemoryStore\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>config <span class=\"token keyword\">import<\/span> get_store\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>prebuilt <span class=\"token keyword\">import<\/span> create_react_agent\r\n\r\nstore <span class=\"token operator\">=<\/span> <span class=\"token function\">InMemoryStore<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\n<span class=\"token constant\">BASE_URL<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n<span class=\"token constant\">TOKEN<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n<span class=\"token constant\">MODEL_NAME<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n\r\nmodel <span class=\"token operator\">=<\/span> <span class=\"token function\">init_chat_model<\/span><span class=\"token punctuation\">(<\/span>\r\n    model<span class=\"token operator\">=<\/span><span class=\"token constant\">MODEL_NAME<\/span><span class=\"token punctuation\">,<\/span>\r\n    model_provider<span class=\"token operator\">=<\/span><span class=\"token string\">\"openai\"<\/span><span class=\"token punctuation\">,<\/span> \r\n    base_url<span class=\"token operator\">=<\/span><span class=\"token constant\">BASE_URL<\/span><span class=\"token punctuation\">,<\/span>\r\n    api_key<span class=\"token operator\">=<\/span><span class=\"token constant\">TOKEN<\/span><span class=\"token punctuation\">,<\/span>\r\n    temperature<span class=\"token operator\">=<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\nstore<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token punctuation\">(<\/span><span class=\"token string\">\"users\"<\/span><span class=\"token punctuation\">,<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>  # \u547d\u540d\u7a7a\u95f4\uff1a\u5143\u7ec4\u7c7b\u578b\uff0c\u7c7b\u6bd4\u6587\u4ef6\u7cfb\u7edf\u4e2d\u7684\u6587\u4ef6\u5939\uff0c\u652f\u6301\u5206\u5c42\u7ec4\u7ec7\u7ed3\u6784\r\n    <span class=\"token string\">\"user_123\"<\/span><span class=\"token punctuation\">,<\/span>  # \u952e<span class=\"token operator\">:<\/span> \u5b57\u7b26\u4e32\uff0c\u662f\u547d\u540d\u7a7a\u95f4\u5185\u7684\u552f\u4e00\u6807\u8bc6\u7b26\uff0c\u4e00\u822c\u63a8\u8350\u4f7f\u7528uuid\u5e93\u751f\u6210\u552f\u4e00\u6807\u8bc6\u7b26\r\n    <span class=\"token punctuation\">{<\/span>\r\n   <span class=\"token string-property property\">\"name\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"ada\"<\/span><span class=\"token punctuation\">,<\/span>\r\n   <span class=\"token string-property property\">\"language\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u4e2d\u6587\"<\/span><span class=\"token punctuation\">,<\/span>\r\n    <span class=\"token punctuation\">}<\/span>  # \u503c\uff1aPython\u5b57\u5178\u7c7b\u578b\uff0c\u6bd4\u5982\u4fdd\u5b58\u516c\u5171\u89d2\u8272\u8d44\u6599\u65f6\u53ef\u4ee5\u662f\u5305\u542b\u59d3\u540d\u3001\u504f\u597d\u7b49\u952e\u503c\u5bf9\u7684\u5b57\u5178\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\ndef <span class=\"token function\">get_user_info<\/span><span class=\"token punctuation\">(<\/span>config<span class=\"token operator\">:<\/span> RunnableConfig<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-<\/span><span class=\"token operator\">&gt;<\/span> str<span class=\"token operator\">:<\/span>\r\n    <span class=\"token string\">\"\"<\/span><span class=\"token string\">\"\u67e5\u627e\u7528\u6237\u4fe1\u606f\u7684\u51fd\u6570\uff0c\u53ef\u4ee5\u67e5\u770b\u957f\u671f\u8bb0\u5fc6\u4e2d\u50a8\u5b58\u7684\u7528\u6237\u4fe1\u606f\"<\/span><span class=\"token string\">\"\"<\/span>\r\n    store <span class=\"token operator\">=<\/span> <span class=\"token function\">get_store<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>  # \u83b7\u53d6\u4e0a\u4e0b\u6587\u4e2d\u53ef\u7528\u7684store\u5b9e\u4f8b\r\n    user_id <span class=\"token operator\">=<\/span> config<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"configurable\"<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"user_id\"<\/span><span class=\"token punctuation\">)<\/span>\r\n    user_info <span class=\"token operator\">=<\/span> store<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"users\"<\/span><span class=\"token punctuation\">,<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> user_id<span class=\"token punctuation\">)<\/span>  # \u8f93\u5165\u547d\u540d\u7a7a\u95f4\u548c\u952e\u8fdb\u884c\u7cbe\u786e\u67e5\u8be2\r\n    <span class=\"token keyword\">return<\/span> <span class=\"token function\">str<\/span><span class=\"token punctuation\">(<\/span>user_info<span class=\"token punctuation\">.<\/span>value<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">if<\/span> user_info <span class=\"token keyword\">else<\/span><span class=\"token string\">\"Unknown user\"<\/span>\r\n\r\nagent <span class=\"token operator\">=<\/span> <span class=\"token function\">create_react_agent<\/span><span class=\"token punctuation\">(<\/span>\r\n    model<span class=\"token operator\">=<\/span>model<span class=\"token punctuation\">,<\/span>\r\n    tools<span class=\"token operator\">=<\/span><span class=\"token punctuation\">[<\/span>get_user_info<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>\r\n    # \u4f20\u5165store\r\n    store<span class=\"token operator\">=<\/span>store\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\nresponse <span class=\"token operator\">=<\/span> agent<span class=\"token punctuation\">.<\/span><span class=\"token function\">invoke<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"role\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"user\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string-property property\">\"content\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u5e2e\u6211\u67e5\u627e\u957f\u671f\u8bb0\u5fc6\u4e2d\u50a8\u5b58\u7684\u7528\u6237\u4fe1\u606f\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\r\n    cnotallow<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"configurable\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"user_id\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"user_123\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">}<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\n<span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>response<span class=\"token punctuation\">[<\/span><span class=\"token string\">'messages'<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_13\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<li>15.<\/li>\n<li>16.<\/li>\n<li>17.<\/li>\n<li>18.<\/li>\n<li>19.<\/li>\n<li>20.<\/li>\n<li>21.<\/li>\n<li>22.<\/li>\n<li>23.<\/li>\n<li>24.<\/li>\n<li>25.<\/li>\n<li>26.<\/li>\n<li>27.<\/li>\n<li>28.<\/li>\n<li>29.<\/li>\n<li>30.<\/li>\n<li>31.<\/li>\n<li>32.<\/li>\n<li>33.<\/li>\n<li>34.<\/li>\n<li>35.<\/li>\n<li>36.<\/li>\n<li>37.<\/li>\n<li>38.<\/li>\n<li>39.<\/li>\n<li>40.<\/li>\n<li>41.<\/li>\n<li>42.<\/li>\n<li>43.<\/li>\n<li>44.<\/li>\n<li>45.<\/li>\n<li>46.<\/li>\n<li>47.<\/li>\n<li>48.<\/li>\n<li>49.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u8f93\u51fa\u7ed3\u679c\u5982\u4e0b\uff0c\u53ef\u4ee5\u770b\u5230\u5728\u5de5\u5177\u51fd\u6570\u4e2d\u6210\u529f\u8c03\u7528store\u67e5\u627e\u5230\u4e86\u4fdd\u5b58\u7684\u7528\u6237\u4fe1\u606f\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/s2.51cto.com\/oss\/202512\/10\/7170d7c5961f79535799711bea61d0c53fd2aa.webp\" data-type=\"block\" \/><\/p>\n<p><strong>(2) \u6570\u636e\u5e93\u6301\u4e45\u5316\u5b58\u50a8<\/strong><\/p>\n<p>\u4e3a\u4e86\u8ba9\u8bb0\u5fc6\u771f\u6b63\u201d\u957f\u671f\u201c\uff0c\u751f\u4ea7\u73af\u5883\u5fc5\u987b\u4f7f\u7528\u6570\u636e\u5e93\u652f\u6301\u7684Store\uff0cLangGraph\u76ee\u524d\u4e3b\u8981\u652f\u6301PostgresStore\u548cRedisStore\u3002\u6211\u4eec\u4ee5PostgresStore\u4e3a\u4f8b\u6765\u8fdb\u884c\u8bf4\u660e\u3002<\/p>\n<p>\u2460 \u9996\u5148\uff0c\u5148\u5b89\u88c5\u5bf9\u5e94\u7684\u5305\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_14\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">pip install <span class=\"token operator\">-<\/span><span class=\"token constant\">U<\/span> <span class=\"token string\">\"psycopg[binary,pool]\"<\/span> langgraph<span class=\"token operator\">-<\/span>checkpoint<span class=\"token operator\">-<\/span>postgres<\/code><\/pre>\n<ul id=\"code_id_14\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u2461 Postgres\u6570\u636e\u5e93\u7684\u5b89\u88c5\uff0c\u8bf7\u53c2\u8003\u4e0a\u6587\u3002<\/p>\n<p>\u2462\u00a0\u63a5\u4e0b\u6765\u8fdb\u884c\u793a\u4f8b\u8bf4\u660e\u3002\u6574\u4f53\u8fc7\u7a0b\u4e0eCheckpointer\u7c7b\u4f3c\uff0c\u5173\u952e\u533a\u522b\u5728\u4e8eStore\u662f\u600e\u6837\u5728\u8282\u70b9\u5185\u90e8\u88ab\u8bbf\u95ee\u548c\u4f7f\u7528\u7684\u3002<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_15\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\"><span class=\"token keyword\">import<\/span> uuid\r\nfrom langchain<span class=\"token punctuation\">.<\/span>chat_models <span class=\"token keyword\">import<\/span> init_chat_model\r\nfrom langchain_core<span class=\"token punctuation\">.<\/span>runnables <span class=\"token keyword\">import<\/span> RunnableConfig\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>graph <span class=\"token keyword\">import<\/span> StateGraph<span class=\"token punctuation\">,<\/span> MessagesState<span class=\"token punctuation\">,<\/span> <span class=\"token constant\">START<\/span>\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>store<span class=\"token punctuation\">.<\/span>base <span class=\"token keyword\">import<\/span> BaseStore\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>store<span class=\"token punctuation\">.<\/span>postgres <span class=\"token keyword\">import<\/span> PostgresStore\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>checkpoint<span class=\"token punctuation\">.<\/span>postgres <span class=\"token keyword\">import<\/span> PostgresSaver\r\n\r\n<span class=\"token constant\">BASE_URL<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n<span class=\"token constant\">TOKEN<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n<span class=\"token constant\">MODEL_NAME<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n\r\nmodel <span class=\"token operator\">=<\/span> <span class=\"token function\">init_chat_model<\/span><span class=\"token punctuation\">(<\/span>\r\n    model<span class=\"token operator\">=<\/span><span class=\"token constant\">MODEL_NAME<\/span><span class=\"token punctuation\">,<\/span>\r\n    model_provider<span class=\"token operator\">=<\/span><span class=\"token string\">\"openai\"<\/span><span class=\"token punctuation\">,<\/span> \r\n    base_url<span class=\"token operator\">=<\/span><span class=\"token constant\">BASE_URL<\/span><span class=\"token punctuation\">,<\/span>\r\n    api_key<span class=\"token operator\">=<\/span><span class=\"token constant\">TOKEN<\/span><span class=\"token punctuation\">,<\/span>\r\n    temperature<span class=\"token operator\">=<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\n<span class=\"token constant\">DB_URI<\/span> <span class=\"token operator\">=<\/span> <span class=\"token string\">\"postgresql:\/\/postgres:postgres@localhost:5432\/postgres?sslmode=disable\"<\/span>\r\n\r\n<span class=\"token keyword\">with<\/span> <span class=\"token punctuation\">(<\/span>\r\n    PostgresStore<span class=\"token punctuation\">.<\/span><span class=\"token function\">from_conn_string<\/span><span class=\"token punctuation\">(<\/span><span class=\"token constant\">DB_URI<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">as<\/span> store<span class=\"token punctuation\">,<\/span>\r\n    PostgresSaver<span class=\"token punctuation\">.<\/span><span class=\"token function\">from_conn_string<\/span><span class=\"token punctuation\">(<\/span><span class=\"token constant\">DB_URI<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">as<\/span> checkpointer<span class=\"token punctuation\">,<\/span>\r\n<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n    store<span class=\"token punctuation\">.<\/span><span class=\"token function\">setup<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>  # <span class=\"token function\">\u7b2c\u4e00\u6b21\u8c03\u7528\u65f6\u5fc5\u987b\u8981setup<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n#checkpointer<span class=\"token punctuation\">.<\/span><span class=\"token function\">setup<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n    \r\n    # \u58f0\u660estore\u53c2\u6570\r\n    def <span class=\"token function\">call_model<\/span><span class=\"token punctuation\">(<\/span>\r\n   <span class=\"token literal-property property\">state<\/span><span class=\"token operator\">:<\/span> MessagesState<span class=\"token punctuation\">,<\/span>\r\n   <span class=\"token literal-property property\">config<\/span><span class=\"token operator\">:<\/span> RunnableConfig<span class=\"token punctuation\">,<\/span> \r\n   <span class=\"token operator\">*<\/span><span class=\"token punctuation\">,<\/span>\r\n   <span class=\"token literal-property property\">store<\/span><span class=\"token operator\">:<\/span> BaseStore<span class=\"token punctuation\">,<\/span>  # \u5728\u8282\u70b9\u4e2d\u8bbf\u95eestore\u7684\u6807\u51c6\u65b9\u5f0f\uff0c\u9700\u8981\u5728\u51fd\u6570\u7b7e\u540d\u4e0a\uff0c\u52a0\u4e00\u4e2astore\r\n    <span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n   # \u4ecestore\u4e2d\u8bfb\u53d6\u8bb0\u5fc6\r\n   user_id <span class=\"token operator\">=<\/span> config<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"configurable\"<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string\">\"user_id\"<\/span><span class=\"token punctuation\">]<\/span>\r\n   namespace <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token string\">\"memories\"<\/span><span class=\"token punctuation\">,<\/span> user_id<span class=\"token punctuation\">)<\/span>\r\n   memories <span class=\"token operator\">=<\/span> store<span class=\"token punctuation\">.<\/span><span class=\"token function\">search<\/span><span class=\"token punctuation\">(<\/span>namespace<span class=\"token punctuation\">,<\/span> query<span class=\"token operator\">=<\/span><span class=\"token function\">str<\/span><span class=\"token punctuation\">(<\/span>state<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"messages\"<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span><span class=\"token operator\">-<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>content<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\r\n   info <span class=\"token operator\">=<\/span> <span class=\"token string\">\"\\n\"<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span>d<span class=\"token punctuation\">.<\/span>value<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"data\"<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token keyword\">for<\/span> d <span class=\"token keyword\">in<\/span> memories<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span>\r\n   system_msg <span class=\"token operator\">=<\/span> f<span class=\"token string\">\"\u4f60\u662f\u4e00\u4e2a\u4e0e\u4eba\u7c7b\u4ea4\u6d41\u7684\u5c0f\u52a9\u624b\uff0c\u7528\u6237\u4fe1\u606f: {info}\"<\/span>\r\n   \r\n   # \u5411store\u4e2d\u5199\u5165\u8bb0\u5fc6\r\n   last_message <span class=\"token operator\">=<\/span> state<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"messages\"<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span><span class=\"token operator\">-<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span>\r\n   <span class=\"token keyword\">if<\/span><span class=\"token string\">\"\u8bb0\u4f4f\"<\/span><span class=\"token keyword\">in<\/span> last_message<span class=\"token punctuation\">.<\/span>content<span class=\"token punctuation\">.<\/span><span class=\"token function\">lower<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\nmemory <span class=\"token operator\">=<\/span> <span class=\"token string\">\"\u7528\u6237\u540d\u5b57\u662fada\"<\/span>\r\nstore<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span>namespace<span class=\"token punctuation\">,<\/span> <span class=\"token function\">str<\/span><span class=\"token punctuation\">(<\/span>uuid<span class=\"token punctuation\">.<\/span><span class=\"token function\">uuid4<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"data\"<\/span><span class=\"token operator\">:<\/span> memory<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span>\r\n   \r\n   response <span class=\"token operator\">=<\/span> model<span class=\"token punctuation\">.<\/span><span class=\"token function\">invoke<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"role\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"system\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string-property property\">\"content\"<\/span><span class=\"token operator\">:<\/span> system_msg<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">+<\/span> state<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"messages\"<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span>\r\n   <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> response<span class=\"token punctuation\">}<\/span>\r\n    \r\n    builder <span class=\"token operator\">=<\/span> <span class=\"token function\">StateGraph<\/span><span class=\"token punctuation\">(<\/span>MessagesState<span class=\"token punctuation\">)<\/span>\r\n    builder<span class=\"token punctuation\">.<\/span><span class=\"token function\">add_node<\/span><span class=\"token punctuation\">(<\/span>call_model<span class=\"token punctuation\">)<\/span>\r\n    builder<span class=\"token punctuation\">.<\/span><span class=\"token function\">add_edge<\/span><span class=\"token punctuation\">(<\/span><span class=\"token constant\">START<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"call_model\"<\/span><span class=\"token punctuation\">)<\/span>\r\n    \r\n    graph <span class=\"token operator\">=<\/span> builder<span class=\"token punctuation\">.<\/span><span class=\"token function\">compile<\/span><span class=\"token punctuation\">(<\/span>checkpointer<span class=\"token operator\">=<\/span>checkpointer<span class=\"token punctuation\">,<\/span> store<span class=\"token operator\">=<\/span>store<span class=\"token punctuation\">)<\/span>  # agent\u540c\u65f6\u914d\u5907\u4e86\u77ed\u671f\u8bb0\u5fc6\u548c\u957f\u671f\u8bb0\u5fc6\u80fd\u529b\r\n    \r\n    # \u7b2c\u4e00\u6b21\u5bf9\u8bdd\uff0c\u544a\u8bc9agent\u7528\u6237\u7684\u540d\u5b57\r\n    config <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">{<\/span>\r\n   <span class=\"token string-property property\">\"configurable\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span>\r\n<span class=\"token string-property property\">\"thread_id\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"3\"<\/span><span class=\"token punctuation\">,<\/span>\r\n<span class=\"token string-property property\">\"user_id\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"1\"<\/span><span class=\"token punctuation\">,<\/span>\r\n   <span class=\"token punctuation\">}<\/span>\r\n    <span class=\"token punctuation\">}<\/span>\r\n\r\n    response <span class=\"token operator\">=<\/span> graph<span class=\"token punctuation\">.<\/span><span class=\"token function\">invoke<\/span><span class=\"token punctuation\">(<\/span>\r\n   <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"role\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"user\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string-property property\">\"content\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u4f60\u597d\uff0c\u6211\u53ebada\uff01\u8bb0\u4f4f\u8fd9\u4e2a\u540d\u5b57\u5466~\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\r\n   config\r\n    <span class=\"token punctuation\">)<\/span>\r\n\r\n    <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>response<span class=\"token punctuation\">[<\/span><span class=\"token string\">'messages'<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span><span class=\"token operator\">-<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>content<span class=\"token punctuation\">)<\/span>\r\n\r\n    # \u7b2c\u4e8c\u6b21\u5bf9\u8bdd\uff0c\u65b0\u7ebf\u7a0b\uff0c\u8be2\u95eeagent\u8bb0\u4e0d\u8bb0\u5f97\u7528\u6237\u7684\u540d\u5b57\r\n    config <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">{<\/span>\r\n   <span class=\"token string-property property\">\"configurable\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span>\r\n<span class=\"token string-property property\">\"thread_id\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"4\"<\/span><span class=\"token punctuation\">,<\/span>\r\n<span class=\"token string-property property\">\"user_id\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"1\"<\/span><span class=\"token punctuation\">,<\/span>\r\n   <span class=\"token punctuation\">}<\/span>\r\n    <span class=\"token punctuation\">}<\/span>\r\n\r\n    response <span class=\"token operator\">=<\/span> graph<span class=\"token punctuation\">.<\/span><span class=\"token function\">invoke<\/span><span class=\"token punctuation\">(<\/span>\r\n   <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"role\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"user\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string-property property\">\"content\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u6211\u7684\u540d\u5b57\u662f\u4ec0\u4e48?\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\r\n   config\r\n    <span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>response<span class=\"token punctuation\">[<\/span><span class=\"token string\">'messages'<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span><span class=\"token operator\">-<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>content<span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_15\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<li>15.<\/li>\n<li>16.<\/li>\n<li>17.<\/li>\n<li>18.<\/li>\n<li>19.<\/li>\n<li>20.<\/li>\n<li>21.<\/li>\n<li>22.<\/li>\n<li>23.<\/li>\n<li>24.<\/li>\n<li>25.<\/li>\n<li>26.<\/li>\n<li>27.<\/li>\n<li>28.<\/li>\n<li>29.<\/li>\n<li>30.<\/li>\n<li>31.<\/li>\n<li>32.<\/li>\n<li>33.<\/li>\n<li>34.<\/li>\n<li>35.<\/li>\n<li>36.<\/li>\n<li>37.<\/li>\n<li>38.<\/li>\n<li>39.<\/li>\n<li>40.<\/li>\n<li>41.<\/li>\n<li>42.<\/li>\n<li>43.<\/li>\n<li>44.<\/li>\n<li>45.<\/li>\n<li>46.<\/li>\n<li>47.<\/li>\n<li>48.<\/li>\n<li>49.<\/li>\n<li>50.<\/li>\n<li>51.<\/li>\n<li>52.<\/li>\n<li>53.<\/li>\n<li>54.<\/li>\n<li>55.<\/li>\n<li>56.<\/li>\n<li>57.<\/li>\n<li>58.<\/li>\n<li>59.<\/li>\n<li>60.<\/li>\n<li>61.<\/li>\n<li>62.<\/li>\n<li>63.<\/li>\n<li>64.<\/li>\n<li>65.<\/li>\n<li>66.<\/li>\n<li>67.<\/li>\n<li>68.<\/li>\n<li>69.<\/li>\n<li>70.<\/li>\n<li>71.<\/li>\n<li>72.<\/li>\n<li>73.<\/li>\n<li>74.<\/li>\n<li>75.<\/li>\n<li>76.<\/li>\n<li>77.<\/li>\n<li>78.<\/li>\n<li>79.<\/li>\n<li>80.<\/li>\n<li>81.<\/li>\n<li>82.<\/li>\n<li>83.<\/li>\n<li>84.<\/li>\n<li>85.<\/li>\n<li>86.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u8f93\u51fa\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_16\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\"># <span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span>\u7b2c\u4e00\u6b21\u5bf9\u8bdd<span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span>\r\n\u4f60\u597dada\uff01\u5f88\u9ad8\u5174\u8ba4\u8bc6\u4f60\uff5e\u6211\u5df2\u7ecf\u8bb0\u4f4f\u4f60\u7684\u540d\u5b57\u5566\uff01\u2728\r\n \r\n\u6709\u4ec0\u4e48\u6211\u53ef\u4ee5\u5e2e\u4f60\u7684\u5417\uff1f\r\n# <span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span>\u7b2c\u4e8c\u6b21\u5bf9\u8bdd<span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span>\r\n\u4f60\u7684\u540d\u5b57\u662fada<\/code><\/pre>\n<ul id=\"code_id_16\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u5728\u7b2c\u4e00\u6b21\u5bf9\u8bdd\u65f6\uff0c\u5bf9\u8bdd\u7ebf\u7a0bid\u4e3a3\uff0cagent\u88ab\u8981\u6c42\u8bb0\u4f4f\u7528\u6237\u7684\u540d\u5b57\uff0c\u5e76\u4e14\u6839\u636e\u4ee3\u7801\u903b\u8f91\uff0c\u7528\u6237\u540d\u5b57\u4fe1\u606f\u662f\u901a\u8fc7store.put()\u5199\u5165\u6570\u636e\u5e93\u7684\u3002\u7b2c\u4e8c\u6b21\u5bf9\u8bdd\u65f6\uff0c\u7ebf\u7a0bid\u4e3a4\uff0c\u5f53\u88ab\u95ee\u8d77\u7528\u6237\u7684\u540d\u5b57\u65f6\uff0cagent\u901a\u8fc7store.search()\u529e\u6cd5\u4ece\u6570\u636e\u5e93\u4e2d\u68c0\u7d22\u5230\u4e86\u8fd9\u4e2a\u4fe1\u606f\uff0c\u5e76\u6210\u529f\u56de\u7b54\uff0c\u8fd9\u5c55\u793a\u4e86Store\u7684\u8de8\u8bb0\u5fc6\u5b58\u50a8\u80fd\u529b\u3002<\/p>\n<p><strong>(3) \u957f\u671f\u77e5\u8bc6\u8d4b\u80fd\u5de5\u5177<\/strong><\/p>\n<p>\u2460 \u5728\u5de5\u5177\u4e2d\u8bfb\u53d6\u957f\u671f\u8bb0\u5fc6\uff1a<\/p>\n<p>\u53c2\u8003\u4e0a\u6587\u4e2d\uff0c\u957f\u671f\u8bb0\u5fc6-InMemoryStore\u4e2d\u7684\u793a\u4f8b\u3002<\/p>\n<p>\u5176\u4e2d\uff0c\u6838\u5fc3\u5728\u4e8estore = get_store() \uff0c\u8fd9\u4e2a\u51fd\u6570\u662f\u4e00\u4e2a\u4e0a\u4e0b\u6587\u611f\u77e5\u7684\u8f85\u52a9\u51fd\u6570\uff0c\u80fd\u591f\u5728\u5de5\u5177\u6267\u884c\u65f6\uff0c\u81ea\u52a8\u83b7\u53d6\u5e76\u8fd4\u56decompile\u6216create_react_agent\u4e2d\u4f20\u5165\u7684store\u5b9e\u4f8b\u3002<\/p>\n<p>\u2461 \u5728\u5de5\u5177\u4e2d\u5199\u5165\u957f\u671f\u8bb0\u5fc6\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_17\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">from typing_extensions <span class=\"token keyword\">import<\/span> TypedDict\r\n \r\nfrom langchain<span class=\"token punctuation\">.<\/span>chat_models <span class=\"token keyword\">import<\/span> init_chat_model\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>config <span class=\"token keyword\">import<\/span> get_store\r\nfrom langchain_core<span class=\"token punctuation\">.<\/span>runnables <span class=\"token keyword\">import<\/span> RunnableConfig\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>prebuilt <span class=\"token keyword\">import<\/span> create_react_agent\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>store<span class=\"token punctuation\">.<\/span>memory <span class=\"token keyword\">import<\/span> InMemoryStore\r\n\r\nstore <span class=\"token operator\">=<\/span> <span class=\"token function\">InMemoryStore<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> \r\n\r\n<span class=\"token constant\">BASE_URL<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n<span class=\"token constant\">TOKEN<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n<span class=\"token constant\">MODEL_NAME<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n\r\nmodel <span class=\"token operator\">=<\/span> <span class=\"token function\">init_chat_model<\/span><span class=\"token punctuation\">(<\/span>\r\n    model<span class=\"token operator\">=<\/span><span class=\"token constant\">MODEL_NAME<\/span><span class=\"token punctuation\">,<\/span>\r\n    model_provider<span class=\"token operator\">=<\/span><span class=\"token string\">\"openai\"<\/span><span class=\"token punctuation\">,<\/span> \r\n    base_url<span class=\"token operator\">=<\/span><span class=\"token constant\">BASE_URL<\/span><span class=\"token punctuation\">,<\/span>\r\n    api_key<span class=\"token operator\">=<\/span><span class=\"token constant\">TOKEN<\/span><span class=\"token punctuation\">,<\/span>\r\n    temperature<span class=\"token operator\">=<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">UserInfo<\/span><span class=\"token punctuation\">(<\/span>TypedDict<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span> \r\n    <span class=\"token literal-property property\">name<\/span><span class=\"token operator\">:<\/span> str\r\n\r\ndef <span class=\"token function\">save_user_info<\/span><span class=\"token punctuation\">(<\/span>user_info<span class=\"token operator\">:<\/span> UserInfo<span class=\"token punctuation\">,<\/span> <span class=\"token literal-property property\">config<\/span><span class=\"token operator\">:<\/span> RunnableConfig<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-<\/span><span class=\"token operator\">&gt;<\/span> str<span class=\"token operator\">:<\/span> \r\n    <span class=\"token string\">\"\"<\/span><span class=\"token string\">\"\u5c06\u7528\u6237\u4fe1\u606f\u4fdd\u5b58\u5230store\"<\/span><span class=\"token string\">\"\"<\/span>\r\n    store <span class=\"token operator\">=<\/span> <span class=\"token function\">get_store<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> \r\n    user_id <span class=\"token operator\">=<\/span> config<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"configurable\"<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"user_id\"<\/span><span class=\"token punctuation\">)<\/span>\r\n    store<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"users\"<\/span><span class=\"token punctuation\">,<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> user_id<span class=\"token punctuation\">,<\/span> user_info<span class=\"token punctuation\">)<\/span> \r\n    <span class=\"token keyword\">return<\/span><span class=\"token string\">\"\u6210\u529f\u4fdd\u5b58\u4e86\u7528\u6237\u4fe1\u606f\"<\/span>\r\n\r\nagent <span class=\"token operator\">=<\/span> <span class=\"token function\">create_react_agent<\/span><span class=\"token punctuation\">(<\/span>\r\n    model<span class=\"token operator\">=<\/span>model<span class=\"token punctuation\">,<\/span>\r\n    tools<span class=\"token operator\">=<\/span><span class=\"token punctuation\">[<\/span>save_user_info<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>\r\n    store<span class=\"token operator\">=<\/span>store\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\nagent<span class=\"token punctuation\">.<\/span><span class=\"token function\">invoke<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"role\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"user\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string-property property\">\"content\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u6211\u53ebada\uff01\u8bf7\u4f60\u8bb0\u4f4f\u6211\u7684\u540d\u5b57\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\r\n    cnotallow<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"configurable\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"user_id\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"user_123\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">}<\/span> \r\n<span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_17\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<li>15.<\/li>\n<li>16.<\/li>\n<li>17.<\/li>\n<li>18.<\/li>\n<li>19.<\/li>\n<li>20.<\/li>\n<li>21.<\/li>\n<li>22.<\/li>\n<li>23.<\/li>\n<li>24.<\/li>\n<li>25.<\/li>\n<li>26.<\/li>\n<li>27.<\/li>\n<li>28.<\/li>\n<li>29.<\/li>\n<li>30.<\/li>\n<li>31.<\/li>\n<li>32.<\/li>\n<li>33.<\/li>\n<li>34.<\/li>\n<li>35.<\/li>\n<li>36.<\/li>\n<li>37.<\/li>\n<li>38.<\/li>\n<li>39.<\/li>\n<li>40.<\/li>\n<li>41.<\/li>\n<li>42.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u9996\u5148\u9700\u8981\u5b9a\u4e49\u8981\u5b58\u50a8\u7684\u6570\u636e\u5185\u5bb9\uff0c\u5373UserInfo\uff0c\u5b83\u4e3aLLM\u63d0\u4f9b\u4e86\u4e00\u4e2a\u6e05\u6670\u7684\u7ed3\u6784\u5316\u8f93\u51fa\u683c\u5f0f\uff0c\u5f53LLM\u51b3\u5b9a\u8c03\u7528save_user_info\u7684\u5de5\u5177\u65f6\uff0c\u4f1a\u81ea\u52a8\u751f\u6210\u4e00\u4e2a\u5305\u542bname\u5b57\u6bb5\u7684\u5b57\u5178\u3002\u7136\u540e\u8c03\u7528store.put()\u65b9\u6cd5\uff0c\u5c06\u6570\u636e\u5b58\u50a8\u4e0b\u6765\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/s2.51cto.com\/oss\/202512\/10\/447d9c45025e1e09c07821ae95713640e5e1cc.webp\" data-type=\"block\" \/><\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_18\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">store<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"users\"<\/span><span class=\"token punctuation\">,<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"user_123\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>value\r\n \r\n# \u8f93\u51fa\uff1a<span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">'name'<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">'ada'<\/span><span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<ul id=\"code_id_18\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>(4) \u8bed\u4e49\u641c\u7d22<\/strong><\/p>\n<p>Store\u6700\u5f3a\u5927\u7684\u529f\u80fd\u4e4b\u4e00\u662f\u652f\u6301\u8bed\u4e49\u641c\u7d22\uff0c\u8fd9\u80fd\u5c06Store\u4ece\u4e00\u4e2a\u7b80\u5355\u7684\u952e\u503c\u6570\u636e\u5e93\uff0c\u8f6c\u53d8\u4e3a\u4e00\u4e2a\u529f\u80fd\u5b8c\u5907\u7684\u5411\u91cf\u6570\u636e\u5e93\u3002\u667a\u80fd\u4f53\u4e0d\u518d\u53ea\u80fd\u901a\u8fc7\u7cbe\u786e\u7684\u5173\u952e\u8bcd\u6765\u68c0\u7d22\u8bb0\u5fc6\uff0c\u800c\u662f\u80fd\u591f\u6839\u636e\u6982\u5ff5\u7684\u76f8\u4f3c\u6027\u6765\u67e5\u627e\u76f8\u5173\u4fe1\u606f\u3002\u8fd9\u5b9e\u9645\u5c31\u662f\u4e00\u5957RAG\u6d41\u7a0b\u3002<\/p>\n<p>\u4e0b\u9762\u6211\u4eec\u5c06\u57fa\u4e8e\u81ea\u5b9a\u4e49\u90e8\u7f72\u7684Embedding\u670d\u52a1\uff0c\u6765\u6f14\u793a\u5982\u4f55\u8fdb\u884c\u957f\u671f\u8bb0\u5fc6\u8bed\u4e49\u641c\u7d22\u3002\u7279\u522b\u8bf4\u660e\u7684\u662f\uff0c\u4ee3\u7801\u4ec5\u4f9b\u6f14\u793a\u4f7f\u7528\uff0c\u5b9e\u9645\u4f7f\u7528\u53ef\u4ee5\u53c2\u8003\u4e0b\u9762\u4ee3\u7801\uff0c\u7f16\u5199\u66f4\u89c4\u8303\u7684\u4ee3\u7801\u3002<\/p>\n<p>\u2460 \u9996\u5148\u6211\u4eec\u9700\u8981\u81ea\u5df1\u90e8\u7f72\u4e00\u4e2aEmbedding\u670d\u52a1\uff0c\u8fd9\u91cc\u6211\u4eec\u4ee5Qwen3-Embedding-4B\u4e3a\u4f8b\u3002<\/p>\n<p>\u2461 \u521b\u5efa\u81ea\u5b9a\u4e49Embedding\u7c7b\uff0c\u8fd9\u4e2a\u7c7b\u9700\u8981\u7ee7\u627f\u81ealangchain.embeddings.base.Embeddings\uff0c\u8fd9\u4e2a\u7c7b\u7684\u4f5c\u7528\u662f\u8d1f\u8d23\u4e0eEmbedding\u670d\u52a1\u8fdb\u884c\u901a\u4fe1\u3002<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_19\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\"><span class=\"token keyword\">import<\/span> requests\r\nfrom typing <span class=\"token keyword\">import<\/span> List<span class=\"token punctuation\">,<\/span> Optional<span class=\"token punctuation\">,<\/span> Dict\r\nfrom langchain<span class=\"token punctuation\">.<\/span>embeddings<span class=\"token punctuation\">.<\/span>base <span class=\"token keyword\">import<\/span> Embeddings\r\n\r\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">SelfAPIEmbeddings<\/span><span class=\"token punctuation\">(<\/span>Embeddings<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n    <span class=\"token string\">\"\"<\/span>\"\r\n    \u4e00\u4e2a\u81ea\u5b9a\u4e49\u7684 Embedding \u7c7b\uff0c\u7528\u4e8e\u8c03\u7528\u81ea\u90e8\u7f72\u7684 embedding <span class=\"token constant\">API<\/span> \u670d\u52a1\u3002\r\n    <span class=\"token string\">\"\"<\/span>\"\r\n    def <span class=\"token function\">__init__<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n   <span class=\"token string\">\"\"<\/span>\"\r\n   \u521d\u59cb\u5316\u51fd\u6570\u3002\r\n   <span class=\"token string\">\"\"<\/span>\"\r\n   self<span class=\"token punctuation\">.<\/span>token <span class=\"token operator\">=<\/span> <span class=\"token string\">\"\"<\/span>\r\n   self<span class=\"token punctuation\">.<\/span>url <span class=\"token operator\">=<\/span> <span class=\"token string\">\"\"<\/span>\r\n   self<span class=\"token punctuation\">.<\/span>model_id <span class=\"token operator\">=<\/span> <span class=\"token string\">\"\"<\/span>\r\n\r\n    def <span class=\"token function\">_call_api<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">,<\/span> <span class=\"token literal-property property\">texts<\/span><span class=\"token operator\">:<\/span> List<span class=\"token punctuation\">[<\/span>str<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-<\/span><span class=\"token operator\">&gt;<\/span> List<span class=\"token punctuation\">[<\/span>List<span class=\"token punctuation\">[<\/span>float<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">:<\/span>\r\n   <span class=\"token string\">\"\"<\/span>\"\r\n   \u5185\u90e8\u65b9\u6cd5\uff0c\u7528\u4e8e\u8c03\u7528 <span class=\"token constant\">API<\/span>\u3002\r\n   <span class=\"token operator\">**<\/span><span class=\"token operator\">*<\/span> \u60a8\u9700\u8981\u6839\u636e\u60a8\u81ea\u5df1\u670d\u52a1\u7684\u5b9e\u9645 <span class=\"token constant\">API<\/span> \u683c\u5f0f\u6765\u4fee\u6539\u8fd9\u90e8\u5206 <span class=\"token operator\">**<\/span><span class=\"token operator\">*<\/span>\r\n   <span class=\"token string\">\"\"<\/span>\"\r\n   <span class=\"token keyword\">try<\/span><span class=\"token operator\">:<\/span>\r\npayload <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">{<\/span>\r\n    <span class=\"token string-property property\">'model'<\/span><span class=\"token operator\">:<\/span> self<span class=\"token punctuation\">.<\/span>model_id<span class=\"token punctuation\">,<\/span>\r\n    <span class=\"token string-property property\">'input'<\/span><span class=\"token operator\">:<\/span> texts\r\n<span class=\"token punctuation\">}<\/span>\r\n\r\nheaders <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">{<\/span>\r\n    <span class=\"token string-property property\">'Content-Type'<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">'application\/json'<\/span><span class=\"token punctuation\">,<\/span>\r\n    <span class=\"token string-property property\">'Authorization'<\/span><span class=\"token operator\">:<\/span> f<span class=\"token string\">'Bearer {self.token}'<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n\r\nresponse <span class=\"token operator\">=<\/span> requests<span class=\"token punctuation\">.<\/span><span class=\"token function\">post<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">.<\/span>url<span class=\"token punctuation\">,<\/span> headers<span class=\"token operator\">=<\/span>headers<span class=\"token punctuation\">,<\/span> data<span class=\"token operator\">=<\/span>json<span class=\"token punctuation\">.<\/span><span class=\"token function\">dumps<\/span><span class=\"token punctuation\">(<\/span>payload<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\n# \u5224\u65ad\u662f\u5426\u5f02\u5e38\r\n<span class=\"token keyword\">if<\/span> response<span class=\"token punctuation\">.<\/span>status_code <span class=\"token operator\">!=<\/span> <span class=\"token number\">200<\/span><span class=\"token operator\">:<\/span>\r\n    <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>response<span class=\"token punctuation\">.<\/span><span class=\"token function\">json<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token function\">exit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\nres <span class=\"token operator\">=<\/span> response<span class=\"token punctuation\">.<\/span><span class=\"token function\">json<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token keyword\">return<\/span> res<span class=\"token punctuation\">[<\/span><span class=\"token string\">'data'<\/span><span class=\"token punctuation\">]<\/span>\r\n   except requests<span class=\"token punctuation\">.<\/span>exceptions<span class=\"token punctuation\">.<\/span>RequestException <span class=\"token keyword\">as<\/span> <span class=\"token literal-property property\">e<\/span><span class=\"token operator\">:<\/span>\r\n<span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>f<span class=\"token string\">\"Error calling embedding API: {e}\"<\/span><span class=\"token punctuation\">)<\/span>\r\n# \u53ef\u4ee5\u9009\u62e9\u8fd4\u56de\u7a7a\u5217\u8868\u6216\u91cd\u65b0\u629b\u51fa\u5f02\u5e38\r\nraise e\r\n\r\n    def <span class=\"token function\">embed_documents<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">,<\/span> <span class=\"token literal-property property\">texts<\/span><span class=\"token operator\">:<\/span> List<span class=\"token punctuation\">[<\/span>str<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-<\/span><span class=\"token operator\">&gt;<\/span> List<span class=\"token punctuation\">[<\/span>List<span class=\"token punctuation\">[<\/span>float<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">:<\/span>\r\n   <span class=\"token string\">\"\"<\/span>\"\r\n   \u4e3a\u6587\u6863\u5217\u8868\u751f\u6210 embeddings\u3002\r\n   <span class=\"token string\">\"\"<\/span>\"\r\n   <span class=\"token keyword\">if<\/span> not texts<span class=\"token operator\">:<\/span>\r\n<span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span>\r\n   # \u4e3a\u4e86\u907f\u514d\u8bf7\u6c42\u4f53\u8fc7\u5927\uff0c\u53ef\u4ee5\u5206\u6279\u5904\u7406\r\n   # \u8fd9\u91cc\u4e3a\u4e86\u7b80\u5355\u8d77\u89c1\uff0c\u4e00\u6b21\u6027\u53d1\u9001\u6240\u6709\u6587\u672c\r\n   new_texts <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span>\r\n   <span class=\"token keyword\">for<\/span> i <span class=\"token keyword\">in<\/span> <span class=\"token literal-property property\">texts<\/span><span class=\"token operator\">:<\/span>\r\ni <span class=\"token operator\">=<\/span> <span class=\"token function\">eval<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">)<\/span>\r\nnew_texts<span class=\"token punctuation\">.<\/span><span class=\"token function\">append<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">[<\/span><span class=\"token string\">'text'<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span>\r\n   \r\n   res <span class=\"token operator\">=<\/span> self<span class=\"token punctuation\">.<\/span><span class=\"token function\">_call_api<\/span><span class=\"token punctuation\">(<\/span>new_texts<span class=\"token punctuation\">)<\/span>\r\n   new_res <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span>\r\n   <span class=\"token keyword\">for<\/span> i <span class=\"token keyword\">in<\/span> <span class=\"token literal-property property\">res<\/span><span class=\"token operator\">:<\/span>\r\nnew_res<span class=\"token punctuation\">.<\/span><span class=\"token function\">append<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">[<\/span><span class=\"token string\">'embedding'<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span>\r\n   <span class=\"token keyword\">return<\/span> new_res\r\n\r\n    def <span class=\"token function\">embed_query<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">,<\/span> <span class=\"token literal-property property\">text<\/span><span class=\"token operator\">:<\/span> str<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-<\/span><span class=\"token operator\">&gt;<\/span> List<span class=\"token punctuation\">[<\/span>float<span class=\"token punctuation\">]<\/span><span class=\"token operator\">:<\/span>\r\n   <span class=\"token string\">\"\"<\/span>\"\r\n   \u4e3a\u5355\u4e2a\u67e5\u8be2\u6587\u672c\u751f\u6210 embedding\u3002\r\n   <span class=\"token string\">\"\"<\/span>\"\r\n   <span class=\"token keyword\">if<\/span> not text<span class=\"token operator\">:<\/span>\r\n<span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span>\r\n   result <span class=\"token operator\">=<\/span> self<span class=\"token punctuation\">.<\/span><span class=\"token function\">_call_api<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span>text<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span>\r\n   <span class=\"token keyword\">return<\/span> result<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string\">'embedding'<\/span><span class=\"token punctuation\">]<\/span><\/code><\/pre>\n<ul id=\"code_id_19\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<li>15.<\/li>\n<li>16.<\/li>\n<li>17.<\/li>\n<li>18.<\/li>\n<li>19.<\/li>\n<li>20.<\/li>\n<li>21.<\/li>\n<li>22.<\/li>\n<li>23.<\/li>\n<li>24.<\/li>\n<li>25.<\/li>\n<li>26.<\/li>\n<li>27.<\/li>\n<li>28.<\/li>\n<li>29.<\/li>\n<li>30.<\/li>\n<li>31.<\/li>\n<li>32.<\/li>\n<li>33.<\/li>\n<li>34.<\/li>\n<li>35.<\/li>\n<li>36.<\/li>\n<li>37.<\/li>\n<li>38.<\/li>\n<li>39.<\/li>\n<li>40.<\/li>\n<li>41.<\/li>\n<li>42.<\/li>\n<li>43.<\/li>\n<li>44.<\/li>\n<li>45.<\/li>\n<li>46.<\/li>\n<li>47.<\/li>\n<li>48.<\/li>\n<li>49.<\/li>\n<li>50.<\/li>\n<li>51.<\/li>\n<li>52.<\/li>\n<li>53.<\/li>\n<li>54.<\/li>\n<li>55.<\/li>\n<li>56.<\/li>\n<li>57.<\/li>\n<li>58.<\/li>\n<li>59.<\/li>\n<li>60.<\/li>\n<li>61.<\/li>\n<li>62.<\/li>\n<li>63.<\/li>\n<li>64.<\/li>\n<li>65.<\/li>\n<li>66.<\/li>\n<li>67.<\/li>\n<li>68.<\/li>\n<li>69.<\/li>\n<li>70.<\/li>\n<li>71.<\/li>\n<li>72.<\/li>\n<li>73.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u2462 \u5c06\u81ea\u5b9a\u4e49\u7684Embedding\u7c7b\u96c6\u6210\u5230\u5de5\u4f5c\u6d41\u4e2d\uff0c\u901a\u8fc7\u5728Store\u4e2d\u914d\u7f6eindex\u6765\u542f\u7528\u8bed\u4e49\u641c\u7d22\u3002<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_20\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">from langchain<span class=\"token punctuation\">.<\/span>embeddings <span class=\"token keyword\">import<\/span> init_embeddings\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>store<span class=\"token punctuation\">.<\/span>memory <span class=\"token keyword\">import<\/span> InMemoryStore\r\n \r\ncustom_embeddings <span class=\"token operator\">=<\/span> <span class=\"token function\">SelfAPIEmbeddings<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\nstore <span class=\"token operator\">=<\/span> <span class=\"token function\">InMemoryStore<\/span><span class=\"token punctuation\">(<\/span>\r\n    index<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>\r\n   <span class=\"token string-property property\">\"embed\"<\/span><span class=\"token operator\">:<\/span> custom_embeddings<span class=\"token punctuation\">,<\/span>\r\n   <span class=\"token string-property property\">\"dims\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token number\">2560<\/span><span class=\"token punctuation\">,<\/span>\r\n    <span class=\"token punctuation\">}<\/span>\r\n<span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_20\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u2463 \u8bed\u4e49\u67e5\u8be2\u6d4b\u8bd5\u3002<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_21\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">store<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"user_123\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"memories\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"1\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"text\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u6211\u559c\u6b22\u5403\u62ab\u8428\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span>\r\nstore<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"user_123\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"memories\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"2\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"text\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u6211\u662f\u4e00\u540d\u7a0b\u5e8f\u5458\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span>\r\n \r\nitems <span class=\"token operator\">=<\/span> store<span class=\"token punctuation\">.<\/span><span class=\"token function\">search<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token punctuation\">(<\/span><span class=\"token string\">\"user_123\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"memories\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> query<span class=\"token operator\">=<\/span><span class=\"token string\">\"\u6211\u809a\u5b50\u997f\u4e86\"<\/span><span class=\"token punctuation\">,<\/span> limit<span class=\"token operator\">=<\/span><span class=\"token number\">1<\/span>\r\n<span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_21\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u8f93\u51fa\u5982\u4e0b\uff0c\u5c3d\u7ba1\u67e5\u8be2\u6ca1\u6709\u201d\u62ab\u8428\u201c\u8fd9\u4e2a\u8bcd\uff0c\u4f46\u662f\u901a\u8fc7Embedding\u6a21\u578b\u8ba1\u7b97\uff0c\u77e5\u9053\u62ab\u8428\u548c\u997f\u4e86\u662f\u76f8\u8fd1\u7684\u8bed\u4e49\uff0c\u56e0\u6b64\u6210\u529f\u68c0\u7d22\u51fa\u4e86\u76f8\u5173\u7684\u8bb0\u5fc6\u3002<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_22\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\"><span class=\"token punctuation\">[<\/span><span class=\"token function\">Item<\/span><span class=\"token punctuation\">(<\/span>namespace<span class=\"token operator\">=<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string\">'user_123'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">'memories'<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> key<span class=\"token operator\">=<\/span><span class=\"token string\">'1'<\/span><span class=\"token punctuation\">,<\/span> value<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">'text'<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">'\u6211\u559c\u6b22\u5403\u62ab\u8428'<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> created_at<span class=\"token operator\">=<\/span><span class=\"token string\">'2025-11-12T09:59:55.097931+00:00'<\/span><span class=\"token punctuation\">,<\/span> updated_at<span class=\"token operator\">=<\/span><span class=\"token string\">'2025-11-12T09:59:55.097937+00:00'<\/span><span class=\"token punctuation\">,<\/span> score<span class=\"token operator\">=<\/span><span class=\"token number\">0.6804530799409887<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span><\/code><\/pre>\n<ul id=\"code_id_22\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h4>4. \u77ed\u671f\u8bb0\u5fc6\u7ba1\u7406\u7b56\u7565<\/h4>\n<p>\u968f\u7740\u5bf9\u8bdd\u7684\u8fdb\u884c\uff0c\u77ed\u671f\u8bb0\u5fc6\uff08\u5bf9\u8bdd\u5386\u53f2\uff09\u4f1a\u4e0d\u65ad\u589e\u957f\uff0c\u53ef\u80fd\u4f1a\u8d85\u51faLLM\u7684\u4e0a\u4e0b\u6587\u7a97\u53e3\uff0c\u5bfc\u81f4\u8bf7\u6c42\u8c03\u7528\u5931\u8d25\uff0c\u6216\u8005\u4f7fLLM\u53cd\u5e94\u53d8\u6162\u3001\u53d8\u5dee\u3002\u8fd9\u65f6\uff0c\u5c31\u9700\u8981\u5bf9\u8bb0\u5fc6\u8fdb\u884c\u7ba1\u7406\u4e86\u3002\u5e38\u89c1\u7684\u89e3\u51b3\u529e\u6cd5\u6709\uff1a<\/p>\n<ul data-id=\"u738a58b-PKcROQmI\">\n<li data-id=\"ld70c578-cgQBwRmq\">\u4fee\u526a\u6d88\u606f\uff08trim messages\uff09\uff1a\u79fb\u9664\u524d N \u6761\u6216\u540e N \u6761\u6d88\u606f\uff08\u5728\u8c03\u7528 LLM \u4e4b\u524d\uff09\u3002\u6700\u7b80\u5355\u76f4\u63a5\uff0c\u4f46\u4fe1\u606f\u4e22\u5931\u4e25\u91cd\uff0c\u9002\u5408\u77ed\u671f\u4efb\u52a1\u3001\u65e0\u72b6\u6001\u95ee\u7b54\u673a\u5668\u4eba\u3001\u8fd1\u671f\u4e0a\u4e0b\u6587\u6700\u91cd\u8981\u7684\u5e94\u7528\u3002<\/li>\n<li data-id=\"ld70c578-KUWiq3sz\">\u5220\u9664\u6d88\u606f\uff08delete messages\uff09\uff1a\u4eceLangGraph\u72b6\u6001\u4e2d\u6c38\u4e45\u5220\u9664\u6d88\u606f\u3002\u53ef\u4ee5\u7cbe\u786e\u7684\u63a7\u5236\u79fb\u9664\u5185\u5bb9\uff0c\u4f46\u9700\u8981\u81ea\u5b9a\u4e49\u903b\u8f91\u6765\u5224\u65ad\u54ea\u4e9b\u6d88\u606f\u9700\u8981\u5220\u9664\uff0c\u9002\u5408\u7528\u4e8e\u79fb\u9664\u4e0d\u518d\u9700\u8981\u7684\u5197\u4f59\u7cfb\u7edf\u6d88\u606f\u3001\u5de5\u5177\u8f93\u51fa\u6216\u9519\u8bef\u4fe1\u606f\u3002<\/li>\n<li data-id=\"ld70c578-lLrCDN0N\">\u603b\u7ed3\u6d88\u606f\uff08summarize messages\uff09\uff1a\u6c47\u603b\u5386\u53f2\u8bb0\u5f55\u4e2d\u7684\u65e9\u671f\u6d88\u606f\u5e76\u5c06\u5176\u66ff\u6362\u4e3a\u6458\u8981\u3002\u4fdd\u7559\u4e86\u6838\u5fc3\u8bed\u4e49\u4fe1\u606f\uff0c\u4f46\u8ba1\u7b97\u6210\u672c\u9ad8\uff0c\u5b9e\u73b0\u76f8\u5bf9\u590d\u6742\uff0c\u9002\u5408\u7528\u4e8e\u957f\u671f\u8fde\u7eed\u5bf9\u8bdd\u3001\u9700\u8981\u7ef4\u6301\u6df1\u5ea6\u957f\u671f\u4e0a\u4e0b\u6587\u7684\u667a\u80fd\u4f53\u3002<\/li>\n<li data-id=\"ld70c578-Xw0jjHRb\">\u81ea\u5b9a\u4e49\u7b56\u7565\uff1a\u4f8b\u5982\u6d88\u606f\u8fc7\u6ee4\u7b49\u3002<\/li>\n<\/ul>\n<p><strong>(1) \u4fee\u526a\u6d88\u606f<\/strong><\/p>\n<p>\u7ba1\u7406\u5bf9\u8bdd\u5386\u53f2\u7684\u4e00\u4e2a\u91cd\u8981\u6982\u5ff5\u662f\u9650\u5236\u4f20\u9012\u7ed9\u6a21\u578b\u7684\u6d88\u606f\u6570\u91cf\uff0ctrim_messages\u5c31\u662fLangChain\u63d0\u4f9b\u7684\u4e00\u4e2a\u5b9e\u7528\u51fd\u6570\uff0c\u5b83\u6839\u636e\u6307\u5b9a\u7684\u7b56\u7565\u3001token\u9650\u5236\u3001\u6a21\u578b\u8981\u6c42\u4ee5\u53ca\u662f\u5426\u5305\u542b\u7cfb\u7edf\u6d88\u606f\u7b49\u6765\u88c1\u526a\u6d88\u606f\u5217\u8868\uff0c\u5b83\u7684\u4e3b\u8981\u76ee\u7684\u662f\u786e\u4fdd\u5bf9\u8bdd\u5386\u53f2\u4e0d\u4f1a\u8d85\u51fa\u6a21\u578b\u7684\u4e0a\u4e0b\u6587\u7a97\u53e3\u5927\u5c0f\u3002<\/p>\n<p>\u5b83\u7684\u89e3\u51b3\u7b56\u7565\u662f\uff1a\u5f53\u6d88\u606f\u5386\u53f2\u8fc7\u957f\u65f6\uff0c\u4ece\u5f00\u5934\u6216\u7ed3\u5c3e\u4e22\u5f03\u4e00\u90e8\u5206\u6d88\u606f\uff0c\u4ee5\u786e\u4fdd\u603b\u957f\u5ea6\u7b26\u5408\u9650\u5236\u3002<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_23\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">from langchain_core<span class=\"token punctuation\">.<\/span>messages<span class=\"token punctuation\">.<\/span>utils <span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">(<\/span>\r\n    trim_messages<span class=\"token punctuation\">,<\/span>\r\n    count_tokens_approximately\r\n<span class=\"token punctuation\">)<\/span>\r\nfrom langchain<span class=\"token punctuation\">.<\/span>chat_models <span class=\"token keyword\">import<\/span> init_chat_model\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>checkpoint<span class=\"token punctuation\">.<\/span>memory <span class=\"token keyword\">import<\/span> InMemorySaver\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>graph <span class=\"token keyword\">import<\/span> StateGraph<span class=\"token punctuation\">,<\/span> <span class=\"token constant\">START<\/span><span class=\"token punctuation\">,<\/span> MessagesState\r\n\r\n<span class=\"token constant\">BASE_URL<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n<span class=\"token constant\">TOKEN<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n<span class=\"token constant\">MODEL_NAME<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n\r\nmodel <span class=\"token operator\">=<\/span> <span class=\"token function\">init_chat_model<\/span><span class=\"token punctuation\">(<\/span>\r\n    model<span class=\"token operator\">=<\/span><span class=\"token constant\">MODEL_NAME<\/span><span class=\"token punctuation\">,<\/span>\r\n    model_provider<span class=\"token operator\">=<\/span><span class=\"token string\">\"openai\"<\/span><span class=\"token punctuation\">,<\/span> \r\n    base_url<span class=\"token operator\">=<\/span><span class=\"token constant\">BASE_URL<\/span><span class=\"token punctuation\">,<\/span>\r\n    api_key<span class=\"token operator\">=<\/span><span class=\"token constant\">TOKEN<\/span><span class=\"token punctuation\">,<\/span>\r\n    temperature<span class=\"token operator\">=<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\nsummarization_model <span class=\"token operator\">=<\/span> <span class=\"token function\">model<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span>max_tokens<span class=\"token operator\">=<\/span><span class=\"token number\">128<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\ndef <span class=\"token function\">call_model<\/span><span class=\"token punctuation\">(<\/span>state<span class=\"token operator\">:<\/span> MessagesState<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n    # \u4fdd\u7559\u6700\u8fd1\u6d88\u606f\uff0c\u603b token \u2264 <span class=\"token number\">128<\/span>\r\n    messages <span class=\"token operator\">=<\/span> <span class=\"token function\">trim_messages<\/span><span class=\"token punctuation\">(<\/span>\r\n   state<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"messages\"<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>\r\n   strategy<span class=\"token operator\">=<\/span><span class=\"token string\">\"last\"<\/span><span class=\"token punctuation\">,<\/span>  # \u4fdd\u7559\u6700\u540e\u7684\u6d88\u606f\r\n   token_counter<span class=\"token operator\">=<\/span>count_tokens_approximately<span class=\"token punctuation\">,<\/span>\r\n   max_tokens<span class=\"token operator\">=<\/span><span class=\"token number\">128<\/span><span class=\"token punctuation\">,<\/span>\r\n   start_notallow<span class=\"token operator\">=<\/span><span class=\"token string\">\"human\"<\/span><span class=\"token punctuation\">,<\/span>  # \u786e\u4fdd\u7b2c\u4e00\u6761\u6d88\u606f\uff08\u4e0d\u5305\u62ec\u7cfb\u7edf\u6d88\u606f\uff09\u662f\u4ecehuman\u6d88\u606f\u5f00\u59cb\u4fdd\u7559\r\n   end_notallow<span class=\"token operator\">=<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"human\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"tool\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>  # \u4fdd\u7559\u5230human\u6216tool\u6d88\u606f\u4e3a\u6b62\r\n   allow_partial<span class=\"token operator\">=<\/span>False<span class=\"token punctuation\">,<\/span>  # \u4e0d\u5141\u8bb8\u5206\u5272\u6d88\u606f\u5185\u5bb9\r\n   include_system<span class=\"token operator\">=<\/span>True  # \u4fdd\u7559system prompt\r\n    <span class=\"token punctuation\">)<\/span>\r\n    # <span class=\"token operator\">--<\/span><span class=\"token operator\">-<\/span> \u5728\u8fd9\u91cc\u6253\u5370\u4f20\u5165\u6a21\u578b\u7684\u5185\u5bb9 <span class=\"token operator\">--<\/span><span class=\"token operator\">-<\/span>\r\n    <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"-\"<\/span> <span class=\"token operator\">*<\/span> <span class=\"token number\">20<\/span><span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>f<span class=\"token string\">\"Messages being sent to the model (trimmed to &lt;= 128 tokens): {len(messages)}\"<\/span><span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token keyword\">for<\/span> msg <span class=\"token keyword\">in<\/span> <span class=\"token literal-property property\">messages<\/span><span class=\"token operator\">:<\/span>\r\n   <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>f<span class=\"token string\">\"  [{msg.type.upper()}]: {msg.content}\"<\/span><span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"-\"<\/span> <span class=\"token operator\">*<\/span> <span class=\"token number\">20<\/span><span class=\"token punctuation\">)<\/span>\r\n    response <span class=\"token operator\">=<\/span> model<span class=\"token punctuation\">.<\/span><span class=\"token function\">invoke<\/span><span class=\"token punctuation\">(<\/span>messages<span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span>response<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span>\r\n\r\ncheckpointer <span class=\"token operator\">=<\/span> <span class=\"token function\">InMemorySaver<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\nbuilder <span class=\"token operator\">=<\/span> <span class=\"token function\">StateGraph<\/span><span class=\"token punctuation\">(<\/span>MessagesState<span class=\"token punctuation\">)<\/span>\r\nbuilder<span class=\"token punctuation\">.<\/span><span class=\"token function\">add_node<\/span><span class=\"token punctuation\">(<\/span>call_model<span class=\"token punctuation\">)<\/span>\r\nbuilder<span class=\"token punctuation\">.<\/span><span class=\"token function\">add_edge<\/span><span class=\"token punctuation\">(<\/span><span class=\"token constant\">START<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"call_model\"<\/span><span class=\"token punctuation\">)<\/span>\r\ngraph <span class=\"token operator\">=<\/span> builder<span class=\"token punctuation\">.<\/span><span class=\"token function\">compile<\/span><span class=\"token punctuation\">(<\/span>checkpointer<span class=\"token operator\">=<\/span>checkpointer<span class=\"token punctuation\">)<\/span>\r\n\r\n# \u5982\u679c\u9700\u8981\u5728agent\u4e2d\u4fee\u526a\uff0c\u90a3\u4e48\u9700\u8981\u5c06pre_model_hook\u548ctrim_messages\u7ed3\u5408\u4f7f\u7528\r\n<span class=\"token string\">\"\"<\/span>\"\r\ndef <span class=\"token function\">call_model<\/span><span class=\"token punctuation\">(<\/span>state<span class=\"token punctuation\">)<\/span>\r\n    messages <span class=\"token operator\">=<\/span> <span class=\"token function\">trim_messages<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">...<\/span><span class=\"token punctuation\">)<\/span>\r\n \r\nagent <span class=\"token operator\">=<\/span> <span class=\"token function\">create_react_agent<\/span><span class=\"token punctuation\">(<\/span>\r\n model<span class=\"token punctuation\">,<\/span>\r\n tools<span class=\"token punctuation\">,<\/span>\r\n pre_model_hook<span class=\"token operator\">=<\/span>call_model<span class=\"token punctuation\">,<\/span>\r\n checkpointer<span class=\"token operator\">=<\/span>checkpointer<span class=\"token punctuation\">,<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\n<span class=\"token string\">\"\"<\/span>\"<\/code><\/pre>\n<ul id=\"code_id_23\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<li>15.<\/li>\n<li>16.<\/li>\n<li>17.<\/li>\n<li>18.<\/li>\n<li>19.<\/li>\n<li>20.<\/li>\n<li>21.<\/li>\n<li>22.<\/li>\n<li>23.<\/li>\n<li>24.<\/li>\n<li>25.<\/li>\n<li>26.<\/li>\n<li>27.<\/li>\n<li>28.<\/li>\n<li>29.<\/li>\n<li>30.<\/li>\n<li>31.<\/li>\n<li>32.<\/li>\n<li>33.<\/li>\n<li>34.<\/li>\n<li>35.<\/li>\n<li>36.<\/li>\n<li>37.<\/li>\n<li>38.<\/li>\n<li>39.<\/li>\n<li>40.<\/li>\n<li>41.<\/li>\n<li>42.<\/li>\n<li>43.<\/li>\n<li>44.<\/li>\n<li>45.<\/li>\n<li>46.<\/li>\n<li>47.<\/li>\n<li>48.<\/li>\n<li>49.<\/li>\n<li>50.<\/li>\n<li>51.<\/li>\n<li>52.<\/li>\n<li>53.<\/li>\n<li>54.<\/li>\n<li>55.<\/li>\n<li>56.<\/li>\n<li>57.<\/li>\n<li>58.<\/li>\n<li>59.<\/li>\n<li>60.<\/li>\n<li>61.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u53d1\u8d77\u8bf7\u6c42\u5982\u4e0b\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_24\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">config <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"configurable\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"thread_id\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"1\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">}<\/span>\r\n \r\ngraph<span class=\"token punctuation\">.<\/span><span class=\"token function\">invoke<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u4f60\u597d\uff0c\u6211\u53ebada\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> config<span class=\"token punctuation\">)<\/span>\r\ngraph<span class=\"token punctuation\">.<\/span><span class=\"token function\">invoke<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u8bf7\u5199\u4e00\u9996\u8bd7\uff0c\u5173\u4e8e\u5c0f\u72d7\u7684\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> config<span class=\"token punctuation\">)<\/span>\r\ngraph<span class=\"token punctuation\">.<\/span><span class=\"token function\">invoke<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u518d\u5199\u4e00\u9996\u5173\u4e8e\u5c0f\u732b\u7684\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> config<span class=\"token punctuation\">)<\/span>\r\nfinal_response <span class=\"token operator\">=<\/span> graph<span class=\"token punctuation\">.<\/span><span class=\"token function\">invoke<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u6211\u53eb\u4ec0\u4e48\u540d\u5b57\u5462\uff1f\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> config<span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_24\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u8f93\u51fa\u6253\u5370\u5982\u4e0b\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_25\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\"><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span>\r\nMessages being sent to the <span class=\"token function\">model<\/span> <span class=\"token punctuation\">(<\/span>trimmed to <span class=\"token operator\">&lt;=<\/span> <span class=\"token number\">128<\/span> tokens<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span> <span class=\"token number\">1<\/span>\r\n  <span class=\"token punctuation\">[<\/span><span class=\"token constant\">HUMAN<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">:<\/span> \u4f60\u597d\uff0c\u6211\u53ebada\r\n<span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span>\r\n\r\n<span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span>\r\nMessages being sent to the <span class=\"token function\">model<\/span> <span class=\"token punctuation\">(<\/span>trimmed to <span class=\"token operator\">&lt;=<\/span> <span class=\"token number\">128<\/span> tokens<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span> <span class=\"token number\">3<\/span>\r\n  <span class=\"token punctuation\">[<\/span><span class=\"token constant\">HUMAN<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">:<\/span> \u4f60\u597d\uff0c\u6211\u53ebada\r\n  <span class=\"token punctuation\">[<\/span><span class=\"token constant\">AI<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">:<\/span> \u4f60\u597d\uff0cAda\uff01\u5f88\u9ad8\u5174\u8ba4\u8bc6\u4f60\uff01\ud83d\ude0a\r\n\r\n\u8fd9\u662f\u4e00\u4e2a\u5f88\u7f8e\u7684\u540d\u5b57\u5462\uff01\u6709\u4ec0\u4e48\u6211\u53ef\u4ee5\u5e2e\u52a9\u4f60\u7684\u5417\uff1f\u65e0\u8bba\u662f\u60f3\u804a\u5929\u3001\u6709\u95ee\u9898\u9700\u8981\u89e3\u7b54\uff0c\u8fd8\u662f\u9700\u8981\u4efb\u4f55\u5f62\u5f0f\u7684\u5e2e\u52a9\uff0c\u6211\u90fd\u5f88\u4e50\u610f\u4e3a\u4f60\u670d\u52a1\u3002\r\n  <span class=\"token punctuation\">[<\/span><span class=\"token constant\">HUMAN<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">:<\/span> \u8bf7\u5199\u4e00\u9996\u8bd7\uff0c\u5173\u4e8e\u5c0f\u72d7\u7684\r\n<span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span>\r\n\r\n<span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span>\r\nMessages being sent to the <span class=\"token function\">model<\/span> <span class=\"token punctuation\">(<\/span>trimmed to <span class=\"token operator\">&lt;=<\/span> <span class=\"token number\">128<\/span> tokens<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span> <span class=\"token number\">5<\/span>\r\n  <span class=\"token punctuation\">[<\/span><span class=\"token constant\">HUMAN<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">:<\/span> \u4f60\u597d\uff0c\u6211\u53ebada\r\n  <span class=\"token punctuation\">[<\/span><span class=\"token constant\">AI<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">:<\/span> \u4f60\u597d\uff0cAda\uff01\u5f88\u9ad8\u5174\u8ba4\u8bc6\u4f60\uff01\ud83d\ude0a\r\n\r\n\u8fd9\u662f\u4e00\u4e2a\u5f88\u7f8e\u7684\u540d\u5b57\u5462\uff01\u6709\u4ec0\u4e48\u6211\u53ef\u4ee5\u5e2e\u52a9\u4f60\u7684\u5417\uff1f\u65e0\u8bba\u662f\u60f3\u804a\u5929\u3001\u6709\u95ee\u9898\u9700\u8981\u89e3\u7b54\uff0c\u8fd8\u662f\u9700\u8981\u4efb\u4f55\u5f62\u5f0f\u7684\u5e2e\u52a9\uff0c\u6211\u90fd\u5f88\u4e50\u610f\u4e3a\u4f60\u670d\u52a1\u3002\r\n  <span class=\"token punctuation\">[<\/span><span class=\"token constant\">HUMAN<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">:<\/span> \u8bf7\u5199\u4e00\u9996\u8bd7\uff0c\u5173\u4e8e\u5c0f\u72d7\u7684\r\n  <span class=\"token punctuation\">[<\/span><span class=\"token constant\">AI<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">:<\/span> \u597d\u7684\uff0cAda\uff01\u4e3a\u4f60\u5199\u4e00\u9996\u5173\u4e8e\u5c0f\u72d7\u7684\u53ef\u7231\u5c0f\u8bd7\uff0c\u5e0c\u671b\u4f60\u559c\u6b22\uff1a\r\n\r\n<span class=\"token operator\">**<\/span>\u300a\u5c0f\u72d7\u7684\u7ea6\u5b9a\u300b<span class=\"token operator\">**<\/span>\r\n<span class=\"token operator\">...<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span>  \uff08\u6b64\u5904\u7701\u7565\u8bd7\u7684\u5185\u5bb9\uff09\r\n\u8fd9\u9996\u8bd7\u6355\u6349\u4e86\u5c0f\u72d7\u7684\u6d3b\u6cfc\u3001\u5fe0\u8bda\u548c\u5b83\u4eec\u5e26\u7ed9\u6211\u4eec\u7684\u6e29\u6696\u3002\u4f60\u89c9\u5f97\u600e\u4e48\u6837\uff1f\ud83d\ude0a\r\n  <span class=\"token punctuation\">[<\/span><span class=\"token constant\">HUMAN<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">:<\/span> \u518d\u5199\u4e00\u9996\u5173\u4e8e\u5c0f\u732b\u7684\r\n<span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span>\r\n\r\n<span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span>\r\nMessages being sent to the <span class=\"token function\">model<\/span> <span class=\"token punctuation\">(<\/span>trimmed to <span class=\"token operator\">&lt;=<\/span> <span class=\"token number\">128<\/span> tokens<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span> <span class=\"token number\">3<\/span>\r\n  <span class=\"token punctuation\">[<\/span><span class=\"token constant\">HUMAN<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">:<\/span> \u518d\u5199\u4e00\u9996\u5173\u4e8e\u5c0f\u732b\u7684\r\n  <span class=\"token punctuation\">[<\/span><span class=\"token constant\">AI<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">:<\/span> \u597d\u7684\uff0cAda\uff01\u8fd9\u9996\u5173\u4e8e\u5c0f\u732b\u7684\u8bd7\uff0c\u5e0c\u671b\u540c\u6837\u80fd\u5e26\u7ed9\u4f60\u4e00\u4e1d\u8f7b\u76c8\u4e0e\u6e29\u67d4\uff1a\r\n\r\n<span class=\"token operator\">**<\/span>\u300a\u5c0f\u732b\u7684\u9050\u60f3\u300b<span class=\"token operator\">**<\/span>\r\n<span class=\"token operator\">...<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span>  \uff08\u6b64\u5904\u7701\u7565\u8bd7\u7684\u5185\u5bb9\uff09\r\n\u5e0c\u671b\u4f60\u559c\u6b22\u8fd9\u9996\u5c0f\u8bd7\uff01\ud83d\udc3e\r\n  <span class=\"token punctuation\">[<\/span><span class=\"token constant\">HUMAN<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">:<\/span> \u6211\u53eb\u4ec0\u4e48\u540d\u5b57\u5462\uff1f\r\n<span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><\/code><\/pre>\n<ul id=\"code_id_25\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<li>15.<\/li>\n<li>16.<\/li>\n<li>17.<\/li>\n<li>18.<\/li>\n<li>19.<\/li>\n<li>20.<\/li>\n<li>21.<\/li>\n<li>22.<\/li>\n<li>23.<\/li>\n<li>24.<\/li>\n<li>25.<\/li>\n<li>26.<\/li>\n<li>27.<\/li>\n<li>28.<\/li>\n<li>29.<\/li>\n<li>30.<\/li>\n<li>31.<\/li>\n<li>32.<\/li>\n<li>33.<\/li>\n<li>34.<\/li>\n<li>35.<\/li>\n<li>36.<\/li>\n<li>37.<\/li>\n<li>38.<\/li>\n<li>39.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u6a21\u578b\u6700\u7ec8\u7684\u8f93\u51fa\u4e3a\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/s2.51cto.com\/oss\/202512\/10\/53cdef784662455225d409813aa22ee1aad362.webp\" data-type=\"block\" \/><\/p>\n<p>\u53ef\u4ee5\u770b\u51fa\uff0c\u4f20\u9012\u7ed9\u6a21\u578b\u7684\u6d88\u606f\u5185\u5bb9\u5df2\u7ecf\u88ab\u88c1\u526a\uff0c\u4fee\u526a\u7684\u8fc7\u7a0b\u4e3a\uff1a<\/p>\n<ul data-id=\"u738a58b-qZIq2LJN\">\n<li data-id=\"ld70c578-4bqC3QZZ\">\u4fdd\u7559\u7cfb\u7edf\u6d88\u606f\uff0cinclude_system=True<\/li>\n<li data-id=\"ld70c578-ujjYTVrr\">strategy=&#8221;last&#8221;\uff0c\u53cd\u8f6c\u6d88\u606f\u5217\u8868\uff0c\u4ee5\u4fbf\u4ece\u6700\u65b0\u7684\u6d88\u606f\u5f00\u59cb\u5904\u7406<\/li>\n<li data-id=\"ld70c578-SiZvQowq\">\u7d2f\u79eftoken\u6570\u91cf\uff0c\u5f53\u8fbe\u5230max_tokens\u9650\u5236\uff0c\u90a3\u4e48\u8fdb\u884c\u4fee\u526a<\/li>\n<li data-id=\"ld70c578-diITo7TA\">\u4fee\u526a\u65f6\uff0c\u7531\u4e8eallow_partial=False\uff0c\u56e0\u6b64\uff0c\u4fdd\u7559\u7684\u6d88\u606f\u90fd\u662f\u5b8c\u6574\u7684\uff1b\u4e14start_notallow=&#8221;human&#8221;\uff0c\u6240\u4ee5\u4fee\u526a\u540e\u7b2c\u4e00\u6761\u975esystem prompt\u662f\u7528\u6237\u6d88\u606f<\/li>\n<\/ul>\n<p>\u867d\u7136\u5bf9\u4f20\u9012\u7ed9\u6a21\u578b\u7684\u5386\u53f2\u6d88\u606f\u8fdb\u884c\u4e86\u88c1\u526a\uff0c\u4f46\u662f\u67e5\u8be2state\u53ef\u4ee5\u53d1\u73b0\uff0c\u5386\u53f2\u8bb0\u5f55\u4ecd\u88ab\u5b8c\u6574\u7684\u4fdd\u7559\u5728\u5185\u5b58\u4e2d\uff0c\u6ca1\u6709\u88ab\u5220\u9664\u3002<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_26\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\"><span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\\n\"<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\"=\"<\/span><span class=\"token operator\">*<\/span><span class=\"token number\">30<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"  \u67e5\u770b thread_id='1' \u7684\u5b8c\u6574\u5bf9\u8bdd\u5386\u53f2\"<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"=\"<\/span><span class=\"token operator\">*<\/span><span class=\"token number\">30<\/span><span class=\"token punctuation\">)<\/span>\r\n \r\ncurrent_state <span class=\"token operator\">=<\/span> graph<span class=\"token punctuation\">.<\/span><span class=\"token function\">get_state<\/span><span class=\"token punctuation\">(<\/span>config<span class=\"token punctuation\">)<\/span>\r\nconversation_history <span class=\"token operator\">=<\/span> current_state<span class=\"token punctuation\">.<\/span>values<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"messages\"<\/span><span class=\"token punctuation\">]<\/span>\r\n \r\n<span class=\"token keyword\">for<\/span> message <span class=\"token keyword\">in<\/span> <span class=\"token literal-property property\">conversation_history<\/span><span class=\"token operator\">:<\/span>\r\n    <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>f<span class=\"token string\">\"[{message.type.upper()}]: {message.content}\"<\/span><span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_26\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>(2) \u5220\u9664\u6d88\u606f<\/strong><\/p>\n<p>\u8fd9\u79cd\u65b9\u6cd5\u5141\u8bb8\u4ece\u72b6\u6001\u4e2d\u6c38\u4e45\u79fb\u9664\u7279\u5b9a\u7684\u6d88\u606f\u3002\u8981\u5220\u9664\u6d88\u606f\uff0c\u4e0d\u80fd\u76f4\u63a5\u4ece\u72b6\u6001\u7684messages\u5217\u8868\u4e2d\u79fb\u9664\uff0c\u800c\u662f\u4f7f\u7528RemoveMessage\u51fd\u6570\uff0c\u4ecegraph state\u4e2d\u76f4\u63a5\u5220\u9664\u6d88\u606f\u6765\u7ba1\u7406\u5bf9\u8bdd\u5386\u53f2\u3002\u4e3a\u4e86\u8ba9RemoveMessage\u751f\u6548\uff0c\u9700\u8981\u4f7f\u7528\u5e26\u6709add_messages reducer\u7684\u72b6\u6001\u952e\uff0c\u4f8b\u5982MessagesState\u3002<\/p>\n<p>\u5220\u9664\u7279\u5b9a\u6d88\u606f\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_27\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">from langchain_core<span class=\"token punctuation\">.<\/span>messages <span class=\"token keyword\">import<\/span> RemoveMessage\r\nfrom langchain<span class=\"token punctuation\">.<\/span>chat_models <span class=\"token keyword\">import<\/span> init_chat_model\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>checkpoint<span class=\"token punctuation\">.<\/span>memory <span class=\"token keyword\">import<\/span> InMemorySaver\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>graph <span class=\"token keyword\">import<\/span> StateGraph<span class=\"token punctuation\">,<\/span> <span class=\"token constant\">START<\/span><span class=\"token punctuation\">,<\/span> MessagesState\r\n\r\n<span class=\"token constant\">BASE_URL<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n<span class=\"token constant\">TOKEN<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n<span class=\"token constant\">MODEL_NAME<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n\r\nmodel <span class=\"token operator\">=<\/span> <span class=\"token function\">init_chat_model<\/span><span class=\"token punctuation\">(<\/span>\r\n    model<span class=\"token operator\">=<\/span><span class=\"token constant\">MODEL_NAME<\/span><span class=\"token punctuation\">,<\/span>\r\n    model_provider<span class=\"token operator\">=<\/span><span class=\"token string\">\"openai\"<\/span><span class=\"token punctuation\">,<\/span> \r\n    base_url<span class=\"token operator\">=<\/span><span class=\"token constant\">BASE_URL<\/span><span class=\"token punctuation\">,<\/span>\r\n    api_key<span class=\"token operator\">=<\/span><span class=\"token constant\">TOKEN<\/span><span class=\"token punctuation\">,<\/span>\r\n    temperature<span class=\"token operator\">=<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\ndef <span class=\"token function\">delete_messages<\/span><span class=\"token punctuation\">(<\/span>state<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n    messages <span class=\"token operator\">=<\/span> state<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"messages\"<\/span><span class=\"token punctuation\">]<\/span>\r\n    <span class=\"token keyword\">if<\/span> <span class=\"token function\">len<\/span><span class=\"token punctuation\">(<\/span>messages<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">2<\/span><span class=\"token operator\">:<\/span>\r\n   # \u5220\u9664\u6700\u65e9\u7684\u4e24\u6761\u6d88\u606f\r\n   <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token function\">RemoveMessage<\/span><span class=\"token punctuation\">(<\/span>id<span class=\"token operator\">=<\/span>m<span class=\"token punctuation\">.<\/span>id<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">for<\/span> m <span class=\"token keyword\">in<\/span> messages<span class=\"token punctuation\">[<\/span><span class=\"token operator\">:<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span>\r\n    \r\ndef <span class=\"token function\">call_model<\/span><span class=\"token punctuation\">(<\/span>state<span class=\"token operator\">:<\/span> MessagesState<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n    response <span class=\"token operator\">=<\/span> model<span class=\"token punctuation\">.<\/span><span class=\"token function\">invoke<\/span><span class=\"token punctuation\">(<\/span>state<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"messages\"<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> response<span class=\"token punctuation\">}<\/span>\r\n\r\nbuilder <span class=\"token operator\">=<\/span> <span class=\"token function\">StateGraph<\/span><span class=\"token punctuation\">(<\/span>MessagesState<span class=\"token punctuation\">)<\/span>\r\nbuilder<span class=\"token punctuation\">.<\/span><span class=\"token function\">add_sequence<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span>call_model<span class=\"token punctuation\">,<\/span> delete_messages<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span>\r\nbuilder<span class=\"token punctuation\">.<\/span><span class=\"token function\">add_edge<\/span><span class=\"token punctuation\">(<\/span><span class=\"token constant\">START<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"call_model\"<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\ncheckpointer <span class=\"token operator\">=<\/span> <span class=\"token function\">InMemorySaver<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\napp <span class=\"token operator\">=<\/span> builder<span class=\"token punctuation\">.<\/span><span class=\"token function\">compile<\/span><span class=\"token punctuation\">(<\/span>checkpointer<span class=\"token operator\">=<\/span>checkpointer<span class=\"token punctuation\">)<\/span>\r\nconfig <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"configurable\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"thread_id\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"1\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">}<\/span>\r\n\r\n<span class=\"token keyword\">for<\/span> event <span class=\"token keyword\">in<\/span> app<span class=\"token punctuation\">.<\/span><span class=\"token function\">stream<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"role\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"user\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string-property property\">\"content\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u4f60\u597d\uff0c\u6211\u662fada\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\r\n    config<span class=\"token punctuation\">,<\/span>\r\n    stream_mode<span class=\"token operator\">=<\/span><span class=\"token string\">\"values\"<\/span>\r\n<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n    <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">(<\/span>message<span class=\"token punctuation\">.<\/span>type<span class=\"token punctuation\">,<\/span> message<span class=\"token punctuation\">.<\/span>content<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">for<\/span> message <span class=\"token keyword\">in<\/span> event<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"messages\"<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\n<span class=\"token keyword\">for<\/span> event <span class=\"token keyword\">in<\/span> app<span class=\"token punctuation\">.<\/span><span class=\"token function\">stream<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"role\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"user\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string-property property\">\"content\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u6211\u53eb\u4ec0\u4e48\u540d\u5b57\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\r\n    config<span class=\"token punctuation\">,<\/span>\r\n    stream_mode<span class=\"token operator\">=<\/span><span class=\"token string\">\"values\"<\/span>\r\n<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n    <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">(<\/span>message<span class=\"token punctuation\">.<\/span>type<span class=\"token punctuation\">,<\/span> message<span class=\"token punctuation\">.<\/span>content<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">for<\/span> message <span class=\"token keyword\">in<\/span> event<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"messages\"<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_27\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<li>15.<\/li>\n<li>16.<\/li>\n<li>17.<\/li>\n<li>18.<\/li>\n<li>19.<\/li>\n<li>20.<\/li>\n<li>21.<\/li>\n<li>22.<\/li>\n<li>23.<\/li>\n<li>24.<\/li>\n<li>25.<\/li>\n<li>26.<\/li>\n<li>27.<\/li>\n<li>28.<\/li>\n<li>29.<\/li>\n<li>30.<\/li>\n<li>31.<\/li>\n<li>32.<\/li>\n<li>33.<\/li>\n<li>34.<\/li>\n<li>35.<\/li>\n<li>36.<\/li>\n<li>37.<\/li>\n<li>38.<\/li>\n<li>39.<\/li>\n<li>40.<\/li>\n<li>41.<\/li>\n<li>42.<\/li>\n<li>43.<\/li>\n<li>44.<\/li>\n<li>45.<\/li>\n<li>46.<\/li>\n<li>47.<\/li>\n<li>48.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u8f93\u51fa\u5982\u4e0b\uff0c\u5f53\u8bf7\u6c42\u5b8c\u6210\u65f6\uff0c\u5982\u679c\u6d88\u606f\u6570\u91cf&gt;2\uff0c\u90a3\u4e48\u6700\u65e9\u7684\u4e24\u6761\u6d88\u606f\u4f1a\u88ab\u5220\u9664\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/s2.51cto.com\/oss\/202512\/10\/f8426d123ced7e78f4d823fba615da3e977128.webp\" data-type=\"block\" \/><\/p>\n<p>\u6e05\u7a7a\u6240\u6709\u6d88\u606f\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_28\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">from langgraph<span class=\"token punctuation\">.<\/span>graph<span class=\"token punctuation\">.<\/span>message <span class=\"token keyword\">import<\/span> <span class=\"token constant\">REMOVE_ALL_MESSAGES<\/span>\r\n \r\ndef <span class=\"token function\">clear_messages<\/span><span class=\"token punctuation\">(<\/span>state<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n    <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token function\">RemoveMessage<\/span><span class=\"token punctuation\">(<\/span>id<span class=\"token operator\">=<\/span><span class=\"token constant\">REMOVE_ALL_MESSAGES<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span>\r\n\r\nbuilder <span class=\"token operator\">=<\/span> <span class=\"token function\">StateGraph<\/span><span class=\"token punctuation\">(<\/span>MessagesState<span class=\"token punctuation\">)<\/span>\r\nbuilder<span class=\"token punctuation\">.<\/span><span class=\"token function\">add_sequence<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span>call_model<span class=\"token punctuation\">,<\/span> clear_messages<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span>\r\nbuilder<span class=\"token punctuation\">.<\/span><span class=\"token function\">add_edge<\/span><span class=\"token punctuation\">(<\/span><span class=\"token constant\">START<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"call_model\"<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\ncheckpointer <span class=\"token operator\">=<\/span> <span class=\"token function\">InMemorySaver<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\napp <span class=\"token operator\">=<\/span> builder<span class=\"token punctuation\">.<\/span><span class=\"token function\">compile<\/span><span class=\"token punctuation\">(<\/span>checkpointer<span class=\"token operator\">=<\/span>checkpointer<span class=\"token punctuation\">)<\/span>\r\nconfig <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"configurable\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"thread_id\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"1\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">}<\/span>\r\n\r\n<span class=\"token keyword\">for<\/span> event <span class=\"token keyword\">in<\/span> app<span class=\"token punctuation\">.<\/span><span class=\"token function\">stream<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"role\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"user\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string-property property\">\"content\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u4f60\u597d\uff0c\u6211\u662fada\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\r\n    config<span class=\"token punctuation\">,<\/span>\r\n    stream_mode<span class=\"token operator\">=<\/span><span class=\"token string\">\"values\"<\/span>\r\n<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n    <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">(<\/span>message<span class=\"token punctuation\">.<\/span>type<span class=\"token punctuation\">,<\/span> message<span class=\"token punctuation\">.<\/span>content<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">for<\/span> message <span class=\"token keyword\">in<\/span> event<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"messages\"<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\n<span class=\"token keyword\">for<\/span> event <span class=\"token keyword\">in<\/span> app<span class=\"token punctuation\">.<\/span><span class=\"token function\">stream<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"role\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"user\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string-property property\">\"content\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u6211\u53eb\u4ec0\u4e48\u540d\u5b57\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\r\n    config<span class=\"token punctuation\">,<\/span>\r\n    stream_mode<span class=\"token operator\">=<\/span><span class=\"token string\">\"values\"<\/span>\r\n<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n    <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">(<\/span>message<span class=\"token punctuation\">.<\/span>type<span class=\"token punctuation\">,<\/span> message<span class=\"token punctuation\">.<\/span>content<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">for<\/span> message <span class=\"token keyword\">in<\/span> event<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"messages\"<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_28\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<li>15.<\/li>\n<li>16.<\/li>\n<li>17.<\/li>\n<li>18.<\/li>\n<li>19.<\/li>\n<li>20.<\/li>\n<li>21.<\/li>\n<li>22.<\/li>\n<li>23.<\/li>\n<li>24.<\/li>\n<li>25.<\/li>\n<li>26.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u8f93\u51fa\u5982\u4e0b\uff0c\u8bf7\u6c42\u5b8c\u6210\u540e\uff0c\u4f1a\u7acb\u5373\u5220\u9664\u6240\u6709\u6d88\u606f\u8bb0\u5f55\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/s2.51cto.com\/oss\/202512\/10\/6526d0362653605a9db438b9b09af1e98adc89.webp\" data-type=\"block\" \/><\/p>\n<p><strong>(3) \u603b\u7ed3\u6d88\u606f<\/strong><\/p>\n<p>\u901a\u8fc7\u4fee\u526a\u3001\u5220\u9664\u6765\u7ba1\u7406\u5386\u53f2\u6d88\u606f\uff0c\u4f1a\u6709\u4e22\u5931\u4fe1\u606f\u7684\u95ee\u9898\u3002\u4e3a\u4e86\u907f\u514d\u8fd9\u4e2a\u95ee\u9898\uff0c\u53ef\u4ee5\u8fdb\u884c\u6d88\u606f\u603b\u7ed3\uff0c\u4e5f\u5c31\u662f\u901a\u8fc7\u8c03\u7528LLM\u5bf9\u5386\u53f2\u5bf9\u8bdd\u8fdb\u884c\u6458\u8981\uff0c\u5e76\u5c06\u6458\u8981\u4f5c\u4e3a\u65b0\u7684\u4e0a\u4e0b\u6587\u4f20\u5165\uff0c\u4ee5\u5728\u51cf\u5c11\u6d88\u606f\u6570\u91cf\u7684\u540c\u65f6\u4fdd\u7559\u5173\u952e\u4fe1\u606f\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/s2.51cto.com\/oss\/202512\/10\/f614b2d83d1e0c4c6943221f1d48f38ba651dc.webp\" data-type=\"block\" \/><\/p>\n<p>\u2460 \u9996\u5148\uff0c\u5b89\u88c5LangMem\uff0c\u8fd9\u662f\u4e00\u4e2a\u7531LangChain\u7ef4\u62a4\u7684\u5e93\uff0c\u63d0\u4f9b\u4e86\u7528\u4e8e\u5728agent\u4e2d\u7ba1\u7406\u8bb0\u5fc6\u7684\u5de5\u5177\u3002<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_29\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">pip install <span class=\"token operator\">-<\/span><span class=\"token constant\">U<\/span> langmem<\/code><\/pre>\n<ul id=\"code_id_29\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u2461 langmem\u5e93\u63d0\u4f9b\u4e86\u4e00\u4e2a\u9884\u6784\u5efa\u7684SummarizationNode\uff0c\u53ef\u4ee5\u6781\u5927\u5730\u7b80\u5316\u5b9e\u73b0\u8fc7\u7a0b\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_30\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\"><span class=\"token keyword\">import<\/span> tiktoken\r\nfrom typing <span class=\"token keyword\">import<\/span> Any<span class=\"token punctuation\">,<\/span> TypedDict\r\n\r\nfrom langchain<span class=\"token punctuation\">.<\/span>chat_models <span class=\"token keyword\">import<\/span> init_chat_model\r\nfrom langchain_core<span class=\"token punctuation\">.<\/span>messages <span class=\"token keyword\">import<\/span> AnyMessage<span class=\"token punctuation\">,<\/span> BaseMessage<span class=\"token punctuation\">,<\/span> SystemMessage\r\nfrom langchain_core<span class=\"token punctuation\">.<\/span>prompts <span class=\"token keyword\">import<\/span> ChatPromptTemplate<span class=\"token punctuation\">,<\/span> MessagesPlaceholder\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>graph <span class=\"token keyword\">import<\/span> StateGraph<span class=\"token punctuation\">,<\/span> <span class=\"token constant\">START<\/span><span class=\"token punctuation\">,<\/span> MessagesState\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>checkpoint<span class=\"token punctuation\">.<\/span>memory <span class=\"token keyword\">import<\/span> InMemorySaver\r\nfrom langmem<span class=\"token punctuation\">.<\/span>short_term <span class=\"token keyword\">import<\/span> SummarizationNode<span class=\"token punctuation\">,<\/span> RunningSummary\r\n\r\nsummary_prompt <span class=\"token operator\">=<\/span> ChatPromptTemplate<span class=\"token punctuation\">.<\/span><span class=\"token function\">from_messages<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token punctuation\">[<\/span>\r\n   <span class=\"token function\">MessagesPlaceholder<\/span><span class=\"token punctuation\">(<\/span>variable_name<span class=\"token operator\">=<\/span><span class=\"token string\">\"messages\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\r\n   # \u4f7f\u7528 HumanMessage <span class=\"token function\">\u6a21\u62df\u7528\u6237\u5728\u6700\u540e\u53d1\u51fa\u603b\u7ed3\u6307\u4ee4<\/span>\r\n   <span class=\"token punctuation\">(<\/span><span class=\"token string\">\"human\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"\u8bf7\u6839\u636e\u4ee5\u4e0a\u5bf9\u8bdd\uff0c\u751f\u6210\u4e00\u6bb5\u7b80\u6d01\u3001\u8fde\u8d2f\u7684\u4e2d\u6587\u6458\u8981\uff0c\u6ce8\u610f\u4e0d\u8981\u4e22\u5931\u7ec6\u8282\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\r\n    <span class=\"token punctuation\">]<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\nupdate_summary_prompt <span class=\"token operator\">=<\/span> ChatPromptTemplate<span class=\"token punctuation\">.<\/span><span class=\"token function\">from_messages<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token punctuation\">[<\/span>\r\n   <span class=\"token function\">MessagesPlaceholder<\/span><span class=\"token punctuation\">(<\/span>variable_name<span class=\"token operator\">=<\/span><span class=\"token string\">\"messages\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\r\n   # \u4f7f\u7528 HumanMessage <span class=\"token function\">\u6a21\u62df\u7528\u6237\u5728\u6700\u540e\u53d1\u51fa\u603b\u7ed3\u6307\u4ee4<\/span>\r\n   <span class=\"token punctuation\">(<\/span><span class=\"token string\">\"human\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"\u4ee5\u4e0b\u662f\u76ee\u524d\u4e3a\u6b62\u7684\u5bf9\u8bdd\u6458\u8981\uff1a{existing_summary}\\n\\n\u8bf7\u6839\u636e\u4ee5\u4e0a\u65b0\u6d88\u606f\u6269\u5c55\u6b64\u6458\u8981\uff1a\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\r\n    <span class=\"token punctuation\">]<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\n<span class=\"token constant\">BASE_URL<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n<span class=\"token constant\">TOKEN<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n<span class=\"token constant\">MODEL_NAME<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n\r\nmodel <span class=\"token operator\">=<\/span> <span class=\"token function\">init_chat_model<\/span><span class=\"token punctuation\">(<\/span>\r\n    model<span class=\"token operator\">=<\/span><span class=\"token constant\">MODEL_NAME<\/span><span class=\"token punctuation\">,<\/span>\r\n    model_provider<span class=\"token operator\">=<\/span><span class=\"token string\">\"openai\"<\/span><span class=\"token punctuation\">,<\/span> \r\n    base_url<span class=\"token operator\">=<\/span><span class=\"token constant\">BASE_URL<\/span><span class=\"token punctuation\">,<\/span>\r\n    api_key<span class=\"token operator\">=<\/span><span class=\"token constant\">TOKEN<\/span><span class=\"token punctuation\">,<\/span>\r\n    temperature<span class=\"token operator\">=<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\nsummarization_model <span class=\"token operator\">=<\/span> <span class=\"token function\">model<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span>max_tokens<span class=\"token operator\">=<\/span><span class=\"token number\">128<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\n# count_tokens_approximately\u66f4\u9002\u5408\u82f1\u6587\u5206\u8bcd\uff0c\u4e2d\u6587\u8fd9\u91cc\u4f7f\u7528tiktoken\u6765\u8ba1\u7b97token\u6570\u91cf\r\nencoding <span class=\"token operator\">=<\/span> tiktoken<span class=\"token punctuation\">.<\/span><span class=\"token function\">get_encoding<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"cl100k_base\"<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\ndef <span class=\"token function\">count_tokens_accurately<\/span><span class=\"token punctuation\">(<\/span>messages<span class=\"token operator\">:<\/span> list<span class=\"token punctuation\">[<\/span>BaseMessage<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-<\/span><span class=\"token operator\">&gt;<\/span> int<span class=\"token operator\">:<\/span>\r\n    <span class=\"token string\">\"\"<\/span><span class=\"token string\">\"\u4f7f\u7528 tiktoken \u7cbe\u786e\u8ba1\u7b97\u6d88\u606f\u5217\u8868\u7684 token \u603b\u6570\"<\/span><span class=\"token string\">\"\"<\/span>\r\n    # \u6ce8\u610f\uff1alangmem \u7684 token_counter \u671f\u671b\u7684\u8f93\u5165\u662f\u6d88\u606f\u5217\u8868\r\n    text_content <span class=\"token operator\">=<\/span> <span class=\"token string\">\" \"<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span>msg<span class=\"token punctuation\">.<\/span>content <span class=\"token keyword\">for<\/span> msg <span class=\"token keyword\">in<\/span> messages <span class=\"token keyword\">if<\/span> <span class=\"token function\">isinstance<\/span><span class=\"token punctuation\">(<\/span>msg<span class=\"token punctuation\">.<\/span>content<span class=\"token punctuation\">,<\/span> str<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token keyword\">return<\/span> <span class=\"token function\">len<\/span><span class=\"token punctuation\">(<\/span>encoding<span class=\"token punctuation\">.<\/span><span class=\"token function\">encode<\/span><span class=\"token punctuation\">(<\/span>text_content<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">State<\/span><span class=\"token punctuation\">(<\/span>MessagesState<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n    <span class=\"token literal-property property\">context<\/span><span class=\"token operator\">:<\/span> dict<span class=\"token punctuation\">[<\/span>str<span class=\"token punctuation\">,<\/span> RunningSummary<span class=\"token punctuation\">]<\/span>  \r\n\r\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">LLMInputState<\/span><span class=\"token punctuation\">(<\/span>TypedDict<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>  \r\n    <span class=\"token literal-property property\">summarized_messages<\/span><span class=\"token operator\">:<\/span> list<span class=\"token punctuation\">[<\/span>AnyMessage<span class=\"token punctuation\">]<\/span>\r\n    <span class=\"token literal-property property\">context<\/span><span class=\"token operator\">:<\/span> dict<span class=\"token punctuation\">[<\/span>str<span class=\"token punctuation\">,<\/span> RunningSummary<span class=\"token punctuation\">]<\/span>\r\n\r\nsummarization_node <span class=\"token operator\">=<\/span> <span class=\"token function\">SummarizationNode<\/span><span class=\"token punctuation\">(<\/span>  \r\n#token_counter<span class=\"token operator\">=<\/span>count_tokens_approximately<span class=\"token punctuation\">,<\/span>\r\n    token_counter<span class=\"token operator\">=<\/span>count_tokens_accurately<span class=\"token punctuation\">,<\/span>  # \u66f4\u6362\u4e3a\u81ea\u5b9a\u4e49\u7684token\u8ba1\u7b97\u5de5\u5177\r\n    model<span class=\"token operator\">=<\/span>summarization_model<span class=\"token punctuation\">,<\/span>\r\n    max_tokens<span class=\"token operator\">=<\/span><span class=\"token number\">256<\/span><span class=\"token punctuation\">,<\/span>\r\n    max_tokens_before_summary<span class=\"token operator\">=<\/span><span class=\"token number\">256<\/span><span class=\"token punctuation\">,<\/span>\r\n    max_summary_tokens<span class=\"token operator\">=<\/span><span class=\"token number\">128<\/span><span class=\"token punctuation\">,<\/span>\r\n    initial_summary_prompt<span class=\"token operator\">=<\/span>summary_prompt<span class=\"token punctuation\">,<\/span>  # \u4f7f\u7528\u81ea\u5b9a\u4e49prompt\uff0c\u9ed8\u8ba4\u4e3a\u82f1\u6587\r\n    existing_summary_prompt<span class=\"token operator\">=<\/span>update_summary_prompt\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\ndef <span class=\"token function\">call_model<\/span><span class=\"token punctuation\">(<\/span>state<span class=\"token operator\">:<\/span> LLMInputState<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n    response <span class=\"token operator\">=<\/span> model<span class=\"token punctuation\">.<\/span><span class=\"token function\">invoke<\/span><span class=\"token punctuation\">(<\/span>state<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"summarized_messages\"<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span>response<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span>\r\n\r\ncheckpointer <span class=\"token operator\">=<\/span> <span class=\"token function\">InMemorySaver<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\nbuilder <span class=\"token operator\">=<\/span> <span class=\"token function\">StateGraph<\/span><span class=\"token punctuation\">(<\/span>State<span class=\"token punctuation\">)<\/span>\r\nbuilder<span class=\"token punctuation\">.<\/span><span class=\"token function\">add_node<\/span><span class=\"token punctuation\">(<\/span>call_model<span class=\"token punctuation\">)<\/span>\r\nbuilder<span class=\"token punctuation\">.<\/span><span class=\"token function\">add_node<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"summarize\"<\/span><span class=\"token punctuation\">,<\/span> summarization_node<span class=\"token punctuation\">)<\/span>  \r\nbuilder<span class=\"token punctuation\">.<\/span><span class=\"token function\">add_edge<\/span><span class=\"token punctuation\">(<\/span><span class=\"token constant\">START<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"summarize\"<\/span><span class=\"token punctuation\">)<\/span>\r\nbuilder<span class=\"token punctuation\">.<\/span><span class=\"token function\">add_edge<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"summarize\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"call_model\"<\/span><span class=\"token punctuation\">)<\/span>\r\ngraph <span class=\"token operator\">=<\/span> builder<span class=\"token punctuation\">.<\/span><span class=\"token function\">compile<\/span><span class=\"token punctuation\">(<\/span>checkpointer<span class=\"token operator\">=<\/span>checkpointer<span class=\"token punctuation\">)<\/span>\r\n\r\n# Invoke the graph\r\nconfig <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"configurable\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"thread_id\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"1\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">}<\/span>\r\ngraph<span class=\"token punctuation\">.<\/span><span class=\"token function\">invoke<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u4f60\u597d\uff0c\u6211\u53ebada\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> config<span class=\"token punctuation\">)<\/span>\r\ngraph<span class=\"token punctuation\">.<\/span><span class=\"token function\">invoke<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u8bf7\u5199\u4e00\u9996\u8bd7\uff0c\u5173\u4e8e\u5c0f\u72d7\u7684\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> config<span class=\"token punctuation\">)<\/span>\r\ngraph<span class=\"token punctuation\">.<\/span><span class=\"token function\">invoke<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u518d\u5199\u4e00\u9996\u5173\u4e8e\u5c0f\u732b\u7684\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> config<span class=\"token punctuation\">)<\/span>\r\nfinal_response <span class=\"token operator\">=<\/span> graph<span class=\"token punctuation\">.<\/span><span class=\"token function\">invoke<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u6211\u53eb\u4ec0\u4e48\u540d\u5b57\uff1f\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> config<span class=\"token punctuation\">)<\/span>\r\n\r\nfinal_response<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"messages\"<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span><span class=\"token operator\">-<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">pretty_print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n# \u68c0\u67e5\u6458\u8981\u662f\u5426\u751f\u6210\r\n<span class=\"token keyword\">if<\/span><span class=\"token string\">\"running_summary\"<\/span><span class=\"token keyword\">in<\/span> final_response<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"context\"<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">:<\/span>\r\n    <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\\n\u751f\u6210\u7684\u6458\u8981:\"<\/span><span class=\"token punctuation\">,<\/span> final_response<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"context\"<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string\">\"running_summary\"<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>summary<span class=\"token punctuation\">)<\/span>\r\n<span class=\"token keyword\">else<\/span><span class=\"token operator\">:<\/span>\r\n    <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\\n\u5bf9\u8bdd\u8f83\u77ed\uff0c\u5c1a\u672a\u751f\u6210\u6458\u8981\u3002\"<\/span><span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_30\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<li>15.<\/li>\n<li>16.<\/li>\n<li>17.<\/li>\n<li>18.<\/li>\n<li>19.<\/li>\n<li>20.<\/li>\n<li>21.<\/li>\n<li>22.<\/li>\n<li>23.<\/li>\n<li>24.<\/li>\n<li>25.<\/li>\n<li>26.<\/li>\n<li>27.<\/li>\n<li>28.<\/li>\n<li>29.<\/li>\n<li>30.<\/li>\n<li>31.<\/li>\n<li>32.<\/li>\n<li>33.<\/li>\n<li>34.<\/li>\n<li>35.<\/li>\n<li>36.<\/li>\n<li>37.<\/li>\n<li>38.<\/li>\n<li>39.<\/li>\n<li>40.<\/li>\n<li>41.<\/li>\n<li>42.<\/li>\n<li>43.<\/li>\n<li>44.<\/li>\n<li>45.<\/li>\n<li>46.<\/li>\n<li>47.<\/li>\n<li>48.<\/li>\n<li>49.<\/li>\n<li>50.<\/li>\n<li>51.<\/li>\n<li>52.<\/li>\n<li>53.<\/li>\n<li>54.<\/li>\n<li>55.<\/li>\n<li>56.<\/li>\n<li>57.<\/li>\n<li>58.<\/li>\n<li>59.<\/li>\n<li>60.<\/li>\n<li>61.<\/li>\n<li>62.<\/li>\n<li>63.<\/li>\n<li>64.<\/li>\n<li>65.<\/li>\n<li>66.<\/li>\n<li>67.<\/li>\n<li>68.<\/li>\n<li>69.<\/li>\n<li>70.<\/li>\n<li>71.<\/li>\n<li>72.<\/li>\n<li>73.<\/li>\n<li>74.<\/li>\n<li>75.<\/li>\n<li>76.<\/li>\n<li>77.<\/li>\n<li>78.<\/li>\n<li>79.<\/li>\n<li>80.<\/li>\n<li>81.<\/li>\n<li>82.<\/li>\n<li>83.<\/li>\n<li>84.<\/li>\n<li>85.<\/li>\n<li>86.<\/li>\n<li>87.<\/li>\n<li>88.<\/li>\n<li>89.<\/li>\n<li>90.<\/li>\n<li>91.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u8f93\u51fa\u5982\u4e0b\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/s2.51cto.com\/oss\/202512\/10\/56930dc8377082d5d88266361c1b0f9dc34f86.webp\" data-type=\"block\" \/><\/p>\n<p>\u5982\u679c\u9700\u8981\u5728agent\u4e2d\u5b9e\u73b0\u7684\u8bdd\uff0c\u90a3\u4e48\u5c06SummarizationNode\u4f20\u5165pre_model_hook\u5373\u53ef\u3002SummarizationNode\u4f1a\u81ea\u52a8\u68c0\u67e5\u5386\u53f2\u6d88\u606f\u7684\u957f\u5ea6\uff0c\u5f53token\u6570\u91cf\u8d85\u8fc7\u9608\u503c\u65f6\uff0c\u89e6\u53d1\u4e00\u6b21\u603b\u7ed3\uff0c\u7136\u540e\u5c06\u201d\u6458\u8981 + \u6700\u65b0\u6d88\u606f\u201c\u7684\u7ec4\u5408\u4f20\u9012\u7ed9model\u3002\u5176\u4e2d\uff0cinitial_summary_prompt\u7528\u4e8e\u7b2c\u4e00\u6b21\u751f\u6210\u6458\u8981\u65f6\u7684prompt\u6a21\u677f\uff0cexisting_summary_prompt\u7528\u4e8e\u66f4\u65b0\u73b0\u6709\u6458\u8981\u7684prompt\u6a21\u677f\uff0cfinal_prompt\u662f\u5c06\u6458\u8981\u4e0e\u5269\u4f59\u7684\u6d88\u606f\u5408\u5e76\u540e\u7684prompt\u6a21\u677f\u3002<\/p>\n<p>State\u4e2d\u7684context\u5b57\u6bb5\u7528\u4e8e\u5b58\u50a8\u8fd0\u884c\u4e2d\u7684\u6458\u8981\u4fe1\u606f\uff0c \u907f\u514d\u5728\u6bcf\u6b21\u8c03\u7528\u65f6\u90fd\u91cd\u590d\u603b\u7ed3\u3002<\/p>\n<p><strong>(4) \u68c0\u67e5\u70b9\u7ba1\u7406<\/strong><\/p>\n<p>\u5bf9\u6709\u72b6\u6001\u7684agent\u7684\u8bb0\u5fc6\u8fdb\u884c\u68c0\u67e5\u3001\u7ba1\u7406\u548c\u91cd\u7f6e\uff0c\u5bf9\u4e8e\u76d1\u63a7agent\u548c\u63d0\u9ad8\u7528\u6237\u4f7f\u7528\u4f53\u9a8c\u90fd\u5fc5\u4e0d\u53ef\u5c11\uff0cLangGraph\u63d0\u4f9b\u4e86\u4ee5\u4e0b\u7684\u4e00\u4e9b\u5de5\u5177\uff0c\u7528\u6765\u5bf9\u68c0\u67e5\u70b9\u8fdb\u884c\u7ba1\u7406\u3002<\/p>\n<p>\u67e5\u770b\u6700\u8fd1\u7684\u77ed\u671f\u8bb0\u5fc6\uff0c\u4e5f\u5c31\u662f\u6700\u8fd1\u7684\u68c0\u67e5\u70b9\u7684\u72b6\u6001\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_31\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">graph<span class=\"token punctuation\">.<\/span><span class=\"token function\">get_state<\/span><span class=\"token punctuation\">(<\/span>cnotallow<span class=\"token operator\">=<\/span>config<span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_31\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u67e5\u770b\u7ebf\u7a0b\u7684\u6240\u6709\u77ed\u671f\u8bb0\u5fc6\uff0c\u4f1a\u6309\u65f6\u95f4\u987a\u5e8f\u8fd4\u56de\u8fd9\u4e2a\u7ebf\u7a0b\u6240\u6709\u7684\u5386\u53f2\u68c0\u67e5\u70b9\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_32\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">graph<span class=\"token punctuation\">.<\/span><span class=\"token function\">get_state_history<\/span><span class=\"token punctuation\">(<\/span>cnotallow<span class=\"token operator\">=<\/span>config<span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_32\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u5220\u9664\u4e00\u4e2a\u7ebf\u7a0b\u7684\u6240\u6709\u77ed\u671f\u8bb0\u5fc6\uff0c\u4e00\u822c\u7528\u4e8e\u91cd\u542f\u5bf9\u8bdd\u573a\u666f\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_33\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">checkpointer<span class=\"token punctuation\">.<\/span><span class=\"token function\">delete_thread<\/span><span class=\"token punctuation\">(<\/span>thread_id<span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_33\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h4>5. \u5f15\u5165MCP\u534f\u8bae\u6784\u5efa\u771f\u5b9e\u7684Agent\u957f\u8bb0\u5fc6\u5e94\u7528<\/h4>\n<p>\u672c\u8282\u5c06\u4ecb\u7ecd\u5982\u4f55\u57fa\u4e8eModel Context Protocol\uff08MCP\uff09\u534f\u8bae\uff0c\u4f7f\u7528LangGraph-Supervisor\u6846\u67b6\u6784\u5efa\u4e00\u4e2a\u5b9e\u7528\u7684\u3001\u96c6\u6210\u4e2d\u65ad\u673a\u5236\u3001\u6709\u957f\u8bb0\u5fc6\u7684\u591aAgent\u7cfb\u7edf\u3002MCP\u662f\u4e00\u79cd\u793e\u533a\u5171\u5efa\u7684AI\u5f00\u653e\u534f\u8bae\uff0c\u5b83\u6807\u51c6\u5316\u4e86\u5e94\u7528\u5411AI\u63d0\u4f9b\u4e0a\u4e0b\u6587\u7684\u65b9\u5f0f\uff0c\u6781\u5927\u7b80\u5316\u4e86\u5de5\u5177\u96c6\u6210\u8fc7\u7a0b\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u4ece\u5934\u5f00\u59cb\u642d\u5efamulti-agent\u7cfb\u7edf\uff0c\u6a21\u62df\u4e00\u4e2a\u7528\u6237\u53bb\u8fdb\u884c\u65c5\u6e38\u4fe1\u606f\u67e5\u8be2\uff0c\u5e76\u8fdb\u884c\u9152\u5e97\u9884\u5b9a\uff0c\u7136\u540e\u9152\u5e97\u7ba1\u7406\u4fa7\u53ef\u4ee5\u67e5\u8be2\u7528\u6237\u7684\u9884\u5b9a\u4fe1\u606f\u3002\u6574\u4e2aDemo\u6211\u4eec\u5c06\u5c55\u793aSupervisor\u6846\u67b6\u7684\u642d\u5efa\u3001\u4eba\u5de5\u4ecb\u5165\u3001\u957f\u77ed\u671f\u8bb0\u5fc6\u7684\u5e94\u7528\u7b49\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/s2.51cto.com\/oss\/202512\/10\/4172c3649cbd0ff19646253cf1b98c25a57150.webp\" data-type=\"block\" \/><\/p>\n<p>\u6211\u4eec\u5c06\u9010\u6b65\u6784\u5efamulti-agent\u5de5\u4f5c\u6d41\u7684\u6bcf\u4e2a\u7ec4\u4ef6\uff0c\u5b83\u5305\u542b\u4e09\u4e2a\u5b50\u667a\u80fd\u4f53\uff0c\u4e09\u4e2a\u4e13\u95e8\u7684 ReAct\uff08\u63a8\u7406\u548c\u884c\u52a8\uff09\u5b50\u667a\u80fd\u4f53\uff0c\u7136\u540e\u5b83\u4eec\u5c06\u7ec4\u5408\u8d77\u6765\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u989d\u5916\u6b65\u9aa4\u7684\u591a\u667a\u80fd\u4f53\u5de5\u4f5c\u6d41\u3002<\/p>\n<p>\u6211\u4eec\u7684\u5de5\u4f5c\u6d41\u4ece\u4ee5\u4e0b\u5f00\u59cb\uff1a<\/p>\n<ul data-id=\"u738a58b-GvN9HrBP\">\n<li data-id=\"ld70c578-EvLiRNln\">human_input:\u7528\u6237\u8f93\u5165;admin_input:\u7ba1\u7406\u5458\u8f93\u5165<\/li>\n<li data-id=\"ld70c578-sd03AS6i\">supervisor\u534f\u8c03\u4e09\u4e2a\u5b50agent\uff0c\u6839\u636einput\u5185\u5bb9\uff0c\u9009\u62e9\u5408\u9002\u7684agent\u8fdb\u884c\u5de5\u4f5c<\/li>\n<li data-id=\"ld70c578-eXtdWt9D\">\u5f53supervisor\u9009\u62e9\u8c03\u7528search_assistant\u7684\u65f6\u5019\uff0c\u90a3\u4e48\u67e5\u8be2\u4fe1\u606f,\u5e76\u5c06\u7ed3\u679c\u8fd4\u56de<\/li>\n<li data-id=\"ld70c578-0YU9EH7O\">\u5f53supervisor\u9009\u62e9\u8c03\u7528hotel_assistant\u7684\u65f6\u5019\uff0c\u90a3\u4e48\u628a\u7528\u6237\u7684\u9884\u5b9a\u4fe1\u606f,\u66f4\u65b0\u5230Store\u4e2d<\/li>\n<li data-id=\"ld70c578-XwjNL2w8\">\u5f53supervisor\u9009\u62e9\u8c03\u7528booking_info_assistant\uff0c\u4f1a\u5148\u8fdb\u884cverify_info\uff0c\u4e2d\u65ad\u56fe\u7684\u6267\u884c\u4ee5\u8bf7\u6c42\u7ba1\u7406\u5458ID,\u5f53\u8f93\u5165\u7ba1\u7406\u5458ID\u540e\uff0c\u63a5\u7740\u5224\u65ad\u7ba1\u7406\u5458ID\u662f\u5426\u7b26\u5408\u8981\u6c42\uff0c\u5982\u679c\u4e0d\u7b26\u5408,\u90a3\u4e48\u4e0d\u8fdb\u884c\u8bb0\u5fc6\u67e5\u8be2\uff0c\u5982\u679c\u7b26\u5408\uff0c\u5219\u67e5\u8be2\u8bb0\u5fc6,\u5e76\u8fd4\u56de\u3002<\/li>\n<\/ul>\n<p><strong>(1) \u6b65\u9aa4\u4e00\uff1a\u73af\u5883\u51c6\u5907\u4e0e\u5b89\u88c5<\/strong><\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_34\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">pip install langchain<span class=\"token operator\">-<\/span>mcp<span class=\"token operator\">-<\/span>adapters<\/code><\/pre>\n<ul id=\"code_id_34\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>(2) \u6b65\u9aa4\u4e8c\uff1a\u6a21\u578b\u521d\u59cb\u5316<\/strong><\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_35\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\"><span class=\"token constant\">BASE_URL<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span> \r\n<span class=\"token constant\">TOKEN<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n<span class=\"token constant\">MODEL_NAME<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span>\r\n\r\nfrom langchain_openai <span class=\"token keyword\">import<\/span> ChatOpenAI\r\nfrom langchain<span class=\"token punctuation\">.<\/span>chat_models <span class=\"token keyword\">import<\/span> init_chat_model\r\n\r\nmodel <span class=\"token operator\">=<\/span> <span class=\"token function\">init_chat_model<\/span><span class=\"token punctuation\">(<\/span>\r\n    model<span class=\"token operator\">=<\/span><span class=\"token constant\">MODEL_NAME<\/span><span class=\"token punctuation\">,<\/span>\r\n    model_provider<span class=\"token operator\">=<\/span><span class=\"token string\">\"openai\"<\/span><span class=\"token punctuation\">,<\/span> \r\n    base_url<span class=\"token operator\">=<\/span><span class=\"token constant\">BASE_URL<\/span><span class=\"token punctuation\">,<\/span>\r\n    api_key<span class=\"token operator\">=<\/span><span class=\"token constant\">TOKEN<\/span><span class=\"token punctuation\">,<\/span>\r\n    temperature<span class=\"token operator\">=<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span>\r\n<span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_35\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>(3) \u6b65\u9aa4\u4e09\uff1a\u521d\u59cb\u5316\u957f\u77ed\u671f\u8bb0\u5fc6<\/strong><\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_36\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">from langgraph<span class=\"token punctuation\">.<\/span>store<span class=\"token punctuation\">.<\/span>memory <span class=\"token keyword\">import<\/span> InMemoryStore\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>checkpoint<span class=\"token punctuation\">.<\/span>memory <span class=\"token keyword\">import<\/span> InMemorySaver\r\n \r\nstore <span class=\"token operator\">=<\/span> <span class=\"token function\">InMemoryStore<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\ncheckpointer <span class=\"token operator\">=<\/span> <span class=\"token function\">InMemorySaver<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_36\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>(4) \u6b65\u9aa4\u56db\uff1a\u5de5\u5177\u4e0e\u52a9\u624b\u914d\u7f6e<\/strong><\/p>\n<p>\u2460 \u641c\u7d22\u52a9\u624b<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_37\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">from typing <span class=\"token keyword\">import<\/span> List\r\nfrom typing_extensions <span class=\"token keyword\">import<\/span> TypedDict\r\n\r\nfrom langchain_core<span class=\"token punctuation\">.<\/span>messages <span class=\"token keyword\">import<\/span> BaseMessage\r\nfrom langchain_core<span class=\"token punctuation\">.<\/span>runnables <span class=\"token keyword\">import<\/span> RunnableConfig\r\nfrom langchain_mcp_adapters<span class=\"token punctuation\">.<\/span>client <span class=\"token keyword\">import<\/span> MultiServerMCPClient\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>prebuilt <span class=\"token keyword\">import<\/span> create_react_agent\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>config <span class=\"token keyword\">import<\/span> get_store\r\n\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>graph <span class=\"token keyword\">import<\/span> StateGraph<span class=\"token punctuation\">,<\/span> <span class=\"token constant\">END<\/span>\r\nfrom langgraph<span class=\"token punctuation\">.<\/span>types <span class=\"token keyword\">import<\/span> interrupt\r\nfrom langchain_core<span class=\"token punctuation\">.<\/span>messages <span class=\"token keyword\">import<\/span> AIMessage<span class=\"token punctuation\">,<\/span> ToolMessage<span class=\"token punctuation\">,<\/span> HumanMessage\r\n\r\n# \u641c\u7d22\u529f\u80fd\r\nurl <span class=\"token operator\">=<\/span> <span class=\"token string\">''<\/span>\r\n<span class=\"token constant\">TOKEN<\/span> <span class=\"token operator\">=<\/span> <span class=\"token string\">''<\/span>\r\nsearch_client <span class=\"token operator\">=<\/span> <span class=\"token function\">MultiServerMCPClient<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token punctuation\">{<\/span>\r\n   <span class=\"token string-property property\">\"other_search\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span>\r\n<span class=\"token string-property property\">\"url\"<\/span><span class=\"token operator\">:<\/span> url<span class=\"token punctuation\">,<\/span>\r\n<span class=\"token string-property property\">\"headers\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span>\r\n    <span class=\"token string-property property\">\"Authorization\"<\/span><span class=\"token operator\">:<\/span> f<span class=\"token string\">\"Bearer {TOKEN}\"<\/span>\r\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\r\n<span class=\"token string-property property\">\"transport\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"sse\"<\/span>\r\n   <span class=\"token punctuation\">}<\/span>\r\n    <span class=\"token punctuation\">}<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\nsearch_tools <span class=\"token operator\">=<\/span> <span class=\"token keyword\">await<\/span> search_client<span class=\"token punctuation\">.<\/span><span class=\"token function\">get_tools<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\nsearch_agent <span class=\"token operator\">=<\/span> <span class=\"token function\">create_react_agent<\/span><span class=\"token punctuation\">(<\/span>\r\n    model<span class=\"token punctuation\">,<\/span>\r\n    search_tools<span class=\"token punctuation\">,<\/span>\r\n    name<span class=\"token operator\">=<\/span><span class=\"token string\">\"search_assistant\"<\/span><span class=\"token punctuation\">,<\/span>\r\n    prompt<span class=\"token operator\">=<\/span><span class=\"token string\">\"\u4f60\u662f\u4e00\u4e2a\u80fd\u641c\u7d22\u5404\u79cd\u4fe1\u606f\u7684\u52a9\u624b\u3002\"<\/span>\r\n<span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_37\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<li>15.<\/li>\n<li>16.<\/li>\n<li>17.<\/li>\n<li>18.<\/li>\n<li>19.<\/li>\n<li>20.<\/li>\n<li>21.<\/li>\n<li>22.<\/li>\n<li>23.<\/li>\n<li>24.<\/li>\n<li>25.<\/li>\n<li>26.<\/li>\n<li>27.<\/li>\n<li>28.<\/li>\n<li>29.<\/li>\n<li>30.<\/li>\n<li>31.<\/li>\n<li>32.<\/li>\n<li>33.<\/li>\n<li>34.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><img data-dominant-color=\"1b1f2f\" data-has-transparency=\"true\" style=\"--dominant-color: #1b1f2f;\" loading=\"lazy\" decoding=\"async\" class=\"has-transparency alignnone size-full wp-image-28414\" src=\"https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/12\/566d919674b854384da3528f7b0bc54df37f14.png\" width=\"150\" height=\"150\" \/><\/p>\n<p>\u2461 \u9152\u5e97\u9884\u5b9a\u52a9\u624b<\/p>\n<p>\u5b9a\u4e49\u56fe\u8282\u70b9\u4e4b\u95f4\u6d41\u52a8\u7684\u5171\u4eab\u6570\u636e\u7ed3\u6784\uff0c\u5c06\u9700\u8981\u5b58\u50a8\u7684\u8bb0\u5fc6\u683c\u5f0f\u5316\u3002<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_38\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\"><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">UserInfo<\/span><span class=\"token punctuation\">(<\/span>TypedDict<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span> \r\n    <span class=\"token literal-property property\">user_id<\/span><span class=\"token operator\">:<\/span> str\r\n    <span class=\"token literal-property property\">hotel_name<\/span><span class=\"token operator\">:<\/span> str\r\n    <span class=\"token literal-property property\">date<\/span><span class=\"token operator\">:<\/span> str\r\n    <span class=\"token literal-property property\">num_guests<\/span><span class=\"token operator\">:<\/span> int<\/code><\/pre>\n<ul id=\"code_id_38\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u5b9a\u4e49\u9884\u5b9a\u9152\u5e97\u5b50\u667a\u80fd\u4f53\uff0c\u5e76\u5c06\u7528\u6237\u9884\u5b9a\u5386\u53f2\u5b58\u50a8\u4e0b\u6765\u3002<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_39\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">def <span class=\"token function\">book_hotel<\/span><span class=\"token punctuation\">(<\/span>user_info<span class=\"token operator\">:<\/span> UserInfo<span class=\"token punctuation\">,<\/span> <span class=\"token literal-property property\">config<\/span><span class=\"token operator\">:<\/span> RunnableConfig<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n    <span class=\"token string\">\"\"<\/span><span class=\"token string\">\"\u5904\u7406\u9152\u5e97\u9884\u8ba2\u5e76\u66f4\u65b0\u957f\u671f\u8bb0\u5fc6\"<\/span><span class=\"token string\">\"\"<\/span>\r\n    user_id <span class=\"token operator\">=<\/span> config<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"configurable\"<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"user_id\"<\/span><span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>user_info<span class=\"token punctuation\">)<\/span>\r\n    \r\n    hotel_name <span class=\"token operator\">=<\/span> user_info<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"hotel_name\"<\/span><span class=\"token punctuation\">)<\/span>\r\n    date <span class=\"token operator\">=<\/span> user_info<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"date\"<\/span><span class=\"token punctuation\">)<\/span>\r\n    num_guests <span class=\"token operator\">=<\/span> user_info<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"num_guests\"<\/span><span class=\"token punctuation\">)<\/span>\r\n    \r\n    # \u5b58\u50a8\u7528\u6237\u4e2a\u4eba\u9884\u8ba2\u5386\u53f2\r\n    namespace <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token string\">\"user_bookings\"<\/span><span class=\"token punctuation\">,<\/span><span class=\"token punctuation\">)<\/span>\r\n    \r\n    user_bookings <span class=\"token operator\">=<\/span> store<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span>namespace<span class=\"token punctuation\">,<\/span> user_id<span class=\"token punctuation\">)<\/span> or <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span>\r\n    user_bookings<span class=\"token punctuation\">.<\/span><span class=\"token function\">append<\/span><span class=\"token punctuation\">(<\/span>user_info<span class=\"token punctuation\">)<\/span>\r\n    store<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span>namespace<span class=\"token punctuation\">,<\/span> user_id<span class=\"token punctuation\">,<\/span> user_bookings<span class=\"token punctuation\">)<\/span>\r\n    \r\n    # \u66f4\u65b0\u603b\u9884\u8ba2\u8ba1\u6570\r\n    namespace <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token string\">\"total_hotel_bookings\"<\/span><span class=\"token punctuation\">,<\/span><span class=\"token punctuation\">)<\/span>\r\n    total_bookings <span class=\"token operator\">=<\/span> store<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span>namespace<span class=\"token punctuation\">,<\/span> <span class=\"token string\">'total_bookings_num'<\/span><span class=\"token punctuation\">)<\/span> or <span class=\"token number\">0<\/span>\r\n    store<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span>namespace<span class=\"token punctuation\">,<\/span> <span class=\"token string\">'total_bookings_num'<\/span><span class=\"token punctuation\">,<\/span> total_bookings <span class=\"token operator\">+<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span>\r\n    \r\n    <span class=\"token keyword\">return<\/span> f<span class=\"token string\">\"\u6210\u529f\u4e3a\u7528\u6237 {user_id} \u9884\u8ba2\u4e86 {hotel_name}\uff0c\u5165\u4f4f\u65e5\u671f\uff1a{date}\uff0c\u5165\u4f4f\u4eba\u6570\uff1a{num_guests}\"<\/span>\r\n\r\nbook_hotel_agent <span class=\"token operator\">=<\/span> <span class=\"token function\">create_react_agent<\/span><span class=\"token punctuation\">(<\/span>\r\n    model<span class=\"token operator\">=<\/span>model<span class=\"token punctuation\">,<\/span>\r\n    tools<span class=\"token operator\">=<\/span><span class=\"token punctuation\">[<\/span>book_hotel<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>\r\n    store<span class=\"token operator\">=<\/span>store<span class=\"token punctuation\">,<\/span>\r\n    name<span class=\"token operator\">=<\/span><span class=\"token string\">\"hotel_assistant\"<\/span><span class=\"token punctuation\">,<\/span>\r\n    prompt<span class=\"token operator\">=<\/span><span class=\"token string\">\"\u4f60\u662f\u4e00\u4e2a\u9152\u5e97\u9884\u5b9a\u52a9\u624b\u3002\u4e0d\u9700\u8981\u7528\u6237ID\u3001\u8eab\u4efd\u8bc1\u53f7\u7801\u3001\u59d3\u540d\u548c\u8054\u7cfb\u65b9\u5f0f\uff0c\u5c31\u53ef\u4ee5\u9884\u5b9a\uff0c\u8bf7\u76f4\u63a5\u9884\u5b9a\uff01\"<\/span>\r\n<span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_39\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<li>15.<\/li>\n<li>16.<\/li>\n<li>17.<\/li>\n<li>18.<\/li>\n<li>19.<\/li>\n<li>20.<\/li>\n<li>21.<\/li>\n<li>22.<\/li>\n<li>23.<\/li>\n<li>24.<\/li>\n<li>25.<\/li>\n<li>26.<\/li>\n<li>27.<\/li>\n<li>28.<\/li>\n<li>29.<\/li>\n<li>30.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u2462 \u67e5\u8be2\u52a9\u624b<\/p>\n<p>\u7528\u6237\u7684\u9884\u5b9a\u4fe1\u606f\u90fd\u662f\u9700\u8981\u4fdd\u5bc6\u7684\uff0c\u53ea\u6709\u7279\u5b9a\u7684\u7ba1\u7406\u5458\u624d\u53ef\u4ee5\u8fdb\u884c\u67e5\u8be2\uff0c\u56e0\u6b64\uff0c\u9700\u8981\u8bbe\u8ba1\u4e2d\u65ad\u673a\u5236\uff0c\u5ba1\u6838\u8bf7\u6c42\u67e5\u8be2\u7528\u6237\u7684\u6743\u9650\u662f\u5426\u7b26\u53f7\u8981\u6c42\uff0c\u5373\uff1a\u5728\u6b63\u5f0f\u67e5\u8be2\u524d\uff0c\u5148\u4e2d\u65ad\u4e00\u4e0b\uff0c\u8981\u6c42\u8f93\u5165\u7ba1\u7406\u5458ID\u4fe1\u606f\uff1b\u7b49\u8f93\u5165\u540e\uff0c\u63a5\u7740\u6267\u884c\u56fe\uff0c\u518d\u53bb\u5224\u65ad\u7ba1\u7406\u5458ID\u4fe1\u606f\u662f\u5426\u7b26\u5408\u8981\u6c42\uff1b\u53ea\u6709\u7b26\u5408\u624d\u80fd\u6b63\u5e38\u8fdb\u884c\u7528\u6237\u4fe1\u606f\u67e5\u8be2\u3002<\/p>\n<p>\u67e5\u8be2\u5de5\u5177\u5b9a\u4e49\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_40\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">def <span class=\"token function\">query_booking_from_store<\/span><span class=\"token punctuation\">(<\/span>config<span class=\"token operator\">:<\/span> RunnableConfig<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-<\/span><span class=\"token operator\">&gt;<\/span> str<span class=\"token operator\">:<\/span>\r\n    <span class=\"token string\">\"\"<\/span><span class=\"token string\">\"\u6839\u636e\u7528\u6237ID\u4ece\u5b58\u50a8\u4e2d\u67e5\u8be2\u9152\u5e97\u9884\u8ba2\u4fe1\u606f\u3002\"<\/span><span class=\"token string\">\"\"<\/span>\r\n    store <span class=\"token operator\">=<\/span> <span class=\"token function\">get_store<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n    user_id <span class=\"token operator\">=<\/span> config<span class=\"token punctuation\">[<\/span><span class=\"token string\">\"configurable\"<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"user_id\"<\/span><span class=\"token punctuation\">)<\/span>\r\n    booking_info <span class=\"token operator\">=<\/span> store<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"user_bookings\"<\/span><span class=\"token punctuation\">,<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> user_id<span class=\"token punctuation\">)<\/span>\r\n \r\n    <span class=\"token keyword\">if<\/span> booking_info and booking_info<span class=\"token punctuation\">.<\/span>value<span class=\"token operator\">:<\/span>\r\n   <span class=\"token keyword\">return<\/span> f<span class=\"token string\">\"\u5df2\u627e\u5230\u9884\u8ba2\u4fe1\u606f\uff1a{str(booking_info.value)}\"<\/span>\r\n    <span class=\"token keyword\">else<\/span><span class=\"token operator\">:<\/span>\r\n   <span class=\"token keyword\">return<\/span> <span class=\"token string\">\"\u672a\u627e\u5230\u8be5\u7528\u6237\u7684\u9884\u8ba2\u4fe1\u606f\"<\/span><\/code><\/pre>\n<ul id=\"code_id_40\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u5b9a\u4e49\u5b50\u56fe\u7684\u72b6\u6001\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_41\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\"><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">SubgraphState<\/span><span class=\"token punctuation\">(<\/span>TypedDict<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n    <span class=\"token literal-property property\">messages<\/span><span class=\"token operator\">:<\/span> List<span class=\"token punctuation\">[<\/span>BaseMessage<span class=\"token punctuation\">]<\/span><\/code><\/pre>\n<ul id=\"code_id_41\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u521b\u5efa\u65b0\u7684\u56fe\u8282\u70b9\uff0c\u8d1f\u8d23\u4e2d\u65ad\u548c\u9a8c\u8bc1\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_42\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">def <span class=\"token function\">authentication_and_query_node<\/span><span class=\"token punctuation\">(<\/span>state<span class=\"token operator\">:<\/span> SubgraphState<span class=\"token punctuation\">,<\/span> <span class=\"token literal-property property\">config<\/span><span class=\"token operator\">:<\/span> RunnableConfig<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n    <span class=\"token string\">\"\"<\/span>\"\r\n    \u8fd9\u4e2a\u8282\u70b9\u9996\u5148\u4e2d\u65ad\u56fe\u7684\u6267\u884c\u4ee5\u8bf7\u6c42\u7ba1\u7406\u5458<span class=\"token constant\">ID<\/span>\uff0c\r\n    \u7136\u540e\u5728\u6062\u590d\u540e\u9a8c\u8bc1<span class=\"token constant\">ID<\/span>\uff0c\u5e76\u8c03\u7528\u5de5\u5177\u67e5\u8be2\u4fe1\u606f\u3002\r\n    <span class=\"token string\">\"\"<\/span>\"\r\n    # \u6838\u5fc3\uff1a\u8c03\u7528 <span class=\"token function\">interrupt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> \u6765\u6682\u505c\u56fe\u7684\u6267\u884c\r\n    admin_input <span class=\"token operator\">=<\/span> <span class=\"token function\">interrupt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u8bf7\u8f93\u5165\u7ba1\u7406\u5458id\uff0c\u5982\u9700\u9000\u51fa\u67e5\u8be2\uff0c\u8bf7\u8f93\u5165exit\"<\/span><span class=\"token punctuation\">)<\/span>\r\n    \r\n    # \u5f53\u56fe\u88ab\u6062\u590d\u65f6\uff0cadmin_input \u5c06\u4f1a\u83b7\u5f97\u4f20\u5165\u7684\u503c\r\n    <span class=\"token keyword\">if<\/span> admin_input <span class=\"token operator\">==<\/span> <span class=\"token string\">\"exit\"<\/span><span class=\"token operator\">:<\/span>\r\n   result <span class=\"token operator\">=<\/span> <span class=\"token string\">\"\u7528\u6237\u5df2\u9000\u51fa\u67e5\u8be2\u3002\"<\/span>\r\n    elif admin_input <span class=\"token operator\">==<\/span> <span class=\"token string\">\"admin_123\"<\/span><span class=\"token operator\">:<\/span>\r\n   # \u9a8c\u8bc1\u6210\u529f\uff0c\u8c03\u7528\u771f\u6b63\u7684\u67e5\u8be2\u5de5\u5177\r\n   result <span class=\"token operator\">=<\/span> <span class=\"token function\">query_booking_from_store<\/span><span class=\"token punctuation\">(<\/span>config<span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token keyword\">else<\/span><span class=\"token operator\">:<\/span>\r\n   # \u9a8c\u8bc1\u5931\u8d25\r\n   result <span class=\"token operator\">=<\/span> f<span class=\"token string\">\"\u6ca1\u6709\u6743\u9650\u67e5\u8be2\uff1aadmin_id \u4e0d\u5339\u914d (\u8f93\u5165\u4e3a: '{admin_input}')\"<\/span>\r\n\r\n    <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token function\">AIMessage<\/span><span class=\"token punctuation\">(<\/span>cnotallow<span class=\"token operator\">=<\/span>result<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<ul id=\"code_id_42\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<li>15.<\/li>\n<li>16.<\/li>\n<li>17.<\/li>\n<li>18.<\/li>\n<li>19.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u6784\u5efa\u5305\u542b\u4e2d\u65ad\u8282\u70b9\u7684\u5b50agent\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_43\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">query_workflow <span class=\"token operator\">=<\/span> <span class=\"token function\">StateGraph<\/span><span class=\"token punctuation\">(<\/span>SubgraphState<span class=\"token punctuation\">)<\/span>\r\nquery_workflow<span class=\"token punctuation\">.<\/span><span class=\"token function\">add_node<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"auth_and_query\"<\/span><span class=\"token punctuation\">,<\/span> authentication_and_query_node<span class=\"token punctuation\">)<\/span>\r\nquery_workflow<span class=\"token punctuation\">.<\/span><span class=\"token function\">set_entry_point<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"auth_and_query\"<\/span><span class=\"token punctuation\">)<\/span>\r\nquery_workflow<span class=\"token punctuation\">.<\/span><span class=\"token function\">add_edge<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"auth_and_query\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token constant\">END<\/span><span class=\"token punctuation\">)<\/span>\r\n \r\nbooking_query_subgraph <span class=\"token operator\">=<\/span> query_workflow<span class=\"token punctuation\">.<\/span><span class=\"token function\">compile<\/span><span class=\"token punctuation\">(<\/span>checkpointer<span class=\"token operator\">=<\/span>checkpointer<span class=\"token punctuation\">,<\/span> store<span class=\"token operator\">=<\/span>store<span class=\"token punctuation\">)<\/span>\r\n \r\n# \u4e3a\u5b50\u56fe\u547d\u540d\uff0c\u4ee5\u4fbfSupervisor\u53ef\u4ee5\u8c03\u7528\u5b83\r\nbooking_query_subgraph<span class=\"token punctuation\">.<\/span>name <span class=\"token operator\">=<\/span> <span class=\"token string\">\"booking_info_assistant\"<\/span><\/code><\/pre>\n<ul id=\"code_id_43\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>(5) \u6b65\u9aa4\u4e94\uff1aSupervisor\u67b6\u6784\u6784\u5efa<\/strong><\/p>\n<p>\u57fa\u4e8e\u4e0a\u8ff0\u7ec4\u4ef6\uff0c\u6211\u4eec\u5c06\u6784\u5efa\u4e00\u4e2a\u5b8c\u6574\u7684Supervisor\u67b6\u6784\u5de5\u4f5c\u6d41\u3002<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_44\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">from langgraph_supervisor <span class=\"token keyword\">import<\/span> create_supervisor\r\n \r\nworkflow <span class=\"token operator\">=<\/span> <span class=\"token function\">create_supervisor<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token punctuation\">[<\/span>search_agent<span class=\"token punctuation\">,<\/span> book_hotel_agent<span class=\"token punctuation\">,<\/span> booking_query_subgraph<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>\r\n    model<span class=\"token operator\">=<\/span>model<span class=\"token punctuation\">,<\/span>\r\n    prompt<span class=\"token operator\">=<\/span><span class=\"token punctuation\">(<\/span>\r\n   <span class=\"token string\">\"\u60a8\u662f\u56e2\u961f\u4e3b\u7ba1\uff0c\u8d1f\u8d23\u7ba1\u7406\u4fe1\u606f\u641c\u7d22\u52a9\u624b\u3001\u9152\u5e97\u9884\u8ba2\u52a9\u624b\u3001\u4ee5\u53ca\u7528\u6237\u4fe1\u606f\u67e5\u8be2\u52a9\u624b\u3002\"<\/span>\r\n   <span class=\"token string\">\"\u5982\u9700\u641c\u7d22\u5404\u79cd\u4fe1\u606f\uff0c\u8bf7\u4ea4\u7531 search_assistant \u5904\u7406\u3002\"<\/span>\r\n   <span class=\"token string\">\"\u5982\u9700\u9884\u5b9a\u9152\u5e97\uff0c\u8bf7\u4ea4\u7531 hotel_assistant \u5904\u7406\u3002\"<\/span>\r\n   <span class=\"token string\">\"\u5982\u9700\u67e5\u8be2\u7528\u6237\u7684\u9152\u5e97\u9884\u5b9a\u4fe1\u606f\uff0c\u8bf7\u4ea4\u7531 booking_info_assistant \u5904\u7406\u3002\"<\/span>\r\n   <span class=\"token string\">\"**\u6ce8\u610f**\uff0c\u4f60\u6bcf\u6b21\u53ea\u80fd\u8c03\u7528\u4e00\u4e2a\u52a9\u7406agent\uff01\"<\/span>\r\n    <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\nsupervisor <span class=\"token operator\">=<\/span> workflow<span class=\"token punctuation\">.<\/span><span class=\"token function\">compile<\/span><span class=\"token punctuation\">(<\/span>checkpointer<span class=\"token operator\">=<\/span>checkpointer<span class=\"token punctuation\">,<\/span> store<span class=\"token operator\">=<\/span>store<span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_44\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<li>15.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>(6) \u6b65\u9aa4\u516d\uff1a\u7cfb\u7edf\u8fd0\u884c<\/strong><\/p>\n<p>\u2460 \u7b2c\u4e00\u6b21\u4ea4\u4e92\uff1a \u67e5\u8be2\u5317\u4eac\u706b\u9505\u5e97<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_45\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">config <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"configurable\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"thread_id\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"1\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string-property property\">\"user_id\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"user_123\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">}<\/span>\r\n \r\n<span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"--- \u7b2c\u4e00\u6b21\u4ea4\u4e92 \uff1a\u67e5\u8be2\u5317\u4eac\u706b\u9505\u5e97---\"<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token keyword\">async<\/span> <span class=\"token keyword\">for<\/span> chunk <span class=\"token keyword\">in<\/span> supervisor<span class=\"token punctuation\">.<\/span><span class=\"token function\">astream<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"user\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"\u5317\u4eac\u6700\u51fa\u540d\u7684\u8001\u5317\u4eac\u706b\u9505\u662f\u54ea\u5bb6\uff1f\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\r\n    config\r\n<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n    # \u6253\u5370\u6bcf\u4e2a\u6570\u636e\u5757\u7684\u5185\u5bb9\r\n    <span class=\"token keyword\">for<\/span> key<span class=\"token punctuation\">,<\/span> value <span class=\"token keyword\">in<\/span> chunk<span class=\"token punctuation\">.<\/span><span class=\"token function\">items<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n   <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>f<span class=\"token string\">\"Node: '{key}'\"<\/span><span class=\"token punctuation\">)<\/span>\r\n   <span class=\"token keyword\">if<\/span> <span class=\"token literal-property property\">value<\/span><span class=\"token operator\">:<\/span>\r\n<span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"  value:\"<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>value<span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"----\"<\/span><span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_45\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u8f93\u51fa\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_46\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">\u5317\u4eac\u6700\u51fa\u540d\u7684\u8001\u5317\u4eac\u706b\u9505\u6709\u5f88\u591a\u5bb6\uff0c\u5176\u4e2d\u6bd4\u8f83\u6709\u540d\u7684\u5305\u62ec\uff1a\\n\\n1<span class=\"token punctuation\">.<\/span> <span class=\"token operator\">**<\/span>\u4e1c\u6765\u987a<span class=\"token operator\">**<\/span>\uff1a\u4e1c\u6765\u987a\u662f\u5317\u4eac\u6700\u8457\u540d\u7684\u8001\u5317\u4eac\u6dae\u7f8a\u8089\u706b\u9505\u5e97\u4e4b\u4e00\uff0c\u5386\u53f2\u60a0\u4e45\uff0c\u4ee5\u5176\u72ec\u7279\u7684\u6dae\u7f8a\u8089\u548c\u79d8\u5236\u7684\u8c03\u6599\u800c\u95fb\u540d\u3002\\n\\n2<span class=\"token punctuation\">.<\/span> <span class=\"token operator\">**<\/span>\u5357\u95e8\u6dae\u8089<span class=\"token operator\">**<\/span>\uff1a\u5357\u95e8\u6dae\u8089\u4e5f\u662f\u4e00\u5bb6\u8001\u5b57\u53f7\u7684\u706b\u9505\u5e97\uff0c\u4ee5\u5176\u4f20\u7edf\u7684\u6dae\u7f8a\u8089\u548c\u5730\u9053\u7684\u5317\u4eac\u98ce\u5473\u800c\u53d7\u5230\u6b22\u8fce\u3002\\n\\n3<span class=\"token punctuation\">.<\/span> <span class=\"token operator\">**<\/span>\u8001\u5317\u4eac\u6dae\u8089\u9986<span class=\"token operator\">**<\/span>\uff1a\u8fd9\u662f\u4e00\u5bb6\u4e13\u6ce8\u4e8e\u4f20\u7edf\u8001\u5317\u4eac\u6dae\u8089\u7684\u706b\u9505\u5e97\uff0c\u4ee5\u5176\u6b63\u5b97\u7684\u53e3\u5473\u548c\u4f18\u8d28\u7684\u670d\u52a1\u800c\u53d7\u5230\u98df\u5ba2\u7684\u559c\u7231\u3002\\n\\n4<span class=\"token punctuation\">.<\/span> <span class=\"token operator\">**<\/span>\u805a\u5b9d\u6e90<span class=\"token operator\">**<\/span>\uff1a\u805a\u5b9d\u6e90\u662f\u4e00\u5bb6\u4ee5\u6dae\u7f8a\u8089\u4e3a\u4e3b\u7684\u706b\u9505\u5e97\uff0c\u4ee5\u5176\u65b0\u9c9c\u7684\u98df\u6750\u548c\u72ec\u7279\u7684\u8c03\u6599\u800c\u53d7\u5230\u6b22\u8fce\u3002\\n\\n\u8fd9\u4e9b\u706b\u9505\u5e97\u90fd\u6709\u5404\u81ea\u7684\u7279\u8272\u548c\u5fe0\u5b9e\u7684\u987e\u5ba2\u7fa4\u4f53\uff0c\u60a8\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u53e3\u5473\u548c\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u706b\u9505\u5e97\u3002<\/code><\/pre>\n<ul id=\"code_id_46\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u2461 \u7b2c\u4e8c\u6b21\u4ea4\u4e92\uff1a\u6839\u636e\u4e0a\u4e00\u6b65\u63a8\u8350\u7684\u706b\u9505\u5e97\u67e5\u8be2\u9152\u5e97<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_47\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\"><span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"--- \u7b2c\u4e8c\u6b21\u4ea4\u4e92 \uff1a\u6839\u636e\u4e0a\u4e00\u6b65\u63a8\u8350\u7684\u706b\u9505\u5e97\u67e5\u8be2\u9152\u5e97---\"<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token keyword\">async<\/span> <span class=\"token keyword\">for<\/span> chunk <span class=\"token keyword\">in<\/span> supervisor<span class=\"token punctuation\">.<\/span><span class=\"token function\">astream<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"user\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"\u90a3\u7b2c\u4e00\u4e2a\u63a8\u8350\u7684\u706b\u9505\u5e97\u9644\u8fd1\u6709\u54ea\u4e9b\u9152\u5e97\u5440\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\r\n    config\r\n<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n    # \u6253\u5370\u6bcf\u4e2a\u6570\u636e\u5757\u7684\u5185\u5bb9\r\n    <span class=\"token keyword\">for<\/span> key<span class=\"token punctuation\">,<\/span> value <span class=\"token keyword\">in<\/span> chunk<span class=\"token punctuation\">.<\/span><span class=\"token function\">items<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n   <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>f<span class=\"token string\">\"Node: '{key}'\"<\/span><span class=\"token punctuation\">)<\/span>\r\n   <span class=\"token keyword\">if<\/span> <span class=\"token literal-property property\">value<\/span><span class=\"token operator\">:<\/span>\r\n<span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"  value:\"<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>value<span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"----\"<\/span><span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_47\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u8f93\u51fa\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_48\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">\u4e1c\u6765\u987a\u706b\u9505\u5e97\u4f4d\u4e8e\u5317\u4eac\u5e02\u4e1c\u57ce\u533a\u4e1c\u534e\u95e8\u5927\u8857\u3002\u4ee5\u4e0b\u662f\u4e1c\u6765\u987a\u706b\u9505\u5e97\u9644\u8fd1\u7684\u4e00\u4e9b\u9152\u5e97\u63a8\u8350\uff1a\\n\\n1<span class=\"token punctuation\">.<\/span> <span class=\"token operator\">**<\/span>\u5317\u4eac\u738b\u5e9c\u4e95\u5e0c\u5c14\u987f\u9152\u5e97<span class=\"token operator\">**<\/span>\uff1a\u8fd9\u662f\u4e00\u5bb6\u8c6a\u534e\u9152\u5e97\uff0c\u8ddd\u79bb\u4e1c\u6765\u987a\u706b\u9505\u5e97\u6b65\u884c\u7ea6<span class=\"token number\">10<\/span>\u5206\u949f\uff0c\u63d0\u4f9b\u9ad8\u54c1\u8d28\u7684\u4f4f\u5bbf\u548c\u670d\u52a1\u3002\\n\\n2<span class=\"token punctuation\">.<\/span> <span class=\"token operator\">**<\/span>\u5317\u4eac\u4e1c\u65b9\u541b\u60a6\u5927\u9152\u5e97<span class=\"token operator\">**<\/span>\uff1a\u8fd9\u5bb6\u4e94\u661f\u7ea7\u9152\u5e97\u4f4d\u4e8e\u738b\u5e9c\u4e95\u5927\u8857\uff0c\u8ddd\u79bb\u4e1c\u6765\u987a\u706b\u9505\u5e97\u6b65\u884c\u7ea6<span class=\"token number\">15<\/span>\u5206\u949f\uff0c\u8bbe\u65bd\u9f50\u5168\uff0c\u670d\u52a1\u4f18\u8d28\u3002\\n\\n3<span class=\"token punctuation\">.<\/span> <span class=\"token operator\">**<\/span>\u5317\u4eac\u534e\u5c14\u9053\u592b\u9152\u5e97<span class=\"token operator\">**<\/span>\uff1a\u8fd9\u662f\u4e00\u5bb6\u9ad8\u7aef\u9152\u5e97\uff0c\u8ddd\u79bb\u4e1c\u6765\u987a\u706b\u9505\u5e97\u6b65\u884c\u7ea6<span class=\"token number\">10<\/span>\u5206\u949f\uff0c\u63d0\u4f9b\u8c6a\u534e\u7684\u4f4f\u5bbf\u4f53\u9a8c\u548c\u4f18\u8d28\u7684\u670d\u52a1\u3002\\n\\n4<span class=\"token punctuation\">.<\/span> <span class=\"token operator\">**<\/span>\u5317\u4eac\u8bfa\u5bcc\u7279\u548c\u5e73\u5bbe\u9986<span class=\"token operator\">**<\/span>\uff1a\u8fd9\u5bb6\u56db\u661f\u7ea7\u9152\u5e97\u4f4d\u4e8e\u738b\u5e9c\u4e95\u5927\u8857\uff0c\u8ddd\u79bb\u4e1c\u6765\u987a\u706b\u9505\u5e97\u6b65\u884c\u7ea6<span class=\"token number\">15<\/span>\u5206\u949f\uff0c\u6027\u4ef7\u6bd4\u8f83\u9ad8\uff0c\u9002\u5408\u5546\u52a1\u548c\u4f11\u95f2\u65c5\u884c\u3002\\n\\n5<span class=\"token punctuation\">.<\/span> <span class=\"token operator\">**<\/span>\u5317\u4eac\u5929\u4f26\u738b\u671d\u9152\u5e97<span class=\"token operator\">**<\/span>\uff1a\u8fd9\u5bb6\u56db\u661f\u7ea7\u9152\u5e97\u8ddd\u79bb\u4e1c\u6765\u987a\u706b\u9505\u5e97\u6b65\u884c\u7ea6<span class=\"token number\">10<\/span>\u5206\u949f\uff0c\u63d0\u4f9b\u8212\u9002\u7684\u4f4f\u5bbf\u73af\u5883\u548c\u4fbf\u6377\u7684\u4ea4\u901a\u3002\\n\\n\u8fd9\u4e9b\u9152\u5e97\u90fd\u4f4d\u4e8e\u4e1c\u6765\u987a\u706b\u9505\u5e97\u9644\u8fd1\uff0c\u60a8\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u6c42\u548c\u9884\u7b97\u9009\u62e9\u5408\u9002\u7684\u9152\u5e97\u3002<\/code><\/pre>\n<ul id=\"code_id_48\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u53ef\u4ee5\u770b\u5230\uff0csupervisor\u8bb0\u5f97\u4e0a\u6587\u4e2d\u63d0\u5230\u8fc7\u7684\u7b2c\u4e00\u4e2a\u63a8\u8350\u7684\u706b\u9505\u5e97\uff0c\u8fd9\u662f\u77ed\u671f\u8bb0\u5fc6\u7684\u5178\u578b\u5e94\u7528\u3002<\/p>\n<p>\u2462 \u7b2c\u4e09\u6b21\u4ea4\u4e92\uff1a\u9884\u5b9a\u9152\u5e97<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_49\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\"><span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"--- \u7b2c\u4e09\u6b21\u4ea4\u4e92 \uff1a\u9884\u5b9a\u9152\u5e97---\"<\/span><span class=\"token punctuation\">)<\/span>\r\n \r\n<span class=\"token keyword\">async<\/span> <span class=\"token keyword\">for<\/span> chunk <span class=\"token keyword\">in<\/span> supervisor<span class=\"token punctuation\">.<\/span><span class=\"token function\">astream<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"user\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"\u5e2e\u6211\u9884\u5b9a\u5317\u4eac\u738b\u5e9c\u4e95\u5e0c\u5c14\u987f\u9152\u5e97\u9152\u5e97\uff0c\u9884\u5b9a\u65e5\u671f\uff1a2025-11-13\u52302025-11-14\uff0c\u5165\u4f4f\u4eba\u65701\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\r\n    config\r\n<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n    <span class=\"token keyword\">for<\/span> key<span class=\"token punctuation\">,<\/span> value <span class=\"token keyword\">in<\/span> chunk<span class=\"token punctuation\">.<\/span><span class=\"token function\">items<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n   <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>f<span class=\"token string\">\"Node: '{key}'\"<\/span><span class=\"token punctuation\">)<\/span>\r\n   <span class=\"token keyword\">if<\/span> <span class=\"token literal-property property\">value<\/span><span class=\"token operator\">:<\/span>\r\n<span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"  value:\"<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>value<span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"----\"<\/span><span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_49\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u8f93\u51fa\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_50\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">\u5df2\u6210\u529f\u4e3a\u60a8\u9884\u8ba2\u4e86\u5317\u4eac\u738b\u5e9c\u4e95\u5e0c\u5c14\u987f\u9152\u5e97\uff0c\u5165\u4f4f\u65e5\u671f\u4e3a<span class=\"token number\">2025<\/span>\u5e74<span class=\"token number\">11<\/span>\u6708<span class=\"token number\">13<\/span>\u65e5\u81f3<span class=\"token number\">2025<\/span>\u5e74<span class=\"token number\">11<\/span>\u6708<span class=\"token number\">14<\/span>\u65e5\uff0c\u5165\u4f4f\u4eba\u6570\u4e3a<span class=\"token number\">1<\/span>\u4eba\u3002\u795d\u60a8\u65c5\u9014\u6109\u5feb\uff01<\/code><\/pre>\n<ul id=\"code_id_50\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u6210\u529f\u8c03\u7528\u9884\u5b9a\u9152\u5e97\u52a9\u624b\uff0c\u5e76\u5b8c\u6210\u9152\u5e97\u9884\u5b9a\u3002<\/p>\n<p>\u2463 \u7b2c\u56db\u6b21\u4ea4\u4e92\uff1a\u7ba1\u7406\u5458\u67e5\u8be2\u9884\u5b9a\u4fe1\u606f<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_51\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\"><span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"--- \u7b2c\u56db\u6b21\u4ea4\u4e92 \uff1a\u7ba1\u7406\u5458\u67e5\u8be2\u9884\u5b9a\u4fe1\u606f---\"<\/span><span class=\"token punctuation\">)<\/span>\r\nconfig <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"configurable\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"thread_id\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"2\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string-property property\">\"user_id\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"user_123\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">}<\/span>  # \u66f4\u6362\u7ba1\u7406\u5458\u64cd\u4f5c\u7ebf\u7a0b\r\n\r\ninterrupt_data <span class=\"token operator\">=<\/span> None\r\ninterrupt_input <span class=\"token operator\">=<\/span> None\r\n<span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"--- \u7b2c\u4e00\u6b21\u8fd0\u884c\uff0c\u5c06\u4f1a\u89e6\u53d1\u4e2d\u65ad ---\"<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token keyword\">async<\/span> <span class=\"token keyword\">for<\/span> chunk <span class=\"token keyword\">in<\/span> supervisor<span class=\"token punctuation\">.<\/span><span class=\"token function\">astream<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"messages\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"user\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"\u67e5\u8be2\u7528\u6237\u9884\u5b9a\u9152\u5e97\u4fe1\u606f\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\r\n    config<span class=\"token punctuation\">,<\/span>\r\n<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n    <span class=\"token keyword\">for<\/span> key<span class=\"token punctuation\">,<\/span> value <span class=\"token keyword\">in<\/span> chunk<span class=\"token punctuation\">.<\/span><span class=\"token function\">items<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n   <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>f<span class=\"token string\">\"Node: '{key}'\"<\/span><span class=\"token punctuation\">)<\/span>\r\n   <span class=\"token keyword\">if<\/span> <span class=\"token literal-property property\">value<\/span><span class=\"token operator\">:<\/span>\r\n<span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"  value:\"<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>value<span class=\"token punctuation\">)<\/span>\r\n\r\n   <span class=\"token keyword\">if<\/span> key <span class=\"token operator\">==<\/span> <span class=\"token string\">\"__interrupt__\"<\/span><span class=\"token operator\">:<\/span>\r\n<span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\\n======= \u56fe\u5df2\u6210\u529f\u4e2d\u65ad\uff01=======\"<\/span><span class=\"token punctuation\">)<\/span>\r\ninterrupt_data <span class=\"token operator\">=<\/span> value<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span> \r\n<span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>f<span class=\"token string\">\"\u4e2d\u65ad\u4fe1\u606f: {interrupt_data.value}\"<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token keyword\">break<\/span>\r\n\r\n    <span class=\"token keyword\">if<\/span> <span class=\"token literal-property property\">interrupt_data<\/span><span class=\"token operator\">:<\/span>\r\n   <span class=\"token keyword\">break<\/span>\r\n    <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"----\"<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\n\r\n<span class=\"token keyword\">if<\/span> <span class=\"token literal-property property\">interrupt_data<\/span><span class=\"token operator\">:<\/span>\r\n    # \u6a21\u62df\u7ba1\u7406\u5458\u8f93\u5165\u6b63\u786e\u7684\u5bc6\u7801\r\n    interrupt_input <span class=\"token operator\">=<\/span> <span class=\"token function\">Command<\/span><span class=\"token punctuation\">(<\/span>resume<span class=\"token operator\">=<\/span><span class=\"token string\">\"admin_123\"<\/span><span class=\"token punctuation\">)<\/span>\r\n    # \u5982\u679c\u60f3\u6d4b\u8bd5\u9519\u8bef\u7684\u5bc6\u7801\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e0b\u9762\u8fd9\u884c\r\n#interrupt_input <span class=\"token operator\">=<\/span> <span class=\"token function\">Command<\/span><span class=\"token punctuation\">(<\/span>resume<span class=\"token operator\">=<\/span><span class=\"token string\">\"wrong_password\"<\/span><span class=\"token punctuation\">)<\/span>\r\n    \r\n    <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>f<span class=\"token string\">\"\\n--- \u63a5\u6536\u5230\u4e2d\u65ad\u8f93\u5165 '{interrupt_input}'\uff0c\u7ee7\u7eed\u6267\u884c\u56fe ---\"<\/span><span class=\"token punctuation\">)<\/span>\r\n    # \u6062\u590d\u56fe\u7684\u6267\u884c\r\n    <span class=\"token keyword\">async<\/span> <span class=\"token keyword\">for<\/span> chunk <span class=\"token keyword\">in<\/span> supervisor<span class=\"token punctuation\">.<\/span><span class=\"token function\">astream<\/span><span class=\"token punctuation\">(<\/span>\r\n   interrupt_input<span class=\"token punctuation\">,<\/span>\r\n   config<span class=\"token punctuation\">,<\/span>\r\n    <span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n   <span class=\"token keyword\">for<\/span> key<span class=\"token punctuation\">,<\/span> value <span class=\"token keyword\">in<\/span> chunk<span class=\"token punctuation\">.<\/span><span class=\"token function\">items<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span>\r\n<span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>f<span class=\"token string\">\"Node: '{key}'\"<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token keyword\">if<\/span> <span class=\"token literal-property property\">value<\/span><span class=\"token operator\">:<\/span>\r\n    <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"  value:\"<\/span><span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span>value<span class=\"token punctuation\">)<\/span>\r\n   <span class=\"token function\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"----\"<\/span><span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_51\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<li>15.<\/li>\n<li>16.<\/li>\n<li>17.<\/li>\n<li>18.<\/li>\n<li>19.<\/li>\n<li>20.<\/li>\n<li>21.<\/li>\n<li>22.<\/li>\n<li>23.<\/li>\n<li>24.<\/li>\n<li>25.<\/li>\n<li>26.<\/li>\n<li>27.<\/li>\n<li>28.<\/li>\n<li>29.<\/li>\n<li>30.<\/li>\n<li>31.<\/li>\n<li>32.<\/li>\n<li>33.<\/li>\n<li>34.<\/li>\n<li>35.<\/li>\n<li>36.<\/li>\n<li>37.<\/li>\n<li>38.<\/li>\n<li>39.<\/li>\n<li>40.<\/li>\n<li>41.<\/li>\n<li>42.<\/li>\n<li>43.<\/li>\n<li>44.<\/li>\n<li>45.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u7b2c\u4e00\u6b21\u8fd0\u884c\uff0c\u89e6\u53d1\u4e2d\u65ad\u5e76\u8f93\u51fa\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_52\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">\u8bf7\u8f93\u5165\u7ba1\u7406\u5458id\uff0c\u5982\u9700\u9000\u51fa\u67e5\u8be2\uff0c\u8bf7\u8f93\u5165exit<\/code><\/pre>\n<ul id=\"code_id_52\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u63a5\u7740\uff0c\u7a0b\u5e8f\u6a21\u62df\u7ba1\u7406\u5458\u8f93\u5165\u6b63\u786e\u7684ID\u540e\uff0c\u7ee7\u7eed\u6267\u884c\u56fe\uff0cbooking_info_assistant\u67e5\u8be2\u5230\u957f\u671f\u8bb0\u5fc6\uff0c\u5e76\u8f93\u51fa\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_53\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">\u5df2\u627e\u5230\u9884\u8ba2\u4fe1\u606f\uff1a<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">'user_id'<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">'user_123'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string-property property\">'hotel_name'<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">'\u5317\u4eac\u738b\u5e9c\u4e95\u5e0c\u5c14\u987f\u9152\u5e97'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string-property property\">'date'<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">'2025-11-13\u52302025-11-14'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string-property property\">'num_guests'<\/span><span class=\"token operator\">:<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">]<\/span><\/code><\/pre>\n<ul id=\"code_id_53\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u6700\u7ec8\uff0csupervisor\u8fd4\u56de\u6700\u7ec8\u7684\u7ed3\u679c\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_54\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">\u7528\u6237\u9884\u5b9a\u7684\u9152\u5e97\u4fe1\u606f\u5982\u4e0b\uff1a\\n<span class=\"token operator\">-<\/span> \u7528\u6237<span class=\"token constant\">ID<\/span><span class=\"token operator\">:<\/span> user_123\\n<span class=\"token operator\">-<\/span> \u9152\u5e97\u540d\u79f0<span class=\"token operator\">:<\/span> \u5317\u4eac\u738b\u5e9c\u4e95\u5e0c\u5c14\u987f\u9152\u5e97\\n<span class=\"token operator\">-<\/span> \u9884\u5b9a\u65e5\u671f<span class=\"token operator\">:<\/span> <span class=\"token number\">2025<\/span><span class=\"token operator\">-<\/span><span class=\"token number\">11<\/span><span class=\"token operator\">-<\/span><span class=\"token number\">13<\/span>\u5230<span class=\"token number\">2025<\/span><span class=\"token operator\">-<\/span><span class=\"token number\">11<\/span><span class=\"token operator\">-<\/span><span class=\"token number\">14<\/span>\\n<span class=\"token operator\">-<\/span> \u5ba2\u4eba\u6570<span class=\"token operator\">:<\/span> <span class=\"token number\">1<\/span><\/code><\/pre>\n<ul id=\"code_id_54\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h4>6. \u672a\u6765\u5de5\u4f5c<\/h4>\n<p><strong>(1) \u66f4\u667a\u80fd\u7684\u8bb0\u5fc6\u7ba1\u7406\u7b56\u7565<\/strong><\/p>\n<p>\u5728\u4e0a\u8ff0\u7684\u793a\u4f8b\uff08\u9884\u5b9a\u9152\u5e97\uff09\u4e2d\uff0c\u6211\u4eec\u4ec5\u5c06\u7528\u6237\u9884\u5b9a\u4fe1\u606f\u76f4\u63a5\u8fdb\u884c\u5b58\u50a8\u3001\u68c0\u7d22\uff0c\u4f46\u5bf9\u4e8esupervisor\u6765\u8bf4\uff0c\u8bb0\u4f4f\u548c\u4e0d\u540c\u7528\u6237\u7684\u8fc7\u5f80\u4ea4\u4e92\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0c\u5728\u540e\u7eed\u7684\u4ea4\u4e92\u4e2d\uff0c\u624d\u80fd\u9488\u5bf9\u4e0d\u540c\u7684\u7528\u6237\uff0c\u7ed9\u51fa\u66f4\u5408\u9002\u7684\u56de\u5e94\u3002\u8ba9Agent\u80fd\u81ea\u4e3b\u51b3\u5b9a\u8bb0\u5fc6\u7684\u5b58\u50a8\u3001\u9057\u5fd8\u3001\u66f4\u65b0\u548c\u68c0\u7d22\u4f18\u5148\u7ea7\uff0c\u624d\u80fd\u771f\u6b63\u6a21\u62df\u4eba\u7c7b\u7684\u8bb0\u5fc6\u8fc7\u7a0b\u3002\u56e0\u6b64\uff0c\u672a\u6765\u9700\u8981\u6539\u8fdb\u8bbe\u8ba1\u66f4\u667a\u80fd\u7684\u8bb0\u5fc6\u7ba1\u7406\u7b56\u7565\u3002<\/p>\n<p><strong>(2) \u8bb0\u5fc6\u9a71\u52a8\u7684\u591a\u667a\u80fd\u4f53\u7cfb\u7edf\u67b6\u6784\u9009\u62e9<\/strong><\/p>\n<p>\u5728\u4e0a\u8ff0\u793a\u4f8b\uff08\u9884\u5b9a\u9152\u5e97\uff09\u4e2d\uff0c\u6211\u4eec\u9009\u62e9\u4e86Supervisor\u67b6\u6784\u8fdb\u884c\u5b9e\u73b0\uff0c\u4f46\u8fd9\u663e\u7136\u5b58\u5728\u7f3a\u9677\uff0c\u7ba1\u7406\u5458\u7cfb\u7edf\u4e0d\u5e94\u8be5\u548c\u7528\u6237\u7cfb\u7edf\u4f7f\u7528\u540c\u4e00\u4e2a\u4e2d\u592e\u667a\u80fd\u4f53\uff0c\u5f53\u7cfb\u7edf\u529f\u80fd\u8d8a\u6765\u8d8a\u5b8c\u5584\u65f6\uff0c\u8fd9\u6837\u7684\u8bbe\u8ba1\u4f1a\u4f7f\u5f97supervisor\u975e\u5e38\u7e41\u6742\u3001\u4e14\u96be\u4ee5\u7ef4\u62a4\uff0cSupervisor\u67b6\u6784\u66f4\u9002\u5408\u9700\u8981\u660e\u786e\u63a7\u5236\u6d41\u7a0b\u548c\u96c6\u4e2d\u51b3\u7b56\u7684\u573a\u666f\u3002\u878d\u5408\u8bb0\u5fc6\u529f\u80fd\u7684Multi-Agent\u7cfb\u7edf\u53ef\u4ee5\u6839\u636e\u5e94\u7528\u573a\u666f\u9009\u62e9\u66f4\u5408\u9002\u7684\u67b6\u6784\uff0c\u4f8b\u5982Hierarchical\u67b6\u6784\uff0c\u53ef\u4ee5\u7528\u4e8e\u4e0d\u540c\u5c42\u7ea7\u7684\u8bb0\u5fc6\u670d\u52a1\u4e8e\u4e0d\u540c\u76ee\u7684\uff08\u4e2a\u4f53\u3001\u56e2\u961f\u3001\u5168\u5c40\uff09\u7684\u573a\u666f\uff1bCustom\u67b6\u6784\uff0c\u9884\u5148\u5b9a\u4e49\u597d\u5404\u4e2aAgent\u7684\u8bb0\u5fc6\u8d70\u5411\uff0c\u6784\u5efa\u66f4\u7075\u6d3b\u7684\u7cfb\u7edf\u3002<\/p>\n<p>\u6587\u7ae0\u6765\u81ea\uff1a51CTO<\/p>\n<\/div>\n<\/div>\n<div class=\"pvc_clear\"><\/div>\n<p id=\"pvc_stats_28411\" class=\"pvc_stats total_only  \" data-element-id=\"28411\" style=\"\"><i class=\"pvc-stats-icon medium\" aria-hidden=\"true\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" version=\"1.0\" viewBox=\"0 0 502 315\" preserveAspectRatio=\"xMidYMid meet\"><g transform=\"translate(0,332) scale(0.1,-0.1)\" fill=\"\" stroke=\"none\"><path d=\"M2394 3279 l-29 -30 -3 -207 c-2 -182 0 -211 15 -242 39 -76 157 -76 196 0 15 31 17 60 15 243 l-3 209 -33 29 c-26 23 -41 29 -80 29 -41 0 -53 -5 -78 -31z\"\/><path d=\"M3085 3251 c-45 -19 -58 -50 -96 -229 -47 -217 -49 -260 -13 -295 52 -53 146 -42 177 20 16 31 87 366 87 410 0 70 -86 122 -155 94z\"\/><path d=\"M1751 3234 c-13 -9 -29 -31 -37 -50 -12 -29 -10 -49 21 -204 19 -94 39 -189 45 -210 14 -50 54 -80 110 -80 34 0 48 6 76 34 21 21 34 44 34 59 0 14 -18 113 -40 219 -37 178 -43 195 -70 221 -36 32 -101 37 -139 11z\"\/><path d=\"M1163 3073 c-36 -7 -73 -59 -73 -102 0 -56 133 -378 171 -413 34 -32 83 -37 129 -13 70 36 67 87 -16 290 -86 209 -89 214 -129 231 -35 14 -42 15 -82 7z\"\/><path d=\"M3689 3066 c-15 -9 -33 -30 -42 -48 -48 -103 -147 -355 -147 -375 0 -98 131 -148 192 -74 13 15 57 108 97 206 80 196 84 226 37 273 -30 30 -99 39 -137 18z\"\/><path d=\"M583 2784 c-38 -19 -67 -74 -58 -113 9 -42 211 -354 242 -373 16 -10 45 -18 66 -18 51 0 107 52 107 100 0 39 -1 41 -124 234 -80 126 -108 162 -133 173 -41 17 -61 16 -100 -3z\"\/><path d=\"M4250 2784 c-14 -9 -74 -91 -133 -183 -95 -150 -107 -173 -107 -213 0 -55 33 -94 87 -104 67 -13 90 8 211 198 130 202 137 225 78 284 -27 27 -42 34 -72 34 -22 0 -50 -8 -64 -16z\"\/><path d=\"M2275 2693 c-553 -48 -1095 -270 -1585 -649 -135 -104 -459 -423 -483 -476 -23 -49 -22 -139 2 -186 73 -142 361 -457 571 -626 285 -228 642 -407 990 -497 242 -63 336 -73 660 -74 310 0 370 5 595 52 535 111 1045 392 1455 803 122 121 250 273 275 326 19 41 19 137 0 174 -41 79 -309 363 -465 492 -447 370 -946 591 -1479 653 -113 14 -422 18 -536 8z m395 -428 c171 -34 330 -124 456 -258 112 -119 167 -219 211 -378 27 -96 24 -300 -5 -401 -72 -255 -236 -447 -474 -557 -132 -62 -201 -76 -368 -76 -167 0 -236 14 -368 76 -213 98 -373 271 -451 485 -162 444 86 934 547 1084 153 49 292 57 452 25z m909 -232 c222 -123 408 -262 593 -441 76 -74 138 -139 138 -144 0 -16 -233 -242 -330 -319 -155 -123 -309 -223 -461 -299 l-81 -41 32 46 c18 26 49 83 70 128 143 306 141 649 -6 957 -25 52 -61 116 -79 142 l-34 47 45 -20 c26 -10 76 -36 113 -56z m-2057 25 c-40 -58 -105 -190 -130 -263 -110 -324 -59 -707 132 -981 25 -35 42 -64 37 -64 -19 0 -241 119 -326 174 -188 122 -406 314 -532 468 l-58 71 108 103 c185 178 428 349 672 473 66 33 121 60 123 61 2 0 -10 -19 -26 -42z\"\/><path d=\"M2375 1950 c-198 -44 -350 -190 -395 -379 -18 -76 -8 -221 19 -290 114 -284 457 -406 731 -260 98 52 188 154 231 260 27 69 37 214 19 290 -38 163 -166 304 -326 360 -67 23 -215 33 -279 19z\"\/><\/g><\/svg><\/i> <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"16\" alt=\"Loading\" src=\"https:\/\/aif.amtbbs.org\/wp-content\/plugins\/page-views-count\/ajax-loader-2x.gif\" border=0 \/><\/p>\n<div class=\"pvc_clear\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8Agent Memory\u7684\u6838\u5fc3\u6982\u5ff5\uff0c\u5e76\u805a\u7126\u4e8eLangGraph\u6846\u67b6\u4e0b\u7684\u957f\u77ed\u671f\u8bb0\u5fc6\u5b9e\u73b0\uff0c\u8be6\u89e3\u77ed\u671f\u4f1a [&hellip;]<\/p>\n<div class=\"pvc_clear\"><\/div>\n<p id=\"pvc_stats_28411\" class=\"pvc_stats total_only  \" data-element-id=\"28411\" style=\"\"><i class=\"pvc-stats-icon medium\" aria-hidden=\"true\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" version=\"1.0\" viewBox=\"0 0 502 315\" preserveAspectRatio=\"xMidYMid meet\"><g transform=\"translate(0,332) scale(0.1,-0.1)\" fill=\"\" stroke=\"none\"><path d=\"M2394 3279 l-29 -30 -3 -207 c-2 -182 0 -211 15 -242 39 -76 157 -76 196 0 15 31 17 60 15 243 l-3 209 -33 29 c-26 23 -41 29 -80 29 -41 0 -53 -5 -78 -31z\"\/><path d=\"M3085 3251 c-45 -19 -58 -50 -96 -229 -47 -217 -49 -260 -13 -295 52 -53 146 -42 177 20 16 31 87 366 87 410 0 70 -86 122 -155 94z\"\/><path d=\"M1751 3234 c-13 -9 -29 -31 -37 -50 -12 -29 -10 -49 21 -204 19 -94 39 -189 45 -210 14 -50 54 -80 110 -80 34 0 48 6 76 34 21 21 34 44 34 59 0 14 -18 113 -40 219 -37 178 -43 195 -70 221 -36 32 -101 37 -139 11z\"\/><path d=\"M1163 3073 c-36 -7 -73 -59 -73 -102 0 -56 133 -378 171 -413 34 -32 83 -37 129 -13 70 36 67 87 -16 290 -86 209 -89 214 -129 231 -35 14 -42 15 -82 7z\"\/><path d=\"M3689 3066 c-15 -9 -33 -30 -42 -48 -48 -103 -147 -355 -147 -375 0 -98 131 -148 192 -74 13 15 57 108 97 206 80 196 84 226 37 273 -30 30 -99 39 -137 18z\"\/><path d=\"M583 2784 c-38 -19 -67 -74 -58 -113 9 -42 211 -354 242 -373 16 -10 45 -18 66 -18 51 0 107 52 107 100 0 39 -1 41 -124 234 -80 126 -108 162 -133 173 -41 17 -61 16 -100 -3z\"\/><path d=\"M4250 2784 c-14 -9 -74 -91 -133 -183 -95 -150 -107 -173 -107 -213 0 -55 33 -94 87 -104 67 -13 90 8 211 198 130 202 137 225 78 284 -27 27 -42 34 -72 34 -22 0 -50 -8 -64 -16z\"\/><path d=\"M2275 2693 c-553 -48 -1095 -270 -1585 -649 -135 -104 -459 -423 -483 -476 -23 -49 -22 -139 2 -186 73 -142 361 -457 571 -626 285 -228 642 -407 990 -497 242 -63 336 -73 660 -74 310 0 370 5 595 52 535 111 1045 392 1455 803 122 121 250 273 275 326 19 41 19 137 0 174 -41 79 -309 363 -465 492 -447 370 -946 591 -1479 653 -113 14 -422 18 -536 8z m395 -428 c171 -34 330 -124 456 -258 112 -119 167 -219 211 -378 27 -96 24 -300 -5 -401 -72 -255 -236 -447 -474 -557 -132 -62 -201 -76 -368 -76 -167 0 -236 14 -368 76 -213 98 -373 271 -451 485 -162 444 86 934 547 1084 153 49 292 57 452 25z m909 -232 c222 -123 408 -262 593 -441 76 -74 138 -139 138 -144 0 -16 -233 -242 -330 -319 -155 -123 -309 -223 -461 -299 l-81 -41 32 46 c18 26 49 83 70 128 143 306 141 649 -6 957 -25 52 -61 116 -79 142 l-34 47 45 -20 c26 -10 76 -36 113 -56z m-2057 25 c-40 -58 -105 -190 -130 -263 -110 -324 -59 -707 132 -981 25 -35 42 -64 37 -64 -19 0 -241 119 -326 174 -188 122 -406 314 -532 468 l-58 71 108 103 c185 178 428 349 672 473 66 33 121 60 123 61 2 0 -10 -19 -26 -42z\"\/><path d=\"M2375 1950 c-198 -44 -350 -190 -395 -379 -18 -76 -8 -221 19 -290 114 -284 457 -406 731 -260 98 52 188 154 231 260 27 69 37 214 19 290 -38 163 -166 304 -326 360 -67 23 -215 33 -279 19z\"\/><\/g><\/svg><\/i> <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"16\" alt=\"Loading\" src=\"https:\/\/aif.amtbbs.org\/wp-content\/plugins\/page-views-count\/ajax-loader-2x.gif\" border=0 \/><\/p>\n<div class=\"pvc_clear\"><\/div>\n","protected":false},"author":56,"featured_media":28412,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,23,20,80],"tags":[2017],"class_list":["post-28411","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ai","category-23","category-20","category-80","tag--ai--langgraph-"],"_links":{"self":[{"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/posts\/28411","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/users\/56"}],"replies":[{"embeddable":true,"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/comments?post=28411"}],"version-history":[{"count":1,"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/posts\/28411\/revisions"}],"predecessor-version":[{"id":28415,"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/posts\/28411\/revisions\/28415"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/media\/28412"}],"wp:attachment":[{"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/media?parent=28411"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/categories?post=28411"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/tags?post=28411"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}