{"id":27887,"date":"2025-11-04T08:46:07","date_gmt":"2025-11-04T00:46:07","guid":{"rendered":"https:\/\/aif.amtbbs.org\/?p=27887"},"modified":"2025-11-04T08:46:07","modified_gmt":"2025-11-04T00:46:07","slug":"langchain-%e5%a4%a7%e6%a8%a1%e5%9e%8b%e5%ba%94%e7%94%a8%e5%bc%80%e5%8f%91%e6%a1%86%e6%9e%b6%ef%bc%9a%e4%bb%8e-rag-%e5%88%b0-agent-%e7%9a%84%e5%ae%8c%e6%95%b4%e6%8c%87%e5%8d%97","status":"publish","type":"post","link":"https:\/\/aif.amtbbs.org\/index.php\/2025\/11\/04\/27887\/","title":{"rendered":"LangChain \u5927\u6a21\u578b\u5e94\u7528\u5f00\u53d1\u6846\u67b6\uff1a\u4ece RAG \u5230 Agent \u7684\u5b8c\u6574\u6307\u5357"},"content":{"rendered":"<div class=\"article-desc\">\u672c\u6587\u5c06\u4ece\u96f6\u5230\u4e00\u5730\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528 LangChain \u6784\u5efa\u4ece\u68c0\u7d22\u589e\u5f3a\u751f\u6210\uff08RAG\uff09\u5230\u667a\u80fd\u4ee3\u7406\uff08Agent\uff09\u7684\u5b8c\u6574\u5e94\u7528\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>\u5728AI\u5927\u6a21\u578b\u65f6\u4ee3\uff0cPython\u4ee523.08%\u7684\u5e02\u573a\u4efd\u989d\u8fde\u7eed\u4e94\u5e74\u7a33\u5c45\u7f16\u7a0b\u8bed\u8a00\u699c\u9996\uff0c\u5728AI\u3001\u6570\u636e\u79d1\u5b66\u3001\u6df1\u5ea6\u5b66\u4e60\u7b49\u524d\u6cbf\u6280\u672f\u4e2d\u7684\u5e94\u7528\u5c24\u4e3a\u5e7f\u6cdb\u3002\u800cLangChain\u4f5c\u4e3a\u4e00\u4e2a\u57fa\u4e8e\u5927\u8bed\u8a00\u6a21\u578b(LLM)\u7684\u5e94\u7528\u7a0b\u5e8f\u5f00\u53d1\u6846\u67b6\uff0c\u63d0\u4f9b\u4e86\u4e00\u6574\u5957\u5de5\u5177\u3001\u7ec4\u4ef6\u548c\u63a5\u53e3\uff0c\u7b80\u5316\u4e86\u521b\u5efa\u5927\u6a21\u578b\u5e94\u7528\u7a0b\u5e8f\u7684\u8fc7\u7a0b\uff0c\u5df2\u7ecf\u6210\u4e3a\u5927\u6a21\u578b\u5e94\u7528\u5f00\u53d1\u7684\u4e8b\u5b9e\u6807\u51c6\u3002\u672c\u6587\u5c06\u4ece\u96f6\u5230\u4e00\u5730\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528LangChain\u6784\u5efa\u4ece\u68c0\u7d22\u589e\u5f3a\u751f\u6210(RAG)\u5230\u667a\u80fd\u4ee3\u7406(Agent)\u7684\u5b8c\u6574\u5e94\u7528\u3002<\/p>\n<p><img data-dominant-color=\"12752d\" data-has-transparency=\"false\" style=\"--dominant-color: #12752d;\" loading=\"lazy\" decoding=\"async\" class=\"not-transparent alignnone size-full wp-image-27888\" src=\"https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/11\/f546a91260d823e50cf101bddd26ddf1cc663a.jpg\" width=\"1248\" height=\"696\" srcset=\"https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/11\/f546a91260d823e50cf101bddd26ddf1cc663a.jpg 1248w, https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/11\/f546a91260d823e50cf101bddd26ddf1cc663a-300x167.jpg 300w, https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/11\/f546a91260d823e50cf101bddd26ddf1cc663a-1024x571.jpg 1024w, https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/11\/f546a91260d823e50cf101bddd26ddf1cc663a-150x84.jpg 150w, https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/11\/f546a91260d823e50cf101bddd26ddf1cc663a-768x428.jpg 768w\" sizes=\"auto, (max-width: 1248px) 100vw, 1248px\" \/><\/p>\n<h3>\u4e00\u3001LangChain\u7684\u6838\u5fc3\u4ef7\u503c<\/h3>\n<h4>1. \u4e3a\u4ec0\u4e48\u9700\u8981LangChain<\/h4>\n<p>\u76f4\u63a5\u8c03\u7528LLM API\u53ea\u80fd\u5b9e\u73b0\u57fa\u7840\u7684\u6587\u672c\u751f\u6210\u529f\u80fd\u3002\u4f46\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u6211\u4eec\u9700\u8981\uff1a<\/p>\n<ul data-id=\"u738a58b-1tHsWnM4\">\n<li data-id=\"ld70c578-FZrZtgcb\">\u4e0e\u5916\u90e8\u6570\u636e\u4ea4\u4e92\uff1a\u8ba9\u5927\u6a21\u578b\u80fd\u591f\u7406\u89e3\u548c\u5904\u7406\u7279\u5b9a\u9886\u57df\u7684\u77e5\u8bc6<\/li>\n<li data-id=\"ld70c578-I7M0Hirf\">\u96c6\u6210\u591a\u4e2aLLM\uff1a\u5728\u4e0d\u540c\u573a\u666f\u4f7f\u7528\u4e0d\u540c\u7684\u6a21\u578b<\/li>\n<li data-id=\"ld70c578-nOWZ227h\">\u6dfb\u52a0\u5de5\u5177\u652f\u6301\uff1a\u8ba9\u5927\u6a21\u578b\u80fd\u591f\u8c03\u7528\u8ba1\u7b97\u5668\u3001\u641c\u7d22\u5f15\u64ce\u7b49\u5916\u90e8\u5de5\u5177<\/li>\n<li data-id=\"ld70c578-Mc7tux30\">\u7ba1\u7406\u4e0a\u4e0b\u6587\uff1a\u7ef4\u62a4\u5bf9\u8bdd\u5386\u53f2\u548c\u72b6\u6001<\/li>\n<li data-id=\"ld70c578-dWHlsdsW\">\u5904\u7406\u590d\u6742\u6d41\u7a0b\uff1a\u7ec4\u7ec7\u591a\u6b65\u9aa4\u7684\u64cd\u4f5c\u6d41\u7a0b<\/li>\n<\/ul>\n<p>LangChain\u6b63\u662f\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\u800c\u8bde\u751f\u7684\u3002LangChain\u53ef\u4ee5\u5c06LLM\u6a21\u578b\u3001\u5411\u91cf\u6570\u636e\u5e93\u3001\u4ea4\u4e92\u5c42Prompt\u3001\u5916\u90e8\u77e5\u8bc6\u3001\u5916\u90e8\u5de5\u5177\u6574\u5408\u5230\u4e00\u8d77\uff0c\u8fdb\u800c\u53ef\u4ee5\u81ea\u7531\u6784\u5efaLLM\u5e94\u7528\u3002<\/p>\n<h4>2. LangChain\u7684\u67b6\u6784\u7ec4\u6210<\/h4>\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\"># LangChain\u6838\u5fc3\u7ec4\u4ef6\r\nfrom langchain<span class=\"token punctuation\">.<\/span>chat_models <span class=\"token keyword\">import<\/span> ChatOpenAI\r\nfrom langchain<span class=\"token punctuation\">.<\/span>prompts <span class=\"token keyword\">import<\/span> ChatPromptTemplate\r\nfrom langchain<span class=\"token punctuation\">.<\/span>schema<span class=\"token punctuation\">.<\/span>output_parser <span class=\"token keyword\">import<\/span> StrOutputParser\r\nfrom langchain<span class=\"token punctuation\">.<\/span>memory <span class=\"token keyword\">import<\/span> ConversationBufferMemory\r\n\r\n# Models\uff1a\u9009\u62e9\u5927\u8bed\u8a00\u6a21\u578b\r\nllm <span class=\"token operator\">=<\/span> <span class=\"token function\">ChatOpenAI<\/span><span class=\"token punctuation\">(<\/span>model_name<span class=\"token operator\">=<\/span><span class=\"token string\">\"gpt-3.5-turbo\"<\/span><span class=\"token punctuation\">,<\/span> temperature<span class=\"token operator\">=<\/span><span class=\"token number\">0.7<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\n# Prompts\uff1a\u8bbe\u8ba1\u63d0\u793a\u6a21\u677f\r\nprompt <span class=\"token operator\">=<\/span> ChatPromptTemplate<span class=\"token punctuation\">.<\/span><span class=\"token function\">from_template<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token string\">\"You are a helpful assistant. Answer the following question: {question}\"<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\n# Output Parser\uff1a\u89e3\u6790\u8f93\u51fa\r\noutput_parser <span class=\"token operator\">=<\/span> <span class=\"token function\">StrOutputParser<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\n# Memory\uff1a\u4fdd\u5b58\u5bf9\u8bdd\u5386\u53f2\r\nmemory <span class=\"token operator\">=<\/span> <span class=\"token function\">ConversationBufferMemory<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\n# Chain\uff1a\u7ec4\u7ec7\u6d41\u7a0b\r\nchain <span class=\"token operator\">=<\/span> prompt <span class=\"token operator\">|<\/span> llm <span class=\"token operator\">|<\/span> output_parser<\/code><\/pre>\n<ul id=\"code_id_0\" 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<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h3>\u4e8c\u3001\u4ece\u57fa\u7840\u5230\u9ad8\u7ea7\u7684\u5b8c\u6574\u5e94\u7528<\/h3>\n<h4>1. \u57fa\u7840\u7684LLM\u94fe\u5f0f\u8c03\u7528<\/h4>\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<span class=\"token punctuation\">.<\/span>chat_models <span class=\"token keyword\">import<\/span> ChatOpenAI\r\nfrom langchain<span class=\"token punctuation\">.<\/span>prompts <span class=\"token keyword\">import<\/span> ChatPromptTemplate\r\nfrom langchain<span class=\"token punctuation\">.<\/span>schema<span class=\"token punctuation\">.<\/span>output_parser <span class=\"token keyword\">import<\/span> StrOutputParser\r\n\r\n# \u521b\u5efa<span class=\"token constant\">LLM<\/span>\r\nllm <span class=\"token operator\">=<\/span> <span class=\"token function\">ChatOpenAI<\/span><span class=\"token punctuation\">(<\/span>model_name<span class=\"token operator\">=<\/span><span class=\"token string\">\"gpt-4\"<\/span><span class=\"token punctuation\">,<\/span> temperature<span class=\"token operator\">=<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\n# \u5b9a\u4e49\u63d0\u793a\u6a21\u677f\r\ntemplate <span class=\"token operator\">=<\/span> <span class=\"token string\">\"\"<\/span>\"\u8bf7\u6839\u636e\u4ee5\u4e0b\u4fe1\u606f\u56de\u7b54\u95ee\u9898\uff1a\r\n\u4fe1\u606f\uff1a<span class=\"token punctuation\">{<\/span>context<span class=\"token punctuation\">}<\/span>\r\n\u95ee\u9898\uff1a<span class=\"token punctuation\">{<\/span>question<span class=\"token punctuation\">}<\/span>\r\n\u56de\u7b54\uff1a<span class=\"token string\">\"\"<\/span>\"\r\n\r\nprompt <span class=\"token operator\">=<\/span> ChatPromptTemplate<span class=\"token punctuation\">.<\/span><span class=\"token function\">from_template<\/span><span class=\"token punctuation\">(<\/span>template<span class=\"token punctuation\">)<\/span>\r\n\r\n# \u7ec4\u5efa\u94fe\r\nchain <span class=\"token operator\">=<\/span> prompt <span class=\"token operator\">|<\/span> llm <span class=\"token operator\">|<\/span> <span class=\"token function\">StrOutputParser<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\n# \u6267\u884c\r\nresult <span class=\"token operator\">=<\/span> chain<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\">\"context\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"Python\u662f\u4e00\u95e8\u9ad8\u7ea7\u7f16\u7a0b\u8bed\u8a00\"<\/span><span class=\"token punctuation\">,<\/span>\r\n    <span class=\"token string-property property\">\"question\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"Python\u662f\u4ec0\u4e48\uff1f\"<\/span>\r\n<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<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<h4>2. \u68c0\u7d22\u589e\u5f3a\u751f\u6210(RAG)<\/h4>\n<p>RAG\u662f\u5f53\u524d\u6700\u6d41\u884c\u7684\u5927\u6a21\u578b\u5e94\u7528\u6a21\u5f0f\uff0c\u5141\u8bb8\u5927\u6a21\u578b\u57fa\u4e8e\u7279\u5b9a\u6587\u6863\u8fdb\u884c\u56de\u7b54\uff1a<\/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\">from langchain<span class=\"token punctuation\">.<\/span>document_loaders <span class=\"token keyword\">import<\/span> PyPDFLoader\r\nfrom langchain<span class=\"token punctuation\">.<\/span>text_splitter <span class=\"token keyword\">import<\/span> RecursiveCharacterTextSplitter\r\nfrom langchain<span class=\"token punctuation\">.<\/span>embeddings<span class=\"token punctuation\">.<\/span>openai <span class=\"token keyword\">import<\/span> OpenAIEmbeddings\r\nfrom langchain<span class=\"token punctuation\">.<\/span>vectorstores <span class=\"token keyword\">import<\/span> Chroma\r\nfrom langchain<span class=\"token punctuation\">.<\/span>chains <span class=\"token keyword\">import<\/span> RetrievalQA\r\n\r\n# <span class=\"token number\">1.<\/span> \u52a0\u8f7d\u6587\u6863\r\nloader <span class=\"token operator\">=<\/span> <span class=\"token function\">PyPDFLoader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"document.pdf\"<\/span><span class=\"token punctuation\">)<\/span>\r\ndocuments <span class=\"token operator\">=<\/span> loader<span class=\"token punctuation\">.<\/span><span class=\"token function\">load<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\n# <span class=\"token number\">2.<\/span> \u5206\u5272\u6587\u672c\r\ntext_splitter <span class=\"token operator\">=<\/span> <span class=\"token function\">RecursiveCharacterTextSplitter<\/span><span class=\"token punctuation\">(<\/span>\r\n    chunk_size<span class=\"token operator\">=<\/span><span class=\"token number\">1000<\/span><span class=\"token punctuation\">,<\/span>\r\n    chunk_overlap<span class=\"token operator\">=<\/span><span class=\"token number\">200<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\nsplits <span class=\"token operator\">=<\/span> text_splitter<span class=\"token punctuation\">.<\/span><span class=\"token function\">split_documents<\/span><span class=\"token punctuation\">(<\/span>documents<span class=\"token punctuation\">)<\/span>\r\n\r\n# <span class=\"token number\">3.<\/span> \u521b\u5efa\u5411\u91cf\u5b58\u50a8\r\nembeddings <span class=\"token operator\">=<\/span> <span class=\"token function\">OpenAIEmbeddings<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\nvectorstore <span class=\"token operator\">=<\/span> Chroma<span class=\"token punctuation\">.<\/span><span class=\"token function\">from_documents<\/span><span class=\"token punctuation\">(<\/span>splits<span class=\"token punctuation\">,<\/span> embeddings<span class=\"token punctuation\">)<\/span>\r\n\r\n# <span class=\"token number\">4.<\/span> \u521b\u5efa\u68c0\u7d22\u94fe\r\nqa_chain <span class=\"token operator\">=<\/span> RetrievalQA<span class=\"token punctuation\">.<\/span><span class=\"token function\">from_chain_type<\/span><span class=\"token punctuation\">(<\/span>\r\n    llm<span class=\"token operator\">=<\/span>llm<span class=\"token punctuation\">,<\/span>\r\n    chain_type<span class=\"token operator\">=<\/span><span class=\"token string\">\"stuff\"<\/span><span class=\"token punctuation\">,<\/span>\r\n    retriever<span class=\"token operator\">=<\/span>vectorstore<span class=\"token punctuation\">.<\/span><span class=\"token function\">as_retriever<\/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 number\">5.<\/span> \u6267\u884c\u67e5\u8be2\r\nresult <span class=\"token operator\">=<\/span> qa_chain<span class=\"token punctuation\">.<\/span><span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u6587\u6863\u4e2d\u8bb2\u4e86\u4ec0\u4e48\u5185\u5bb9\uff1f\"<\/span><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<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<h4>3. \u667a\u80fdAgent(\u4ee3\u7406)<\/h4>\n<p>Agent\u662fLangChain\u4e2d\u6700\u5f3a\u5927\u7684\u529f\u80fd\uff0c\u5141\u8bb8\u5927\u6a21\u578b\u6839\u636e\u4efb\u52a1\u81ea\u4e3b\u51b3\u5b9a\u8c03\u7528\u54ea\u4e9b\u5de5\u5177\uff1a<\/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\">from langchain<span class=\"token punctuation\">.<\/span>agents <span class=\"token keyword\">import<\/span> tool<span class=\"token punctuation\">,<\/span> initialize_agent<span class=\"token punctuation\">,<\/span> AgentType\r\nfrom langchain<span class=\"token punctuation\">.<\/span>chat_models <span class=\"token keyword\">import<\/span> ChatOpenAI\r\n<span class=\"token keyword\">import<\/span> asyncio\r\n\r\nllm <span class=\"token operator\">=<\/span> <span class=\"token function\">ChatOpenAI<\/span><span class=\"token punctuation\">(<\/span>model_name<span class=\"token operator\">=<\/span><span class=\"token string\">\"gpt-4\"<\/span><span class=\"token punctuation\">,<\/span> temperature<span class=\"token operator\">=<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\n# \u5b9a\u4e49\u5de5\u5177\r\n@tool\r\ndef <span class=\"token function\">get_weather<\/span><span class=\"token punctuation\">(<\/span>location<span class=\"token operator\">:<\/span> str<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\">\"\u83b7\u53d6\u6307\u5b9a\u57ce\u5e02\u7684\u5929\u6c14\u4fe1\u606f\"<\/span><span class=\"token string\">\"\"<\/span>\r\n    returnf<span class=\"token string\">\"{location}\u4eca\u5929\u5929\u6c14\u6674\u6717\uff0c\u6e29\u5ea625\u00b0C\"<\/span>\r\n\r\n@tool\r\ndef <span class=\"token function\">calculate<\/span><span class=\"token punctuation\">(<\/span>expression<span class=\"token operator\">:<\/span> str<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-<\/span><span class=\"token operator\">&gt;<\/span> float<span class=\"token operator\">:<\/span>\r\n    <span class=\"token string\">\"\"<\/span><span class=\"token string\">\"\u6267\u884c\u6570\u5b66\u8ba1\u7b97\"<\/span><span class=\"token string\">\"\"<\/span>\r\n    <span class=\"token keyword\">return<\/span> <span class=\"token function\">eval<\/span><span class=\"token punctuation\">(<\/span>expression<span class=\"token punctuation\">)<\/span>\r\n\r\n# \u521d\u59cb\u5316Agent\r\ntools <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">[<\/span>get_weather<span class=\"token punctuation\">,<\/span> calculate<span class=\"token punctuation\">]<\/span>\r\nagent <span class=\"token operator\">=<\/span> <span class=\"token function\">initialize_agent<\/span><span class=\"token punctuation\">(<\/span>\r\n    tools<span class=\"token punctuation\">,<\/span>\r\n    llm<span class=\"token punctuation\">,<\/span>\r\n    agent<span class=\"token operator\">=<\/span>AgentType<span class=\"token punctuation\">.<\/span><span class=\"token constant\">CHAT_ZERO_SHOT_REACT_DESCRIPTION<\/span><span class=\"token punctuation\">,<\/span>\r\n    verbose<span class=\"token operator\">=<\/span>True\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\n# \u6267\u884c\u4efb\u52a1\r\nresult <span class=\"token operator\">=<\/span> agent<span class=\"token punctuation\">.<\/span><span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u5317\u4eac\u4eca\u5929\u5929\u6c14\u600e\u4e48\u6837\uff1f\u7136\u540e\u544a\u8bc9\u621125\u4e58\u4ee53\u7b49\u4e8e\u591a\u5c11\uff1f\"<\/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<li>25.<\/li>\n<li>26.<\/li>\n<li>27.<\/li>\n<li>28.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h4>4. \u591a\u94fe\u7f16\u6392<\/h4>\n<p>\u5bf9\u4e8e\u590d\u6742\u5e94\u7528\uff0c\u9700\u8981\u591a\u4e2a\u94fe\u76f8\u4e92\u534f\u4f5c\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\">from langchain<span class=\"token punctuation\">.<\/span>chains <span class=\"token keyword\">import<\/span> SequentialChain<span class=\"token punctuation\">,<\/span> LLMChain\r\nfrom langchain<span class=\"token punctuation\">.<\/span>prompts <span class=\"token keyword\">import<\/span> PromptTemplate\r\n\r\n# \u94fe<span class=\"token number\">1<\/span>\uff1a\u603b\u7ed3\r\nsummary_template <span class=\"token operator\">=<\/span> <span class=\"token string\">\"\u8bf7\u7528\u4e00\u53e5\u8bdd\u603b\u7ed3\u4ee5\u4e0b\u5185\u5bb9\uff1a{text}\"<\/span>\r\nsummary_prompt <span class=\"token operator\">=<\/span> <span class=\"token function\">PromptTemplate<\/span><span class=\"token punctuation\">(<\/span>input_variables<span class=\"token operator\">=<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string\">\"text\"<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> template<span class=\"token operator\">=<\/span>summary_template<span class=\"token punctuation\">)<\/span>\r\nsummary_chain <span class=\"token operator\">=<\/span> <span class=\"token function\">LLMChain<\/span><span class=\"token punctuation\">(<\/span>llm<span class=\"token operator\">=<\/span>llm<span class=\"token punctuation\">,<\/span> prompt<span class=\"token operator\">=<\/span>summary_prompt<span class=\"token punctuation\">)<\/span>\r\n\r\n# \u94fe<span class=\"token number\">2<\/span>\uff1a\u7ffb\u8bd1\r\ntranslate_template <span class=\"token operator\">=<\/span> <span class=\"token string\">\"\u8bf7\u5c06\u4ee5\u4e0b\u5185\u5bb9\u7ffb\u8bd1\u6210\u82f1\u6587\uff1a{summary}\"<\/span>\r\ntranslate_prompt <span class=\"token operator\">=<\/span> <span class=\"token function\">PromptTemplate<\/span><span class=\"token punctuation\">(<\/span>input_variables<span class=\"token operator\">=<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string\">\"summary\"<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> template<span class=\"token operator\">=<\/span>translate_template<span class=\"token punctuation\">)<\/span>\r\ntranslate_chain <span class=\"token operator\">=<\/span> <span class=\"token function\">LLMChain<\/span><span class=\"token punctuation\">(<\/span>llm<span class=\"token operator\">=<\/span>llm<span class=\"token punctuation\">,<\/span> prompt<span class=\"token operator\">=<\/span>translate_prompt<span class=\"token punctuation\">)<\/span>\r\n\r\n# \u7ec4\u7ec7\u6210\u987a\u5e8f\u94fe\r\nsequential_chain <span class=\"token operator\">=<\/span> <span class=\"token function\">SequentialChain<\/span><span class=\"token punctuation\">(<\/span>\r\n    chains<span class=\"token operator\">=<\/span><span class=\"token punctuation\">[<\/span>summary_chain<span class=\"token punctuation\">,<\/span> translate_chain<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>\r\n    input_variables<span class=\"token operator\">=<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string\">\"text\"<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>\r\n    output_variables<span class=\"token operator\">=<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string\">\"summary\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"output\"<\/span><span class=\"token punctuation\">]<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\n# \u6267\u884c\r\nresult <span class=\"token operator\">=<\/span> <span class=\"token function\">sequential_chain<\/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\">\"\u5f88\u957f\u7684\u6587\u672c\u5185\u5bb9...\"<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><\/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<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<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h3>\u4e09\u3001LangChain\u7684\u6027\u80fd\u4f18\u5316<\/h3>\n<h4>1. \u4f7f\u7528\u7f13\u5b58\u51cf\u5c11API\u8c03\u7528<\/h4>\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\">from langchain<span class=\"token punctuation\">.<\/span>cache <span class=\"token keyword\">import<\/span> SQLiteCache\r\nfrom langchain<span class=\"token punctuation\">.<\/span>globals <span class=\"token keyword\">import<\/span> set_llm_cache\r\n<span class=\"token keyword\">import<\/span> langchain\r\n\r\n# \u914d\u7f6e\u7f13\u5b58\r\n<span class=\"token function\">set_llm_cache<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">SQLiteCache<\/span><span class=\"token punctuation\">(<\/span>database_path<span class=\"token operator\">=<\/span><span class=\"token string\">\".langchain.db\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\n# \u4e4b\u540e\u7684\u76f8\u540c\u67e5\u8be2\u4f1a\u4ece\u7f13\u5b58\u4e2d\u83b7\u53d6<\/code><\/pre>\n<ul id=\"code_id_5\" 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<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h4>2. \u6d41\u5f0f\u5904\u7406\u5927\u578b\u6587\u6863<\/h4>\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\"># \u4f7f\u7528\u6d41\u5f0f\u5904\u7406\u800c\u4e0d\u662f\u4e00\u6b21\u6027\u52a0\u8f7d\r\n<span class=\"token keyword\">for<\/span> chunk <span class=\"token keyword\">in<\/span> chain<span class=\"token punctuation\">.<\/span><span class=\"token function\">stream<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"question\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"\u95ee\u9898\"<\/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>chunk<span class=\"token punctuation\">,<\/span> end<span class=\"token operator\">=<\/span><span class=\"token string\">\"\"<\/span><span class=\"token punctuation\">,<\/span> flush<span class=\"token operator\">=<\/span>True<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<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h4>3. \u6279\u91cf\u5904\u7406<\/h4>\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\"># \u6279\u91cf\u6267\u884c\u591a\u4e2a\u67e5\u8be2\r\nquestions <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token string\">\"\u95ee\u98981\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"\u95ee\u98982\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"\u95ee\u98983\"<\/span><span class=\"token punctuation\">]<\/span>\r\nresults <span class=\"token operator\">=<\/span> chain<span class=\"token punctuation\">.<\/span><span class=\"token function\">batch<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string-property property\">\"question\"<\/span><span class=\"token operator\">:<\/span> q<span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">for<\/span> q <span class=\"token keyword\">in<\/span> questions<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_7\" 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<h3>\u56db\u3001\u5e38\u89c1\u7684\u5e94\u7528\u573a\u666f<\/h3>\n<p>\u573a\u666f1\uff1a\u77e5\u8bc6\u5e93\u95ee\u7b54\u7cfb\u7edf<\/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\"># \u6784\u5efa\u4f01\u4e1a\u77e5\u8bc6\u5e93\u95ee\u7b54\u7cfb\u7edf\r\nfrom langchain<span class=\"token punctuation\">.<\/span>chains <span class=\"token keyword\">import<\/span> RetrievalQA\r\n\r\nknowledge_qa <span class=\"token operator\">=<\/span> RetrievalQA<span class=\"token punctuation\">.<\/span><span class=\"token function\">from_chain_type<\/span><span class=\"token punctuation\">(<\/span>\r\n    llm<span class=\"token operator\">=<\/span>llm<span class=\"token punctuation\">,<\/span>\r\n    retriever<span class=\"token operator\">=<\/span>knowledge_base_vectorstore<span class=\"token punctuation\">.<\/span><span class=\"token function\">as_retriever<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\r\n    return_source_documents<span class=\"token operator\">=<\/span>True  # \u8fd4\u56de\u6e90\u6587\u6863\r\n<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<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u573a\u666f2\uff1a\u81ea\u52a8\u5316\u6570\u636e\u5206\u6790<\/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\"># \u8ba9Agent\u81ea\u4e3b\u5206\u6790\u6570\u636e\r\n@tool\r\ndef <span class=\"token function\">analyze_data<\/span><span class=\"token punctuation\">(<\/span>file_path<span class=\"token operator\">:<\/span> str<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\">\"\u5206\u6790CSV\u6587\u4ef6\"<\/span><span class=\"token string\">\"\"<\/span>\r\n    <span class=\"token keyword\">import<\/span> pandas <span class=\"token keyword\">as<\/span> pd\r\n    df <span class=\"token operator\">=<\/span> pd<span class=\"token punctuation\">.<\/span><span class=\"token function\">read_csv<\/span><span class=\"token punctuation\">(<\/span>file_path<span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token keyword\">return<\/span> df<span class=\"token punctuation\">.<\/span><span class=\"token function\">describe<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">to_string<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n\r\n# Agent\u4f1a\u81ea\u4e3b\u51b3\u5b9a\u4f55\u65f6\u8c03\u7528\u6b64\u5de5\u5177<\/code><\/pre>\n<ul id=\"code_id_9\" 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>\u573a\u666f3\uff1a\u591a\u6b65\u9aa4\u5de5\u4f5c\u6d41\u81ea\u52a8\u5316<\/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\"># \u81ea\u52a8\u5b8c\u6210\u590d\u6742\u7684\u4e1a\u52a1\u6d41\u7a0b\r\ncomplex_agent <span class=\"token operator\">=<\/span> <span class=\"token function\">initialize_agent<\/span><span class=\"token punctuation\">(<\/span>\r\n    tools<span class=\"token operator\">=<\/span><span class=\"token punctuation\">[<\/span>database_tool<span class=\"token punctuation\">,<\/span> email_tool<span class=\"token punctuation\">,<\/span> file_tool<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>\r\n    llm<span class=\"token operator\">=<\/span>llm<span class=\"token punctuation\">,<\/span>\r\n    agent<span class=\"token operator\">=<\/span>AgentType<span class=\"token punctuation\">.<\/span><span class=\"token constant\">CHAT_CONVERSATIONAL_REACT_DESCRIPTION<\/span><span class=\"token punctuation\">,<\/span>\r\n    memory<span class=\"token operator\">=<\/span><span class=\"token function\">ConversationBufferMemory<\/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_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<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h3>\u4e94\u3001\u7ed3\u5c3e<\/h3>\n<p>LangChain\u4e0d\u4ec5\u964d\u4f4e\u4e86\u5927\u6a21\u578b\u5e94\u7528\u5f00\u53d1\u7684\u95e8\u69db\uff0c\u66f4\u91cd\u8981\u7684\u662f\u5b83\u63d0\u4f9b\u4e86\u4e00\u5957\u5b8c\u6574\u7684\u3001\u53ef\u6269\u5c55\u7684\u6846\u67b6\u3002\u4ece\u7b80\u5355\u7684\u6587\u672c\u751f\u6210\u5230\u590d\u6742\u7684\u591a\u5de5\u5177\u7f16\u6392\uff0cLangChain\u90fd\u63d0\u4f9b\u4e86\u76f8\u5e94\u7684\u652f\u6301\u3002LangChain\u7684Agent\u6982\u5ff5\u662f\u5176\u7cbe\u9ad3\u6240\u5728\uff0c\u901a\u8fc7\u8ba9\u5927\u6a21\u578b\u81ea\u4e3b\u51b3\u5b9a\u8c03\u7528\u54ea\u4e9b\u5de5\u5177\uff0c\u53ef\u4ee5\u5b9e\u73b0\u771f\u6b63\u7684&#8221;\u667a\u80fd&#8221;\u5e94\u7528\u3002\u968f\u7740\u5927\u6a21\u578b\u6280\u672f\u7684\u4e0d\u65ad\u53d1\u5c55\u548c\u6210\u719f\uff0cLangChain\u8fd9\u6837\u7684\u6846\u67b6\u5c06\u5728\u4ea7\u4e1a\u5e94\u7528\u4e2d\u626e\u6f14\u8d8a\u6765\u8d8a\u91cd\u8981\u7684\u89d2\u8272\u3002<\/p>\n<p>\u6587\u7ae0\u6765\u81ea\uff1a51CTO<\/p>\n<\/div>\n<\/div>\n<div 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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 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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\u4ece\u96f6\u5230\u4e00\u5730\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528 LangChain \u6784\u5efa\u4ece\u68c0\u7d22\u589e\u5f3a\u751f\u6210\uff08RAG\uff09\u5230\u667a\u80fd\u4ee3\u7406\uff08Agent\uff09\u7684\u5b8c\u6574\u5e94 [&hellip;]<\/p>\n<div class=\"pvc_clear\"><\/div>\n<p id=\"pvc_stats_27887\" class=\"pvc_stats total_only  \" data-element-id=\"27887\" 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 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-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":27888,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23,20,80],"tags":[1949],"class_list":["post-27887","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-23","category-20","category-80","tag-langchain--rag--agent-"],"_links":{"self":[{"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/posts\/27887","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=27887"}],"version-history":[{"count":1,"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/posts\/27887\/revisions"}],"predecessor-version":[{"id":27889,"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/posts\/27887\/revisions\/27889"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/media\/27888"}],"wp:attachment":[{"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/media?parent=27887"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/categories?post=27887"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/tags?post=27887"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}