{"id":21094,"date":"2024-07-11T10:14:08","date_gmt":"2024-07-11T02:14:08","guid":{"rendered":"https:\/\/aif.amtbbs.org\/?p=21094"},"modified":"2024-07-11T10:14:08","modified_gmt":"2024-07-11T02:14:08","slug":"%e5%85%a8%e9%9d%a2%e6%8e%8c%e6%8f%a1-go-%e8%af%ad%e8%a8%80-errors-%e6%a0%87%e5%87%86%e5%ba%93%ef%bc%9a%e4%bd%bf%e7%94%a8%e6%8c%87%e5%8d%97%e4%b8%8e%e6%ba%90%e7%a0%81%e6%b7%b1%e5%ba%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/aif.amtbbs.org\/index.php\/2024\/07\/11\/21094\/","title":{"rendered":"\u5168\u9762\u638c\u63e1 Go \u8bed\u8a00 Errors \u6807\u51c6\u5e93\uff1a\u4f7f\u7528\u6307\u5357\u4e0e\u6e90\u7801\u6df1\u5ea6\u89e3\u6790"},"content":{"rendered":"<div><img data-dominant-color=\"929d9f\" data-has-transparency=\"false\" style=\"--dominant-color: #929d9f;\" loading=\"lazy\" decoding=\"async\" class=\"not-transparent alignnone size-full wp-image-21095\" src=\"https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2024\/07\/a3670a185661c22e219679f1f8e9c8740649e1.jpg\" width=\"416\" height=\"232\" srcset=\"https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2024\/07\/a3670a185661c22e219679f1f8e9c8740649e1.jpg 416w, https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2024\/07\/a3670a185661c22e219679f1f8e9c8740649e1-300x167.jpg 300w, https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2024\/07\/a3670a185661c22e219679f1f8e9c8740649e1-150x84.jpg 150w\" sizes=\"auto, (max-width: 416px) 100vw, 416px\" \/><\/div>\n<div class=\"article-desc\">\u9996\u5148\u4ece\u8be5\u5e93\u7684\u57fa\u672c\u4f7f\u7528\u8bb2\u8d77\uff0c\u4ecb\u7ecd\u4e86\u5982\u4f55\u521b\u5efa\u9519\u8bef\u3001\u5339\u914d\u9519\u8bef\u3001\u65ad\u8a00\u9519\u8bef\u548c\u5305\u88c5\u9519\u8bef\u4ee5\u53ca\u83b7\u53d6\u539f\u59cb\u9519\u8bef\u3002\u63a5\u7740\uff0c\u5bf9 errors \u6807\u51c6\u5e93\u7684\u6e90\u7801\u8fdb\u884c\u89e3\u6790\uff0c\u7406\u89e3\u5404\u7ed3\u6784\u4f53\u7684\u5b9a\u4e49\u548c\u5404\u51fd\u6570\u7684\u5185\u90e8\u5de5\u4f5c\u539f\u7406\u3002<\/div>\n<div id=\"postspictures\" class=\"article-content\">\n<div id=\"container\" class=\"container am-engine\" data-v-1d7a5742=\"\" data-element=\"root\">\n<h2>\u524d\u8a00<\/h2>\n<p>\u5728\u00a0Go\u00a0\u8bed\u8a00\u4e2d\uff0c\u9519\u8bef\u5904\u7406\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u90e8\u5206\u3002Go\u00a0\u5b98\u65b9\u63d0\u4f9b\u4e86\u4e00\u4e2a\u8f7b\u91cf\u7ea7\u7684\u00a0errors\u00a0\u6807\u51c6\u5e93\uff0c\u7528\u4e8e\u521b\u5efa\u548c\u5904\u7406\u9519\u8bef\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u00a0Go\u00a0\u7684\u00a0errors\u00a0\u6807\u51c6\u5e93\uff0c\u5e76\u6df1\u5165\u89e3\u6790\u5176\u6e90\u7801\u5b9e\u73b0\u3002<\/p>\n<p>\u51c6\u5907\u597d\u4e86\u5417\uff1f\u51c6\u5907\u4e00\u676f\u4f60\u6700\u559c\u6b22\u7684\u5496\u5561\u6216\u8336\uff0c\u968f\u7740\u672c\u6587\u4e00\u63a2\u7a76\u7adf\u5427\u3002<\/p>\n<p>Go \u7248\u672c\uff1a1.22.0<\/p>\n<h2>error \u63a5\u53e3<\/h2>\n<p>\u4e0b\u9762\u7684\u5185\u5bb9\u4f1a\u63d0\u5230\u00a0error\u00a0\u63a5\u53e3\uff0c\u56e0\u6b64\u6211\u4eec\u6709\u5fc5\u8981\u5148\u4e86\u89e3\u4e00\u4e0b\u00a0error\u00a0\u63a5\u53e3\u7684\u76f8\u5173\u5b9a\u4e49\u3002<\/p>\n<p>\u5728\u00a0Go\u00a0\u8bed\u8a00\u4e2d\uff0cerror\u00a0\u662f\u4e00\u4e2a\u5185\u7f6e\u63a5\u53e3\uff0c\u5b83\u5b9a\u4e49\u4e86\u4e00\u4e2a\u00a0Error\u00a0\u65b9\u6cd5\u3002<\/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-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token keyword\">type<\/span> error interface {\r\n    Error<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> string\r\n}<\/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>\u4efb\u4f55\u5b9e\u73b0\u4e86\u00a0error\u00a0\u63a5\u53e3\u7684\u7c7b\u578b\uff0c\u90fd\u53ef\u4ee5\u5f53\u505a\u00a0\u9519\u8bef\u7c7b\u578b\u00a0\u6765\u4f7f\u7528\u3002<\/p>\n<h2>errors \u6807\u51c6\u5e93\u7684\u57fa\u672c\u4f7f\u7528<\/h2>\n<h3>\u9519\u8bef\u521b\u5efa\uff1aNew \u51fd\u6570<\/h3>\n<p>errors.New\u00a0\u51fd\u6570\u7528\u4e8e\u521b\u5efa\u5e76\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u00a0error\u00a0\u7c7b\u578b\u7684\u5bf9\u8c61\u3002<\/p>\n<p>errors.New\u00a0\u51fd\u6570\u7684\u7b7e\u540d\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_1\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\">func New<span class=\"token punctuation\">(<\/span><span class=\"token keyword\">text<\/span> string<span class=\"token punctuation\">)<\/span> error<\/code><\/pre>\n<ul id=\"code_id_1\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul data-id=\"u738a58b-RGcDVcQh\">\n<li data-id=\"ld70c578-bnCXgpVb\">\u53c2\u6570\uff1atext\u00a0\u662f\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u8868\u793a\u9519\u8bef\u7684\u63cf\u8ff0\u3002<\/li>\n<li data-id=\"ld70c578-f3hlrq2S\">\u8fd4\u56de\u503c\uff1a\u8fd4\u56de\u4e00\u4e2a\u00a0error\u00a0\u7c7b\u578b\u7684\u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61\u5305\u542b\u4e86\u4f20\u5165\u7684\u6587\u672c\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<p>\u4e0b\u9762\u662f\u00a0New\u00a0\u51fd\u6570\u7684\u4ee3\u7801\u4f7f\u7528\u793a\u4f8b\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-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token comment\">\/\/ https:\/\/github.com\/chenmingyong0423\/blog\/blob\/master\/tutorial-code\/go\/errors\/new\/main.go<\/span>\r\npackage main\r\n\r\n<span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">(<\/span>\r\n <span class=\"token string\">\"errors\"<\/span>\r\n <span class=\"token string\">\"fmt\"<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\nfunc main<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> {\r\n err :<span class=\"token operator\">=<\/span> <span class=\"token keyword\">errors<\/span><span class=\"token punctuation\">.<\/span>New<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u8fd9\u662f\u4e00\u4e2a\u9519\u8bef\"<\/span><span class=\"token punctuation\">)<\/span>\r\n fmt<span class=\"token punctuation\">.<\/span>Println<span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">.<\/span>Error<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\">\/\/ \u8fd9\u662f\u4e00\u4e2a\u9519\u8bef<\/span>\r\n}<\/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<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h3>\u9519\u8bef\u5339\u914d\uff1aIs \u51fd\u6570<\/h3>\n<p>errors.Is\u00a0\u51fd\u6570\u7528\u4e8e\u5224\u65ad\u4e24\u4e2a\u00a0error\u00a0\u662f\u5426\u76f8\u7b49\uff0c\u901a\u5e38\u7528\u4e8e\u68c0\u67e5\u4e00\u4e2a\u9519\u8bef\u94fe\u4e2d\u662f\u5426\u5305\u542b\u67d0\u4e2a\u7279\u5b9a\u7684\u9519\u8bef\u3002\u5f53\u4e00\u4e2a\u9519\u8bef\u88ab\u5305\u88c5\u591a\u5c42\u65f6\uff0c\u8be5\u51fd\u6570\u5c06\u4f1a\u9012\u5f52\u68c0\u67e5\u9519\u8bef\u94fe\u7684\u6bcf\u4e00\u5c42\uff0c\u786e\u5b9a\u662f\u5426\u5b58\u5728\u4e0e\u76ee\u6807\u9519\u8bef\u76f8\u7b49\u7684\u9519\u8bef\u3002<\/p>\n<p>errors.Is\u00a0\u51fd\u6570\u7684\u7b7e\u540d\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_3\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\">func <span class=\"token operator\">Is<\/span><span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">,<\/span> target error<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">bool<\/span><\/code><\/pre>\n<ul id=\"code_id_3\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<ul data-id=\"u738a58b-fnW8hXDn\">\n<li data-id=\"ld70c578-bbHT3lAY\">\u53c2\u6570\uff1a<\/li>\n<\/ul>\n<p>err\u00a0\u4e3a\u8981\u68c0\u67e5\u7684\u9519\u8bef\u3002<\/p>\n<p>target\u00a0\u4e3a\u76ee\u6807\u9519\u8bef\u3002errors.Is\u00a0\u51fd\u6570\u4f1a\u68c0\u67e5\u00a0err\u00a0\u662f\u5426\u7b49\u4e8e\u00a0target\uff0c\u6216\u00a0err\u00a0\u94fe\u4e2d\u662f\u5426\u5b58\u5728\u4e00\u4e2a\u9519\u8bef\u7b49\u4e8e\u00a0target\u3002<\/p>\n<ul data-id=\"u738a58b-SRZHTHl7\">\n<li data-id=\"ld70c578-W9v7ZBLP\">\u8fd4\u56de\u503c\uff1a \u8fd4\u56de\u4e00\u4e2a\u00a0bool\u00a0\u7c7b\u578b\u7684\u503c\u3002\u5982\u679c\u4e24\u4e2a\u00a0error\u00a0\u76f8\u7b49\uff0c\u8fd4\u56de\u00a0true\uff0c\u5426\u5219\u8fd4\u56de\u00a0false\u3002<\/li>\n<\/ul>\n<p>\u4e0b\u9762\u662f\u00a0Is\u00a0\u51fd\u6570\u7684\u4ee3\u7801\u4f7f\u7528\u793a\u4f8b\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-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token comment\">\/\/ https:\/\/github.com\/chenmingyong0423\/blog\/blob\/master\/tutorial-code\/go\/errors\/is\/main.go<\/span>\r\npackage main\r\n\r\n<span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">(<\/span>\r\n <span class=\"token string\">\"errors\"<\/span>\r\n <span class=\"token string\">\"fmt\"<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\nvar <span class=\"token punctuation\">(<\/span>\r\n ErrUserNotFound <span class=\"token operator\">=<\/span> <span class=\"token keyword\">errors<\/span><span class=\"token punctuation\">.<\/span>New<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"user not found\"<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\nfunc main<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> {\r\n err :<span class=\"token operator\">=<\/span> fmt<span class=\"token punctuation\">.<\/span>Errorf<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"%w: name=%s\"<\/span><span class=\"token punctuation\">,<\/span> ErrUserNotFound<span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"\u9648\u660e\u52c7\"<\/span><span class=\"token punctuation\">)<\/span>\r\n <span class=\"token keyword\">if<\/span> <span class=\"token keyword\">errors<\/span><span class=\"token punctuation\">.<\/span><span class=\"token operator\">Is<\/span><span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">,<\/span> ErrUserNotFound<span class=\"token punctuation\">)<\/span> {\r\n  fmt<span class=\"token punctuation\">.<\/span>Println<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"error is ErrUserNotFound\"<\/span><span class=\"token punctuation\">)<\/span>\r\n } <span class=\"token keyword\">else<\/span> {\r\n  fmt<span class=\"token punctuation\">.<\/span>Println<span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">)<\/span>\r\n }\r\n}<\/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<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u793a\u4f8b\u4e2d\uff0c\u9996\u5148\u5b9a\u4e49\u4e86\u4e00\u4e2a\u9519\u8bef\u53d8\u91cf\u00a0ErrUserNotFound\u00a0\uff0c\u7528\u4e8e\u8868\u793a\u00a0\u7528\u6237\u672a\u627e\u5230\u00a0\u7684\u9519\u8bef\u60c5\u51b5\u3002\u63a5\u7740\u5728\u00a0main\u00a0\u51fd\u6570\u4e2d\uff0c\u5229\u7528\u00a0fmt.Errorf\u00a0\u51fd\u6570\u5305\u88c5\u4e86\u539f\u59cb\u7684\u00a0ErrUserNotFound\u00a0\u9519\u8bef\u5e76\u6dfb\u52a0\u4e86\u4e0a\u4e0b\u6587\u4fe1\u606f\u00a0name=\u9648\u660e\u52c7\u3002\u7136\u540e\u4f7f\u7528\u00a0errors.Is\u00a0\u5224\u65ad\u00a0err\u00a0\u662f\u5426\u7b49\u4e8e\u6216\u5305\u542b\u00a0ErrUserNotFound\u3002\u7531\u4e8e\u5728\u521b\u5efa\u00a0err\u00a0\u65f6\u5df2\u7ecf\u5305\u542b\u4e86\u00a0ErrUserNotFound\u00a0\u9519\u8bef\uff0c\u56e0\u6b64\u00a0errors.Is\u00a0\u51fd\u6570\u4f1a\u8fd4\u56de\u00a0true\uff0c\u7a0b\u5e8f\u4f1a\u8f93\u51fa\u00a0error is ErrUserNotFound\u3002<\/p>\n<h3>\u9519\u8bef\u65ad\u8a00\uff1aAs \u51fd\u6570<\/h3>\n<p>errors.As\u00a0\u51fd\u6570\u7528\u4e8e\u68c0\u67e5\u4e00\u4e2a\u9519\u8bef\u662f\u5426\u53ef\u4ee5\u88ab\u65ad\u8a00\u4e3a\u7279\u5b9a\u7684\u9519\u8bef\u7c7b\u578b\uff0c\u65ad\u8a00\u6210\u529f\u5219\u5c06\u9519\u8bef\u7684\u503c\u8d4b\u7ed9\u7279\u5b9a\u7684\u9519\u8bef\u53d8\u91cf\u3002<\/p>\n<p>errors.As\u00a0\u51fd\u6570\u7684\u7b7e\u540d\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_5\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\">func <span class=\"token keyword\">As<\/span><span class=\"token punctuation\">(<\/span>err error<span class=\"token punctuation\">,<\/span> target <span class=\"token keyword\">any<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">bool<\/span><\/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<ul data-id=\"u738a58b-fT28hXjA\">\n<li data-id=\"ld70c578-a7KwvDal\">\u53c2\u6570\uff1a<\/li>\n<\/ul>\n<p>err\u00a0\u4e3a\u88ab\u65ad\u8a00\u7684\u9519\u8bef\u3002<\/p>\n<p>target\u00a0\u4e3a\u76ee\u6807\u9519\u8bef\uff0c\u5b83\u5fc5\u987b\u662f\u4e00\u4e2a\u975e\u7a7a\u6307\u9488\u3002<\/p>\n<ul data-id=\"u738a58b-cWQPNeEo\">\n<li data-id=\"ld70c578-8WKz7voV\">\u8fd4\u56de\u503c\uff1a\u8fd4\u56de\u4e00\u4e2a\u00a0bool\u00a0\u7c7b\u578b\u7684\u503c\u3002\u5982\u679c\u65ad\u8a00\u6210\u529f\uff0c\u8fd4\u56de\u00a0true\uff0c\u5426\u5219\u8fd4\u56de\u00a0false\u3002<\/li>\n<\/ul>\n<p>\u4e0b\u9762\u662f\u00a0As\u00a0\u51fd\u6570\u7684\u4ee3\u7801\u4f7f\u7528\u793a\u4f8b\uff1a<\/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-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token comment\">\/\/ https:\/\/github.com\/chenmingyong0423\/blog\/blob\/master\/tutorial-code\/go\/errors\/as\/main.go<\/span>\r\npackage main\r\n\r\n<span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">(<\/span>\r\n <span class=\"token string\">\"errors\"<\/span>\r\n <span class=\"token string\">\"fmt\"<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\n<span class=\"token keyword\">type<\/span> UserNotError struct {\r\n Name string\r\n}\r\n\r\nfunc <span class=\"token punctuation\">(<\/span>e <span class=\"token operator\">*<\/span>UserNotError<span class=\"token punctuation\">)<\/span> Error<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> string {\r\n <span class=\"token keyword\">return<\/span> fmt<span class=\"token punctuation\">.<\/span>Sprintf<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"user not found: name=%s\"<\/span><span class=\"token punctuation\">,<\/span> e<span class=\"token punctuation\">.<\/span>Name<span class=\"token punctuation\">)<\/span>\r\n}\r\n\r\nfunc main<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> {\r\n var err <span class=\"token operator\">=<\/span> <span class=\"token operator\">&amp;<\/span>UserNotError{Name: <span class=\"token string\">\"\u9648\u660e\u52c7\"<\/span>}\r\n var errUserNotFound <span class=\"token operator\">=<\/span> <span class=\"token operator\">&amp;<\/span>UserNotError{}\r\n <span class=\"token keyword\">if<\/span> <span class=\"token keyword\">errors<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">As<\/span><span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>errUserNotFound<span class=\"token punctuation\">)<\/span> {\r\n  fmt<span class=\"token punctuation\">.<\/span>Println<span class=\"token punctuation\">(<\/span>errUserNotFound<span class=\"token punctuation\">.<\/span>Name<span class=\"token punctuation\">)<\/span> <span class=\"token comment\">\/\/ \u9648\u660e\u52c7<\/span>\r\n } <span class=\"token keyword\">else<\/span> {\r\n  fmt<span class=\"token punctuation\">.<\/span>Println<span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">)<\/span>\r\n }\r\n}<\/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<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u793a\u4f8b\u4e2d\uff0c\u9996\u5148\u81ea\u5b9a\u4e49\u4e00\u4e2a\u9519\u8bef\u7c7b\u578b\u00a0UserNotError\uff0c\u5b9e\u73b0\u4e86\u00a0error\u00a0\u63a5\u53e3\u3002\u63a5\u7740\u5728\u00a0main\u00a0\u51fd\u6570\u91cc\uff0c\u5b9a\u4e49\u4e00\u4e2a\u7c7b\u578b\u4e3a\u00a0UserNotError\u00a0\u7684\u9519\u8bef\u5b9e\u4f8b\u00a0err\uff0c\u7136\u540e\u5c1d\u8bd5\u4f7f\u7528\u00a0errors.As\u00a0\u51fd\u6570\u5c06\u5176\u7c7b\u578b\u65ad\u8a00\u4e3a\u00a0UserNotError\u00a0\u7c7b\u578b\uff0c\u5982\u679c\u65ad\u8a00\u6210\u529f\uff0c\u5219\u6253\u5370\u00a0errUserNotFound\u00a0\u7684\u00a0Name\u00a0\u5b57\u6bb5\uff08\u5373\u00a0\u9648\u660e\u52c7\uff09\uff1b\u5426\u5219\u6253\u5370\u00a0err\u3002<\/p>\n<h3>\u5305\u88c5\u9519\u8bef\uff1aJoin \u51fd\u6570<\/h3>\n<p>errors.Join\u00a0\u662f\u00a0Go 1.20\u00a0\u7248\u672c\u65b0\u589e\u7684\u4e00\u4e2a\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u7528\u4e8e\u5305\u88c5\uff08\u5408\u5e76\uff09\u7ed9\u5b9a\u7684\u00a0errs\uff08\u9519\u8bef\u96c6\uff09 \u5e76\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u9519\u8bef\u5bf9\u8c61\u3002\u5f53\u00a0errs\u00a0\u4e3a\u00a0nil\u00a0\u65f6\uff0cerrors.Join\u00a0\u51fd\u6570\u8fd4\u56de\u00a0nil\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\u00a0errors.Join\u00a0\u5728\u5305\u88c5\u00a0error\u00a0\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4f1a\u5ffd\u7565\u00a0nil error\u3002<\/p>\n<p>errors.Join\u00a0\u51fd\u6570\u7684\u7b7e\u540d\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-sql\" tabindex=\"0\"><code class=\"language-sql\">func <span class=\"token keyword\">Join<\/span><span class=\"token punctuation\">(<\/span>errs <span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span>error<span class=\"token punctuation\">)<\/span> error<\/code><\/pre>\n<ul id=\"code_id_7\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul data-id=\"u738a58b-KGKW4QB5\">\n<li data-id=\"ld70c578-uliv1ME4\">\u53c2\u6570\uff1aerrs\u00a0\u4e3a\u6240\u7ed9\u5b9a\u7684\u9519\u8bef\u96c6\u3002<\/li>\n<li data-id=\"ld70c578-NYCPE8ZA\">\u8fd4\u56de\u503c\uff1a\u8fd4\u56de\u4e00\u4e2a\u00a0error\u00a0\u63a5\u53e3\u7c7b\u578b\u7684\u5bf9\u8c61\uff0c\u5176\u503c\u4e3a\u5305\u88c5\u540e\u7684\u65b0\u00a0error\u3002<\/li>\n<\/ul>\n<p>\u4e0b\u9762\u662f\u00a0Join\u00a0\u51fd\u6570\u7684\u4ee3\u7801\u4f7f\u7528\u793a\u4f8b\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-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token comment\">\/\/ https:\/\/github.com\/chenmingyong0423\/blog\/blob\/master\/tutorial-code\/go\/errors\/join\/main.go<\/span>\r\npackage main\r\n\r\n<span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">(<\/span>\r\n <span class=\"token string\">\"errors\"<\/span>\r\n <span class=\"token string\">\"fmt\"<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\nfunc main<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> {\r\n err1 :<span class=\"token operator\">=<\/span> <span class=\"token keyword\">errors<\/span><span class=\"token punctuation\">.<\/span>New<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"error 1\"<\/span><span class=\"token punctuation\">)<\/span>\r\n err2 :<span class=\"token operator\">=<\/span> <span class=\"token keyword\">errors<\/span><span class=\"token punctuation\">.<\/span>New<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"error 2\"<\/span><span class=\"token punctuation\">)<\/span>\r\n err :<span class=\"token operator\">=<\/span> <span class=\"token keyword\">errors<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">Join<\/span><span class=\"token punctuation\">(<\/span>err1<span class=\"token punctuation\">,<\/span> err2<span class=\"token punctuation\">)<\/span>\r\n fmt<span class=\"token punctuation\">.<\/span>Println<span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">)<\/span>\r\n fmt<span class=\"token punctuation\">.<\/span>Println<span class=\"token punctuation\">(<\/span><span class=\"token keyword\">errors<\/span><span class=\"token punctuation\">.<\/span><span class=\"token operator\">Is<\/span><span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">,<\/span> err1<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\">\/\/ true<\/span>\r\n fmt<span class=\"token punctuation\">.<\/span>Println<span class=\"token punctuation\">(<\/span><span class=\"token keyword\">errors<\/span><span class=\"token punctuation\">.<\/span><span class=\"token operator\">Is<\/span><span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">,<\/span> err2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\">\/\/ true<\/span>\r\n}<\/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<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u7a0b\u5e8f\u7684\u8fd0\u884c\u7ed3\u679c\u4e3a\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-sql\" tabindex=\"0\"><code class=\"language-sql\">error <span class=\"token number\">1<\/span>\r\nerror <span class=\"token number\">2<\/span>\r\n<span class=\"token boolean\">true<\/span>\r\n<span class=\"token boolean\">true<\/span><\/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<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u793a\u4f8b\u4e2d\uff0c\u9996\u5148\u5b9a\u4e49\u4e86\u4e24\u4e2a\u4e0d\u540c\u7684\u00a0error\u00a0\u9519\u8bef\u5bf9\u8c61\uff1aerr1\u00a0\u548c\u00a0err2\u3002\u63a5\u7740\u901a\u8fc7\u00a0errors.Join\u00a0\u51fd\u6570\u5305\u88c5\uff08\u5408\u5e76\uff09err1\u00a0\u548c\u00a0err2\u00a0\u9519\u8bef\uff0c\u5f97\u5230\u4e00\u4e2a\u65b0\u7684\u9519\u8bef\u5bf9\u8c61\u00a0err\u3002\u7136\u540e\u8f93\u51fa\u9519\u8bef\u4fe1\u606f\uff0c\u53ea\u8981\u00a0errors.Join\u00a0\u51fd\u6570\u6b63\u786e\u5305\u88c5\u4e86\u00a0err1\u00a0\u548c\u00a0err2\uff0c\u8fd9\u4e24\u4e2a\u9519\u8bef\u7684\u4fe1\u606f\u5c06\u4f1a\u88ab\u8f93\u51fa\u3002\u6700\u540e\u901a\u8fc7\u00a0errors.Is\u00a0\u51fd\u6570\u68c0\u67e5\u9519\u8bef\u7684\u5305\u542b\u5173\u7cfb\uff0c\u7a0b\u5e8f\u8fd0\u884c\u7ed3\u679c\u4e0e\u9884\u671f\u7ed3\u679c\u4e00\u6837\uff0c\u8f93\u51fa\u7684\u7ed3\u679c\u90fd\u662f\u00a0true\u3002<\/p>\n<h3>\u83b7\u53d6\u539f\u59cb\u9519\u8bef\uff1aUnwrap \u51fd\u6570<\/h3>\n<p>errors.Unwrap\u00a0\u51fd\u6570\u7528\u4e8e\u83b7\u53d6\u4e00\u4e2a\u5305\u88c5\u8fc7\u7684\u00a0error\u00a0\u503c\u7684\u539f\u59cb\u00a0error\uff0c\u5b83\u63a5\u6536\u4e00\u4e2a\u00a0err error\u00a0\u53c2\u6570\u3002<\/p>\n<p>errors.Unwrap\u00a0\u51fd\u6570\u7684\u7b7e\u540d\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_10\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\">func Unwrap<span class=\"token punctuation\">(<\/span>err error<span class=\"token punctuation\">)<\/span> error<\/code><\/pre>\n<ul id=\"code_id_10\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul data-id=\"u738a58b-1KV0k5XX\">\n<li data-id=\"ld70c578-5obvIoKT\">\u53c2\u6570\uff1aerr\u00a0\u4e3a\u6240\u7ed9\u5b9a\u7684\u9519\u8bef\u3002<\/li>\n<li data-id=\"ld70c578-9lHfqXDy\">\u8fd4\u56de\u503c\uff1a\u8fd4\u56de\u4e00\u4e2a\u00a0error\u00a0\u7c7b\u578b\u7684\u5bf9\u8c61\u3002\u5176\u503c\u4e3a\u89e3\u5305\u540e\u7684\u00a0error\u3002<\/li>\n<\/ul>\n<p>\u4e0b\u9762\u662f\u00a0Unwrap\u00a0\u51fd\u6570\u7684\u4ee3\u7801\u4f7f\u7528\u793a\u4f8b\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-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token comment\">\/\/ https:\/\/github.com\/chenmingyong0423\/blog\/blob\/master\/tutorial-code\/go\/errors\/unwrap\/main.go<\/span>\r\npackage main\r\n\r\n<span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">(<\/span>\r\n <span class=\"token string\">\"errors\"<\/span>\r\n <span class=\"token string\">\"fmt\"<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\nvar <span class=\"token punctuation\">(<\/span>\r\n ErrUserNotFound <span class=\"token operator\">=<\/span> <span class=\"token keyword\">errors<\/span><span class=\"token punctuation\">.<\/span>New<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"user not found\"<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token punctuation\">)<\/span>\r\n\r\nfunc main<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> {\r\n err :<span class=\"token operator\">=<\/span> fmt<span class=\"token punctuation\">.<\/span>Errorf<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"%w: name=%s\"<\/span><span class=\"token punctuation\">,<\/span> ErrUserNotFound<span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"\u9648\u660e\u52c7\"<\/span><span class=\"token punctuation\">)<\/span>\r\n fmt<span class=\"token punctuation\">.<\/span>Println<span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">)<\/span>\r\n fmt<span class=\"token punctuation\">.<\/span>Println<span class=\"token punctuation\">(<\/span><span class=\"token keyword\">errors<\/span><span class=\"token punctuation\">.<\/span>Unwrap<span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\r\n}<\/code><\/pre>\n<ul id=\"code_id_11\" 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<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u7a0b\u5e8f\u7684\u8fd0\u884c\u7ed3\u679c\u4e3a\uff1a<\/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-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token keyword\">user<\/span> <span class=\"token operator\">not<\/span> found: name<span class=\"token operator\">=<\/span>\u9648\u660e\u52c7\r\n<span class=\"token keyword\">user<\/span> <span class=\"token operator\">not<\/span> found<\/code><\/pre>\n<ul id=\"code_id_12\" 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<h2>errors \u6807\u51c6\u5e93\u6e90\u7801\u89e3\u6790<\/h2>\n<h3>errorString \u7ed3\u6784\u4f53<\/h3>\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-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token keyword\">type<\/span> errorString struct {\r\n s string\r\n}\r\n\r\nfunc <span class=\"token punctuation\">(<\/span>e <span class=\"token operator\">*<\/span>errorString<span class=\"token punctuation\">)<\/span> Error<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> string {\r\n <span class=\"token keyword\">return<\/span> e<span class=\"token punctuation\">.<\/span>s\r\n}<\/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<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>errorString\u00a0\u7ed3\u6784\u4f53\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u00a0error\u00a0\u5b9e\u73b0\uff0c\u5b83\u53ea\u6709\u4e00\u4e2a\u7c7b\u578b\u4e3a\u00a0string\u00a0\u7684\u00a0s\u00a0\u5b57\u6bb5\uff0c\u7528\u4e8e\u5b58\u50a8\u9519\u8bef\u4fe1\u606f\u3002\u5f53\u8c03\u7528\u00a0Error()\u00a0\u65b9\u6cd5\u65f6\uff0c\u8be5\u65b9\u6cd5\u5c06\u4f1a\u8fd4\u56de\u00a0s\u00a0\u5b57\u6bb5\u7684\u503c\u3002<\/p>\n<h3>New \u51fd\u6570<\/h3>\n<p>New\u00a0\u51fd\u6570\u7528\u4e8e\u751f\u6210\u4e00\u4e2a\u65b0\u7684\u9519\u8bef\u5bf9\u8c61\uff0c\u5176\u8fd4\u56de\u503c\u4e3a\u00a0errorString\u00a0\u7c7b\u578b\u7684\u5b9e\u4f8b\u3002<\/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-sql\" tabindex=\"0\"><code class=\"language-sql\">func New<span class=\"token punctuation\">(<\/span><span class=\"token keyword\">text<\/span> string<span class=\"token punctuation\">)<\/span> error {\r\n    <span class=\"token keyword\">return<\/span> <span class=\"token operator\">&amp;<\/span>errorString{<span class=\"token keyword\">text<\/span>}\r\n}<\/code><\/pre>\n<ul id=\"code_id_14\" 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>Is \u51fd\u6570<\/h3>\n<p>errors.Is\u00a0\u51fd\u6570\u7528\u4e8e\u5224\u65ad\u4e24\u4e2a\u00a0error\u00a0\u662f\u5426\u76f8\u7b49\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-sql\" tabindex=\"0\"><code class=\"language-sql\">func <span class=\"token operator\">Is<\/span><span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">,<\/span> target error<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">bool<\/span> {\r\n    <span class=\"token keyword\">if<\/span> target <span class=\"token operator\">=<\/span><span class=\"token operator\">=<\/span> nil {\r\n        <span class=\"token keyword\">return<\/span> err <span class=\"token operator\">=<\/span><span class=\"token operator\">=<\/span> target\r\n    }\r\n    <span class=\"token comment\">\/\/ \u83b7\u53d6 target \u662f\u5426\u53ef\u6bd4\u8f83\u7684 bool \u503c\uff0ctrue \u8868\u793a\u53ef\u6bd4\u8f83\uff0cfalse \u8868\u793a\u4e0d\u53ef\u6bd4\u8f83<\/span>\r\n    isComparable :<span class=\"token operator\">=<\/span> reflectlite<span class=\"token punctuation\">.<\/span>TypeOf<span class=\"token punctuation\">(<\/span>target<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>Comparable<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token comment\">\/\/ \u8be6\u7ec6\u6bd4\u8f83<\/span>\r\n    <span class=\"token keyword\">return<\/span> <span class=\"token operator\">is<\/span><span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">,<\/span> target<span class=\"token punctuation\">,<\/span> isComparable<span class=\"token punctuation\">)<\/span>\r\n}<\/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<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u6e90\u7801\u5256\u6790\uff1a<\/p>\n<ul data-id=\"u738a58b-9Gq6lcUV\">\n<li data-id=\"ld70c578-m3Yo8yl2\">nil\u00a0\u503c\u68c0\u67e5\uff1a\u5224\u65ad\u00a0target\u00a0\u7684\u503c\u662f\u5426\u4e3a\u00a0nil\uff0c\u5982\u679c\u4e3a\u00a0nil\u00a0\u5219\u76f4\u63a5\u6bd4\u8f83\u00a0err\u00a0\u662f\u5426\u7b49\u4e8e\u00a0target\uff08\u4e5f\u5c31\u662f\u662f\u5426\u7b49\u4e8e\u00a0nil\uff09\uff0c\u6bd4\u8f83\u7ed3\u679c\u4f5c\u4e3a\u00a0Is\u00a0\u51fd\u6570\u7684\u7ed3\u679c\u8fd4\u56de\u3002<\/li>\n<li data-id=\"ld70c578-GPxuD9eY\">\u83b7\u53d6\u53ef\u6bd4\u8f83\u7c7b\u578b\u7684\u7ed3\u679c\uff1a\u4f7f\u7528\u00a0reflectlite.TypeOf(target).Comparable()\u00a0\u68c0\u67e5\u00a0target\u00a0\u7684\u7c7b\u578b\u662f\u5426\u53ef\u4ee5\u6bd4\u8f83\uff0c\u5982\u679c\u5f97\u5230\u7684\u7ed3\u679c\u662f\u00a0true\uff0c\u8868\u793a\u53ef\u6bd4\u8f83\uff0c\u5426\u5219\u8868\u793a\u4e0d\u53ef\u6bd4\u8f83<\/li>\n<li data-id=\"ld70c578-7QJCL2od\">\u8be6\u7ec6\u6bd4\u8f83\uff1a\u5c06\u00a0err\u3001target\u00a0\u4ee5\u53ca\u00a0isComparable\u00a0\u53d8\u91cf\u4f5c\u4e3a\u53c2\u6570\u8c03\u7528\u00a0is\u00a0\u51fd\u6570\u8fdb\u884c\u8be6\u7ec6\u6bd4\u8f83\u3002<\/li>\n<\/ul>\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-sql\" tabindex=\"0\"><code class=\"language-sql\">func <span class=\"token operator\">is<\/span><span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">,<\/span> target error<span class=\"token punctuation\">,<\/span> targetComparable <span class=\"token keyword\">bool<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">bool<\/span> {\r\n    <span class=\"token keyword\">for<\/span> {\r\n        <span class=\"token comment\">\/\/ \u5982\u679c target \u662f\u4e00\u4e2a\u53ef\u6bd4\u8f83\u7684\u7c7b\u578b\uff0c\u76f4\u63a5\u4f7f\u7528 == \u7b26\u53f7\u8fdb\u884c\u6bd4\u8f83\u3002<\/span>\r\n        <span class=\"token keyword\">if<\/span> targetComparable <span class=\"token operator\">&amp;&amp;<\/span> err <span class=\"token operator\">=<\/span><span class=\"token operator\">=<\/span> target {\r\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span>\r\n        }\r\n        <span class=\"token comment\">\/\/ \u5982\u679c err \u5b9e\u73b0\u4e86 Is \u65b9\u6cd5\uff0c\u5219\u8c03\u7528 Is \u65b9\u6cd5\uff0c\u5982\u679c\u8be5\u65b9\u6cd5\u8fd4\u56de true\uff0c\u5219\u76f4\u63a5\u8fd4\u56de true<\/span>\r\n        <span class=\"token keyword\">if<\/span> x<span class=\"token punctuation\">,<\/span> ok :<span class=\"token operator\">=<\/span> err<span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">(<\/span>interface{ <span class=\"token operator\">Is<\/span><span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">bool<\/span> }<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> ok <span class=\"token operator\">&amp;&amp;<\/span> x<span class=\"token punctuation\">.<\/span><span class=\"token operator\">Is<\/span><span class=\"token punctuation\">(<\/span>target<span class=\"token punctuation\">)<\/span> {\r\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span>\r\n        }\r\n        <span class=\"token comment\">\/\/ \u63a5\u53e3\u5b9e\u73b0\u68c0\u67e5<\/span>\r\n        switch x :<span class=\"token operator\">=<\/span> err<span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">type<\/span><span class=\"token punctuation\">)<\/span> {\r\n        <span class=\"token comment\">\/\/ \u5982\u679c err \u5b9e\u73b0\u4e86  Unwrap() error \u65b9\u6cd5<\/span>\r\n        <span class=\"token keyword\">case<\/span> interface{ Unwrap<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> error }:\r\n            <span class=\"token comment\">\/\/ \u8c03\u7528 Unwrap \u65b9\u6cd5\u83b7\u53d6\u65b0\u7684\u9519\u8bef<\/span>\r\n            err <span class=\"token operator\">=<\/span> x<span class=\"token punctuation\">.<\/span>Unwrap<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n            <span class=\"token comment\">\/\/ \u5982\u679c\u65b0\u9519\u8bef\u4e3a nil\uff0c\u8fd4\u56de false<\/span>\r\n            <span class=\"token keyword\">if<\/span> err <span class=\"token operator\">=<\/span><span class=\"token operator\">=<\/span> nil {\r\n                <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span>\r\n            }\r\n        <span class=\"token comment\">\/\/ \u5982\u679c err \u5b9e\u73b0\u4e86 Unwrap() []error \u65b9\u6cd5<\/span>\r\n        <span class=\"token keyword\">case<\/span> interface{ Unwrap<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span>error }:\r\n            <span class=\"token comment\">\/\/ \u904d\u5386\u9519\u8bef\u96c6<\/span>\r\n            <span class=\"token keyword\">for<\/span> _<span class=\"token punctuation\">,<\/span> err :<span class=\"token operator\">=<\/span> range x<span class=\"token punctuation\">.<\/span>Unwrap<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> {\r\n                <span class=\"token comment\">\/\/ \u9012\u5f52\u68c0\u67e5\u65b0\u9519\u8bef\u548c target \u662f\u5426\u76f8\u7b49<\/span>\r\n                <span class=\"token keyword\">if<\/span> <span class=\"token operator\">is<\/span><span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">,<\/span> target<span class=\"token punctuation\">,<\/span> targetComparable<span class=\"token punctuation\">)<\/span> {\r\n                    <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span>\r\n                }\r\n            }\r\n            <span class=\"token comment\">\/\/ \u4e0d\u76f8\u7b49<\/span>\r\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span>\r\n        <span class=\"token keyword\">default<\/span>:\r\n            <span class=\"token comment\">\/\/ \u4e0d\u76f8\u7b49<\/span>\r\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span>\r\n        }\r\n    }\r\n}<\/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<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>\u6e90\u7801\u5256\u6790\uff1a<\/p>\n<ul data-id=\"u738a58b-5SJXYLVu\">\n<li data-id=\"ld70c578-H7lH1rth\">\u5faa\u73af\u5904\u7406 err\uff1a\u5faa\u73af\u662f\u4e3a\u4e86\u5904\u7406\u9519\u8bef\u94fe\uff0c\u53ef\u80fd\u6709\u591a\u4e2a\u5d4c\u5957\u7684\u9519\u8bef\u3002<\/li>\n<li data-id=\"ld70c578-bSZ3PWSz\">\u76f4\u63a5\u6bd4\u8f83\u9519\u8bef\uff1a\u5982\u679c\u00a0targetComparable &amp;&amp; err == target\u00a0\u6210\u7acb\uff0c\u5219\u8fd4\u56de\u00a0true\u3002<\/li>\n<li data-id=\"ld70c578-CoQU1riy\">\u68c0\u67e5\u662f\u5426\u5b9e\u73b0\u4e86\u00a0Is\u00a0\u65b9\u6cd5\uff1a\u901a\u8fc7\u00a0err.(interface{ Is(error) bool })\u00a0\u68c0\u67e5\u00a0err\u00a0\u5bf9\u8c61\u662f\u5426\u5b9e\u73b0\u4e86\u00a0Is(error) bool\u00a0\u65b9\u6cd5\uff0c\u5982\u679c\u662f\uff0c\u8c03\u7528\u8be5\u65b9\u6cd5\uff0c\u5982\u679c\u8fd4\u56de\u00a0true\uff0c\u5219\u00a0is\u00a0\u51fd\u6570\u8fd4\u56de\u00a0true\u3002<\/li>\n<li data-id=\"ld70c578-q1Pq1qIr\">\u63a5\u53e3\u5b9e\u73b0\u68c0\u67e5\uff1a\u901a\u8fc7\u00a0type swtich\u00a0\u7684\u65b9\u5f0f\uff08switch x := err.(type)\uff09\u68c0\u67e5\u00a0err\u00a0\u5bf9\u8c61\u662f\u5426\u5b9e\u73b0\u4e86\u00a0interface{ Unwrap() error }\u00a0\u6216\u00a0interface{ Unwrap() []error }\u00a0\u63a5\u53e3\uff1a<\/li>\n<\/ul>\n<p>\u5982\u679c\u00a0err\u00a0\u5b9e\u73b0\u4e86\u00a0interface{ Unwrap() error }\u00a0\u63a5\u53e3\uff0c\u5219\u8c03\u7528\u00a0Unwrap\u00a0\u83b7\u53d6\u4e0b\u4e00\u4e2a\u9519\u8bef\uff0c\u5982\u679c\u65b0\u9519\u8bef\u4e3a\u00a0nil\uff0c\u8fd4\u56de\u00a0false\uff0c\u5426\u5219\u7ee7\u7eed\u5faa\u73af\u6bd4\u8f83\u65b0\u9519\u8bef\u548c\u00a0target\u00a0\u662f\u5426\u5339\u914d\u3002<\/p>\n<p>\u5982\u679c\u00a0err\u00a0\u5b9e\u73b0\u4e86\u00a0interface{ Unwrap() []error }\u00a0\u63a5\u53e3\uff0c\u8c03\u7528\u00a0x.Unwrap()\u00a0\u65b9\u6cd5\u83b7\u53d6\u5230\u65b0\u7684\u9519\u8bef\u96c6\uff0c\u5bf9\u96c6\u5408\u91cc\u7684\u6bcf\u4e2a\u9519\u8bef\u9012\u5f52\u8c03\u7528\u00a0is\u00a0\u51fd\u6570\u3002\u5982\u679c\u4efb\u610f\u4e00\u4e2a\u9519\u8bef\u5339\u914d\u00a0target\uff0c\u5219\u8fd4\u56de\u00a0true\u3002<\/p>\n<ul data-id=\"u738a58b-nLFmrnud\">\n<li data-id=\"ld70c578-XRezmBgs\">\u5982\u679c\u00a0err\u00a0\u65e2\u4e0d\u5b9e\u73b0\u00a0Is\u00a0\u65b9\u6cd5\uff0c\u4e5f\u4e0d\u5b9e\u73b0\u00a0Unwrap\u00a0\u65b9\u6cd5\uff0c\u5219\u8fd4\u56de\u00a0false\u3002<\/li>\n<\/ul>\n<p>\u603b\u7684\u6765\u8bf4\uff0cIs\u00a0\u51fd\u6570\u5728\u68c0\u67e5\u00a0err\u00a0\u662f\u5426\u7b49\u4e8e\u6216\u5305\u542b\u00a0target\u00a0\u65f6\u91c7\u7528\u4e86\u4e24\u79cd\u65b9\u6cd5\uff1a\u76f4\u63a5\u4f7f\u7528\u00a0==\u00a0\u7b26\u53f7\u6bd4\u8f83\u00a0\u548c\u00a0\u901a\u8fc7\u8c03\u7528\u00a0err\u00a0\u5bf9\u8c61\u5b9e\u73b0\u7684\u00a0Is\u00a0\u65b9\u6cd5\u8fdb\u884c\u6bd4\u8f83\u3002\u6b64\u5916\uff0cIs\u00a0\u51fd\u6570\u8fd8\u8003\u8651\u4e86\u9519\u8bef\u7684\u5305\u88c5\u60c5\u51b5\uff0c\u901a\u8fc7\u89e3\u5305\u00a0err\u00a0\u6765\u83b7\u53d6\u65b0\u7684\u9519\u8bef\uff0c\u8fdb\u800c\u8fdb\u884c\u65b0\u7684\u6bd4\u8f83\u3002<\/p>\n<h3>As \u51fd\u6570<\/h3>\n<p>errors.As\u00a0\u51fd\u6570\u7528\u4e8e\u68c0\u67e5\u4e00\u4e2a\u9519\u8bef\u662f\u5426\u53ef\u4ee5\u88ab\u65ad\u8a00\u4e3a\u7279\u5b9a\u7684\u9519\u8bef\u7c7b\u578b\uff0c\u65ad\u8a00\u6210\u529f\u5219\u5c06\u9519\u8bef\u7684\u503c\u8d4b\u7ed9\u7279\u5b9a\u7684\u9519\u8bef\u53d8\u91cf\u3002<\/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-sql\" tabindex=\"0\"><code class=\"language-sql\">func <span class=\"token keyword\">As<\/span><span class=\"token punctuation\">(<\/span>err error<span class=\"token punctuation\">,<\/span> target <span class=\"token keyword\">any<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">bool<\/span> {\r\n    <span class=\"token comment\">\/\/ \u5982\u679c err \u4e3a nil\uff0c\u76f4\u63a5\u8fd4\u56de false<\/span>\r\n    <span class=\"token keyword\">if<\/span> err <span class=\"token operator\">=<\/span><span class=\"token operator\">=<\/span> nil {\r\n        <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span>\r\n    }\r\n    <span class=\"token comment\">\/\/ \u5982\u679c target \u4e3a nil\uff0c\u89e6\u53d1 panic<\/span>\r\n    <span class=\"token keyword\">if<\/span> target <span class=\"token operator\">=<\/span><span class=\"token operator\">=<\/span> nil {\r\n        panic<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"errors: target cannot be nil\"<\/span><span class=\"token punctuation\">)<\/span>\r\n    }\r\n    <span class=\"token comment\">\/\/ \u901a\u8fc7\u53cd\u5c04\u83b7\u53d6\u5230 target \u7684\u503c\u5bf9\u8c61<\/span>\r\n    val :<span class=\"token operator\">=<\/span> reflectlite<span class=\"token punctuation\">.<\/span>ValueOf<span class=\"token punctuation\">(<\/span>target<span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token comment\">\/\/ \u83b7\u53d6 target \u7684\u7c7b\u578b<\/span>\r\n    typ :<span class=\"token operator\">=<\/span> val<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">Type<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token comment\">\/\/ \u5982\u679c target \u7684\u7c7b\u578b\u4e0d\u662f\u6307\u9488\u6216\u662f\u7a7a\u6307\u9488\uff0c\u89e6\u53d1 panic<\/span>\r\n    <span class=\"token keyword\">if<\/span> typ<span class=\"token punctuation\">.<\/span>Kind<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!=<\/span> reflectlite<span class=\"token punctuation\">.<\/span>Ptr <span class=\"token operator\">||<\/span> val<span class=\"token punctuation\">.<\/span>IsNil<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> {\r\n        panic<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"errors: target must be a non-nil pointer\"<\/span><span class=\"token punctuation\">)<\/span>\r\n    }\r\n    <span class=\"token comment\">\/\/ \u83b7\u53d6 target \u7684\u7c7b\u578b\u503c<\/span>\r\n    targetType :<span class=\"token operator\">=<\/span> typ<span class=\"token punctuation\">.<\/span>Elem<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token comment\">\/\/ \u5982\u679c target \u7684\u7c7b\u578b\u4e0d\u662f\u63a5\u53e3\u7c7b\u578b\u6216\u8005\u6ca1\u6709\u5b9e\u73b0 error \u63a5\u53e3\uff0c\u89e6\u53d1 panic<\/span>\r\n    <span class=\"token keyword\">if<\/span> targetType<span class=\"token punctuation\">.<\/span>Kind<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!=<\/span> reflectlite<span class=\"token punctuation\">.<\/span>Interface <span class=\"token operator\">&amp;&amp;<\/span> <span class=\"token operator\">!<\/span>targetType<span class=\"token punctuation\">.<\/span>Implements<span class=\"token punctuation\">(<\/span>errorType<span class=\"token punctuation\">)<\/span> {\r\n        panic<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"errors: *target must be interface or implement error\"<\/span><span class=\"token punctuation\">)<\/span>\r\n    }\r\n    <span class=\"token comment\">\/\/ \u8be6\u7ec6\u6bd4\u8f83<\/span>\r\n    <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">as<\/span><span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">,<\/span> target<span class=\"token punctuation\">,<\/span> val<span class=\"token punctuation\">,<\/span> targetType<span class=\"token punctuation\">)<\/span>\r\n}<\/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<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u6e90\u7801\u5256\u6790\uff1a<\/p>\n<ul data-id=\"u738a58b-ktlOQqkP\">\n<li data-id=\"ld70c578-IAjpBThs\">nil\u00a0\u503c\u68c0\u67e5\uff1a\u5982\u679c\u00a0err\u00a0\u7684\u503c\u4e3a\u00a0nil\uff0c\u76f4\u63a5\u8fd4\u56de\u00a0false\uff1b\u5982\u679c\u00a0target\u00a0\u7684\u503c\u4e3a\u00a0nil\uff0c\u5219\u89e6\u53d1\u00a0panic\u3002<\/li>\n<li data-id=\"ld70c578-jOyuJPTO\">\u6307\u9488\u7c7b\u578b\u68c0\u67e5\uff1a\u4f7f\u7528\u00a0reflectlite.ValueOf(target)\u00a0\u83b7\u53d6\u00a0target\u00a0\u7684\u53cd\u5c04\u503c\u00a0val\u00a0\u548c\u7c7b\u578b\u00a0typ\u3002\u68c0\u67e5\u00a0target\u00a0\u662f\u5426\u662f\u4e00\u4e2a\u975e\u7a7a\u6307\u9488\u3002\u5982\u679c\u00a0target\u00a0\u7684\u7c7b\u578b\u4e0d\u662f\u6307\u9488\u7c7b\u578b\u6216\u662f\u7a7a\u6307\u9488\uff0c\u89e6\u53d1\u00a0panic\u3002<\/li>\n<li data-id=\"ld70c578-Jq3uM56f\">\u63a5\u53e3\u68c0\u67e5\uff1a\u901a\u8fc7\u00a0targetType := typ.Elem()\u00a0\u83b7\u53d6\u6307\u9488\u6307\u5411\u5143\u7d20\u7684\u7c7b\u578b\uff0c\u5224\u65ad\u5982\u679c\u8be5\u7c7b\u578b\u4e0d\u662f\u63a5\u53e3\u7c7b\u578b\u6216\u8005\u6ca1\u6709\u5b9e\u73b0\u00a0error\u00a0\u63a5\u53e3\uff0c\u5219\u89e6\u53d1\u00a0panic\u3002<\/li>\n<li data-id=\"ld70c578-Js7wXGrY\">\u8be6\u7ec6\u6bd4\u8f83\uff1a\u5c06\u00a0err\u3001target\u00a0\u548c\u00a0val\u00a0\u4ee5\u53ca\u00a0targetType\u00a0\u53d8\u91cf\u4f5c\u4e3a\u53c2\u6570\u8c03\u7528\u00a0as\u00a0\u51fd\u6570\u8fdb\u884c\u8be6\u7ec6\u6bd4\u8f83\u3002<\/li>\n<\/ul>\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-sql\" tabindex=\"0\"><code class=\"language-sql\">func <span class=\"token keyword\">as<\/span><span class=\"token punctuation\">(<\/span>err error<span class=\"token punctuation\">,<\/span> target <span class=\"token keyword\">any<\/span><span class=\"token punctuation\">,<\/span> targetVal reflectlite<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">Value<\/span><span class=\"token punctuation\">,<\/span> targetType reflectlite<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">Type<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">bool<\/span> {\r\n    <span class=\"token keyword\">for<\/span> {\r\n        <span class=\"token comment\">\/\/ \u5982\u679c err \u7684\u503c\u53ef\u4ee5\u88ab\u8d4b\u503c\u7ed9 target \u6307\u5411\u7684\u53d8\u91cf<\/span>\r\n        <span class=\"token keyword\">if<\/span> reflectlite<span class=\"token punctuation\">.<\/span>TypeOf<span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>AssignableTo<span class=\"token punctuation\">(<\/span>targetType<span class=\"token punctuation\">)<\/span> {\r\n            <span class=\"token comment\">\/\/ \u5c06 err \u7684\u503c\u8d4b\u503c\u7ed9 target \u6307\u5411\u7684\u53d8\u91cf<\/span>\r\n            targetVal<span class=\"token punctuation\">.<\/span>Elem<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">Set<\/span><span class=\"token punctuation\">(<\/span>reflectlite<span class=\"token punctuation\">.<\/span>ValueOf<span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\r\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span>\r\n        }\r\n        <span class=\"token comment\">\/\/ \u5982\u679c err \u5b9e\u73b0 As \u65b9\u6cd5\uff0c\u5219\u8c03\u7528\u8fd9\u4e2a\u65b9\u6cd5\uff0c\u5982\u679c\u8be5\u65b9\u6cd5\u8fd4\u56de true\uff0c\u5219 as \u51fd\u6570\u8fd4\u56de true<\/span>\r\n        <span class=\"token keyword\">if<\/span> x<span class=\"token punctuation\">,<\/span> ok :<span class=\"token operator\">=<\/span> err<span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">(<\/span>interface{ <span class=\"token keyword\">As<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">any<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">bool<\/span> }<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> ok <span class=\"token operator\">&amp;&amp;<\/span> x<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">As<\/span><span class=\"token punctuation\">(<\/span>target<span class=\"token punctuation\">)<\/span> {\r\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span>\r\n        }\r\n        switch x :<span class=\"token operator\">=<\/span> err<span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">type<\/span><span class=\"token punctuation\">)<\/span> {\r\n        <span class=\"token comment\">\/\/ \u5982\u679c err \u5b9e\u73b0\u4e86  Unwrap() error \u65b9\u6cd5<\/span>\r\n        <span class=\"token keyword\">case<\/span> interface{ Unwrap<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> error }:\r\n            <span class=\"token comment\">\/\/ \u8c03\u7528 Unwrap \u65b9\u6cd5\u83b7\u53d6\u65b0\u7684\u9519\u8bef<\/span>\r\n            err <span class=\"token operator\">=<\/span> x<span class=\"token punctuation\">.<\/span>Unwrap<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n            <span class=\"token comment\">\/\/ \u5982\u679c\u65b0\u9519\u8bef\u4e3a nil\uff0c\u8fd4\u56de false<\/span>\r\n            <span class=\"token keyword\">if<\/span> err <span class=\"token operator\">=<\/span><span class=\"token operator\">=<\/span> nil {\r\n                <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span>\r\n            }\r\n        <span class=\"token comment\">\/\/ \u5982\u679c err \u5b9e\u73b0\u4e86  Unwrap() []error \u65b9\u6cd5<\/span>\r\n        <span class=\"token keyword\">case<\/span> interface{ Unwrap<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span>error }:\r\n            <span class=\"token comment\">\/\/ \u904d\u5386\u9519\u8bef\u96c6<\/span>\r\n            <span class=\"token keyword\">for<\/span> _<span class=\"token punctuation\">,<\/span> err :<span class=\"token operator\">=<\/span> range x<span class=\"token punctuation\">.<\/span>Unwrap<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> {\r\n                <span class=\"token keyword\">if<\/span> err <span class=\"token operator\">=<\/span><span class=\"token operator\">=<\/span> nil {\r\n                    <span class=\"token keyword\">continue<\/span>\r\n                }\r\n                <span class=\"token comment\">\/\/ \u9012\u5f52\u68c0\u67e5\u65b0\u9519\u8bef\u662f\u5426\u53ef\u4ee5\u88ab\u65ad\u8a00\u4e3a target<\/span>\r\n                <span class=\"token keyword\">if<\/span> <span class=\"token keyword\">as<\/span><span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">,<\/span> target<span class=\"token punctuation\">,<\/span> targetVal<span class=\"token punctuation\">,<\/span> targetType<span class=\"token punctuation\">)<\/span> {\r\n                    <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span>\r\n                }\r\n            }\r\n            <span class=\"token comment\">\/\/ \u65ad\u8a00\u5931\u8d25<\/span>\r\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span>\r\n        <span class=\"token keyword\">default<\/span>:\r\n            <span class=\"token comment\">\/\/ \u65ad\u8a00\u5931\u8d25<\/span>\r\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span>\r\n        }\r\n    }\r\n}<\/code><\/pre>\n<ul id=\"code_id_18\" 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<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u6e90\u7801\u5256\u6790\uff1a<\/p>\n<ul data-id=\"u738a58b-HkSSKAiV\">\n<li data-id=\"ld70c578-trVmjLKX\">\u5faa\u73af\u5904\u7406 err\uff1a\u5faa\u73af\u662f\u4e3a\u4e86\u5904\u7406\u9519\u8bef\u94fe\uff0c\u53ef\u80fd\u6709\u591a\u4e2a\u5d4c\u5957\u7684\u9519\u8bef\u3002<\/li>\n<li data-id=\"ld70c578-8GWnN5df\">\u76f4\u63a5\u5206\u914d\u68c0\u67e5\uff1a\u4f7f\u7528\u00a0reflectlite.TypeOf(err).AssignableTo(targetType)\u00a0\u5224\u65ad\u00a0err\u00a0\u7684\u503c\u662f\u5426\u53ef\u4ee5\u5206\u914d\u7ed9\u00a0targetType\u00a0\u7c7b\u578b\uff0c\u5982\u679c\u53ef\u4ee5\uff0c\u5c06\u00a0err\u00a0\u7684\u503c\u8d4b\u503c\u7ed9\u00a0target\u00a0\u6307\u5411\u7684\u53d8\u91cf\uff0c\u7136\u540e\u8fd4\u56de\u00a0true\u3002<\/li>\n<li data-id=\"ld70c578-98EwC5Ix\">\u68c0\u67e5\u662f\u5426\u5b9e\u73b0\u4e86\u00a0As\u00a0\u65b9\u6cd5\uff1a\u4f7f\u7528\u00a0err.(interface{ As(any) bool })\u00a0\u68c0\u67e5\u00a0err\u00a0\u662f\u5426\u5b9e\u73b0\u4e86\u00a0As\u00a0\u65b9\u6cd5\uff0c\u5982\u679c\u5b9e\u73b0\uff0c\u8c03\u7528\u8be5\u65b9\u6cd5\uff0c\u5982\u679c\u8be5\u65b9\u6cd5\u8fd4\u56de\u00a0true\uff0c\u5219\u00a0as\u00a0\u51fd\u6570\u8fd4\u56de\u00a0true\u3002<\/li>\n<li data-id=\"ld70c578-CkhSylOJ\">\u63a5\u53e3\u5b9e\u73b0\u68c0\u67e5\uff1a\u901a\u8fc7\u00a0type swtich\u00a0\u7684\u65b9\u5f0f\uff08switch x := err.(type)\uff09\u68c0\u67e5\u00a0err\u00a0\u5bf9\u8c61\u662f\u5426\u5b9e\u73b0\u4e86\u00a0interface{ Unwrap() error }\u00a0\u6216\u00a0interface{ Unwrap() []error }\u00a0\u63a5\u53e3\uff1a<\/li>\n<\/ul>\n<p>\u5982\u679c\u00a0err\u00a0\u5b9e\u73b0\u4e86\u00a0interface{ Unwrap() error }\uff0c\u5219\u8c03\u7528\u00a0Unwrap\u00a0\u83b7\u53d6\u4e0b\u4e00\u4e2a\u9519\u8bef\uff0c\u5982\u679c\u65b0\u9519\u8bef\u4e3a\u00a0nil, \u8fd4\u56de\u00a0false\uff0c\u5426\u5219\u5e76\u7ee7\u7eed\u5faa\u73af\u5904\u7406\u8fd9\u4e2a\u65b0\u7684\u9519\u8bef\u3002<\/p>\n<p>\u5982\u679c\u00a0err\u00a0\u5b9e\u73b0\u4e86\u00a0interface{ Unwrap() []error }\u00a0\u63a5\u53e3\uff0c\u8c03\u7528\u00a0x.Unwrap()\u00a0\u65b9\u6cd5\u83b7\u53d6\u5230\u65b0\u7684\u9519\u8bef\u96c6\uff0c\u5bf9\u96c6\u5408\u91cc\u7684\u6bcf\u4e2a\u9519\u8bef\u9012\u5f52\u8c03\u7528\u00a0as\u00a0\u51fd\u6570\u3002\u5982\u679c\u4efb\u610f\u4e00\u4e2a\u9519\u8bef\u53ef\u4ee5\u88ab\u65ad\u8a00\u4e3a\u00a0target\uff0c\u5219\u8fd4\u56de\u00a0true\u3002<\/p>\n<ul data-id=\"u738a58b-ki7f9GEM\">\n<li data-id=\"ld70c578-bhgBChSh\">\u5982\u679c\u00a0err\u00a0\u65e2\u4e0d\u5b9e\u73b0\u00a0As\u00a0\u65b9\u6cd5\uff0c\u4e5f\u4e0d\u5b9e\u73b0\u00a0Unwrap\u00a0\u65b9\u6cd5\uff0c\u5219\u8fd4\u56de\u00a0false\u3002<\/li>\n<\/ul>\n<p>\u603b\u7684\u6765\u8bf4\uff0cAs\u00a0\u51fd\u6570\u5728\u5224\u65ad\u00a0err\u00a0\u662f\u5426\u53ef\u4ee5\u88ab\u65ad\u8a00\u4e3a\u76ee\u6807\u7c7b\u578b\u00a0target\u00a0\u65f6\uff0c\u91c7\u7528\u4e86\u4e24\u79cd\u65b9\u6cd5\uff1a\u5229\u7528\u53cd\u5c04\u6765\u68c0\u67e5\u7c7b\u578b\u7684\u53ef\u8d4b\u503c\u6027\u00a0\u548c\u00a0\u901a\u8fc7\u8c03\u7528\u00a0err\u00a0\u5bf9\u8c61\u5b9e\u73b0\u7684\u00a0As\u00a0\u65b9\u6cd5\u8fdb\u884c\u7c7b\u578b\u65ad\u8a00\u3002\u6b64\u5916\uff0cAs\u00a0\u51fd\u6570\u4e5f\u7279\u522b\u5904\u7406\u4e86\u00a0err\u00a0\u548c\u00a0target\u00a0\u4e3a\u00a0nil\u00a0\u7684\u60c5\u51b5\uff0c\u5e76\u505a\u51fa\u76f8\u5e94\u5904\u7406\u3002\u5728\u5904\u7406\u5c01\u88c5\u7684\u9519\u8bef\u65f6\uff0cAs\u00a0\u51fd\u6570\u901a\u8fc7\u89e3\u5305\u00a0err\uff0c\u63d0\u53d6\u5185\u90e8\u9519\u8bef\uff0c\u4ee5\u8fdb\u884c\u65b0\u7684\u65ad\u8a00\u64cd\u4f5c\u3002<\/p>\n<h3>joinError \u7ed3\u6784\u4f53<\/h3>\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-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token keyword\">type<\/span> joinError struct {\r\n    errs <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span>error\r\n}\r\n\r\nfunc <span class=\"token punctuation\">(<\/span>e <span class=\"token operator\">*<\/span>joinError<span class=\"token punctuation\">)<\/span> Error<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> string {\r\n    <span class=\"token comment\">\/\/ \u5982\u679c\u9519\u8bef\u96c6\u53ea\u6709\u4e00\u4e2a\u9519\u8bef\uff0c\u76f4\u63a5\u8fd4\u56de\u8be5\u9519\u8bef\u7684\u4fe1\u606f<\/span>\r\n    <span class=\"token keyword\">if<\/span> <span class=\"token function\">len<\/span><span class=\"token punctuation\">(<\/span>e<span class=\"token punctuation\">.<\/span>errs<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">=<\/span> <span class=\"token number\">1<\/span> {\r\n        <span class=\"token keyword\">return<\/span> e<span class=\"token punctuation\">.<\/span>errs<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>Error<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n    }\r\n    <span class=\"token comment\">\/\/ \u7ec4\u5408\u6240\u6709\u7684\u9519\u8bef\u4fe1\u606f\uff0c\u7528\u6362\u884c\u7b26 \\n \u5206\u9694\u3002<\/span>\r\n    b :<span class=\"token operator\">=<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span>byte<span class=\"token punctuation\">(<\/span>e<span class=\"token punctuation\">.<\/span>errs<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>Error<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token keyword\">for<\/span> _<span class=\"token punctuation\">,<\/span> err :<span class=\"token operator\">=<\/span> range e<span class=\"token punctuation\">.<\/span>errs<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span>:<span class=\"token punctuation\">]<\/span> {\r\n        b <span class=\"token operator\">=<\/span> append<span class=\"token punctuation\">(<\/span>b<span class=\"token punctuation\">,<\/span> <span class=\"token string\">'\\n'<\/span><span class=\"token punctuation\">)<\/span>\r\n        b <span class=\"token operator\">=<\/span> append<span class=\"token punctuation\">(<\/span>b<span class=\"token punctuation\">,<\/span> err<span class=\"token punctuation\">.<\/span>Error<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 punctuation\">)<\/span>\r\n    }\r\n    <span class=\"token keyword\">return<\/span> unsafe<span class=\"token punctuation\">.<\/span>String<span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>b<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">len<\/span><span class=\"token punctuation\">(<\/span>b<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\r\n}\r\n\r\nfunc <span class=\"token punctuation\">(<\/span>e <span class=\"token operator\">*<\/span>joinError<span class=\"token punctuation\">)<\/span> Unwrap<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span>error {\r\n <span class=\"token keyword\">return<\/span> e<span class=\"token punctuation\">.<\/span>errs\r\n}<\/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<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>joinError\u00a0\u7ed3\u6784\u4f53\u7528\u4e8e\u5305\u88c5\uff08\u5408\u5e76\uff09\u591a\u4e2a\u00a0error\u00a0\u5b9e\u4f8b\u3002\u5b83\u5305\u542b\u4e00\u4e2a\u7c7b\u578b\u4e3a\u00a0[]error\u00a0\u7684\u00a0errs\u00a0\u5b57\u6bb5\uff0c\u7528\u4e8e\u5b58\u50a8\u591a\u4e2a\u00a0error\u3002<\/p>\n<ul data-id=\"u738a58b-NWMTrVOo\">\n<li data-id=\"ld70c578-D6RD0fhq\">joinError\u00a0\u5b9e\u73b0\u4e86\u00a0error\u00a0\u63a5\u53e3\u7684\u00a0Error\u00a0\u65b9\u6cd5\uff0c\u7528\u4e8e\u8fd4\u56de\u6240\u6709\u9519\u8bef\u7684\u7ec4\u5408\u5b57\u7b26\u4e32\u3002<\/li>\n<\/ul>\n<p>\u5982\u679c\u00a0errs\u00a0\u5207\u7247\u4e2d\u53ea\u6709\u4e00\u4e2a\u9519\u8bef\uff0c\u76f4\u63a5\u8fd4\u56de\u8be5\u9519\u8bef\u7684\u5b57\u7b26\u4e32\u8868\u793a\u3002<\/p>\n<p>\u5982\u679c\u00a0errs\u00a0\u5207\u7247\u4e2d\u6709\u591a\u4e2a\u9519\u8bef\uff0c\u5219\u5c06\u5b83\u4eec\u7684\u5b57\u7b26\u4e32\u8868\u793a\u8fde\u63a5\u5728\u4e00\u8d77\uff0c\u7528\u6362\u884c\u7b26\u00a0\\n\u00a0\u5206\u9694\u3002<\/p>\n<ul data-id=\"u738a58b-NB6bjGlx\">\n<li data-id=\"ld70c578-tcI3w23W\">joinError\u00a0\u5b9e\u73b0\u4e86\u00a0Unwrap\u00a0\u65b9\u6cd5\uff0c\u7528\u4e8e\u89e3\u5305\u6240\u6709\u5408\u5e76\u7684\u9519\u8bef\u3002<\/li>\n<\/ul>\n<h3>Join \u51fd\u6570<\/h3>\n<p>errors.Join\u00a0\u51fd\u6570\u7528\u4e8e\u5305\u88c5\uff08\u5408\u5e76\uff09\u7ed9\u5b9a\u7684\u00a0errs\uff08\u9519\u8bef\u96c6\uff09 \u5e76\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u9519\u8bef\u5bf9\u8c61\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-sql\" tabindex=\"0\"><code class=\"language-sql\">func <span class=\"token keyword\">Join<\/span><span class=\"token punctuation\">(<\/span>errs <span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span>error<span class=\"token punctuation\">)<\/span> error {\r\n    <span class=\"token comment\">\/\/ \u5b9a\u4e49\u9519\u8bef\u6570\u91cf\u7684\u53d8\u91cf<\/span>\r\n    n :<span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span>\r\n        <span class=\"token comment\">\/\/ \u7edf\u8ba1\u9519\u8bef\u7684\u6570\u91cf<\/span>\r\n    <span class=\"token keyword\">for<\/span> _<span class=\"token punctuation\">,<\/span> err :<span class=\"token operator\">=<\/span> range errs {\r\n            <span class=\"token comment\">\/\/ \u5982\u679c\u9519\u8bef\u4e0d\u4e3a nil\uff0c\u6570\u91cf + 1<\/span>\r\n        <span class=\"token keyword\">if<\/span> err <span class=\"token operator\">!=<\/span> nil {\r\n            n<span class=\"token operator\">+<\/span><span class=\"token operator\">+<\/span>\r\n        }\r\n    }\r\n    <span class=\"token comment\">\/\/ \u5982\u679c\u9519\u8bef\u7684\u6570\u91cf\u4e3a 0\uff0c\u8fd4\u56de nil<\/span>\r\n    <span class=\"token keyword\">if<\/span> n <span class=\"token operator\">=<\/span><span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span> {\r\n        <span class=\"token keyword\">return<\/span> nil\r\n    }\r\n    <span class=\"token comment\">\/\/ \u5b9a\u4e49 *joinError \u53d8\u91cf<\/span>\r\n    e :<span class=\"token operator\">=<\/span> <span class=\"token operator\">&amp;<\/span>joinError{\r\n        errs: make<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span>error<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> n<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\r\n    }\r\n    <span class=\"token comment\">\/\/ \u5b58\u50a8\u6240\u6709 error \u5bf9\u8c61<\/span>\r\n    <span class=\"token keyword\">for<\/span> _<span class=\"token punctuation\">,<\/span> err :<span class=\"token operator\">=<\/span> range errs {\r\n        <span class=\"token keyword\">if<\/span> err <span class=\"token operator\">!=<\/span> nil {\r\n            e<span class=\"token punctuation\">.<\/span>errs <span class=\"token operator\">=<\/span> append<span class=\"token punctuation\">(<\/span>e<span class=\"token punctuation\">.<\/span>errs<span class=\"token punctuation\">,<\/span> err<span class=\"token punctuation\">)<\/span>\r\n        }\r\n    }\r\n    <span class=\"token keyword\">return<\/span> e\r\n}<\/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<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>\u6e90\u7801\u5256\u6790\uff1a<\/p>\n<ul data-id=\"u738a58b-OAdY9yfu\">\n<li data-id=\"ld70c578-xmxcYYvc\">\u7edf\u8ba1\u6709\u6548\u7684\u9519\u8bef\u5bf9\u8c61\u6570\u91cf\uff1a\u904d\u5386\u00a0errs\uff0c\u7edf\u8ba1\u6709\u6548\u7684\u00a0error\u00a0\u5bf9\u8c61\u6570\u91cf\u3002\u5f53\u00a0error\u00a0\u5bf9\u8c61\u4e0d\u4e3a\u00a0nil\u00a0\u65f6\u6570\u91cf\u52a0\u00a01\u3002\u7edf\u8ba1\u5b8c\u6210\u4e4b\u540e\uff0c\u5982\u679c\u6709\u6548\u7684\u00a0error\u00a0\u5bf9\u8c61\u6570\u91cf\u4e3a\u00a00\uff0c\u5219\u8fd4\u56de\u00a0nil\u3002<\/li>\n<li data-id=\"ld70c578-CZdlTpm3\">\u5b9a\u4e49\u00a0joinError\u00a0\u7ed3\u6784\u4f53\u53d8\u91cf\uff1a\u5b9a\u4e49\u7c7b\u578b\u4e3a joinError\u7ed3\u6784\u4f53\u7684\u53d8\u91cfe\uff0c\u7528\u4e8e\u5b58\u50a8\u6240\u6709\u7684\u00a0error` \u5bf9\u8c61\u3002<\/li>\n<li data-id=\"ld70c578-ISG9xN1j\">\u5b58\u50a8 error \u53d8\u91cf\uff1a\u904d\u5386\u00a0errs\uff0c\u5b58\u50a8\u503c\u4e0d\u4e3a\u00a0nil\u00a0\u7684\u00a0error\u00a0\u5bf9\u8c61\u3002<\/li>\n<li data-id=\"ld70c578-VDiTO9Es\">\u8fd4\u56de\u00a0joinError\u00a0\u7ed3\u6784\u4f53\u53d8\u91cf\u00a0e\u3002<\/li>\n<\/ul>\n<p>\u603b\u7684\u6765\u8bf4\uff0cJoin\u00a0\u51fd\u6570\u901a\u8fc7\u4f7f\u7528\u00a0*joinError\u00a0\u7684\u7ed3\u6784\u4f53\u5bf9\u8c61\u5c01\u88c5\u4e86\u591a\u4e2a\u9519\u8bef\u5bf9\u8c61\uff0c\u5b9e\u73b0\u4e86\u9519\u8bef\u7684\u5305\u88c5\uff08\u5408\u5e76\uff09\u3002 \u5728\u6b64\u8fc7\u7a0b\u4e2d\uff0cJoin\u00a0\u51fd\u6570\u6392\u9664\u90a3\u4e9b\u503c\u4e3a\u00a0nil\u00a0\u7684\u00a0error\u00a0\u5bf9\u8c61\uff0c\u4ece\u800c\u53ea\u5904\u7406\u6709\u6548\u7684\u9519\u8bef\u3002<\/p>\n<h3>Unwrap \u51fd\u6570<\/h3>\n<p>errors.Unwrap\u00a0\u51fd\u6570\u7528\u4e8e\u83b7\u53d6\u4e00\u4e2a\u5305\u88c5\u8fc7\u7684\u00a0error\u00a0\u503c\u7684\u539f\u59cb\u00a0error\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-sql\" tabindex=\"0\"><code class=\"language-sql\">func Unwrap<span class=\"token punctuation\">(<\/span>err error<span class=\"token punctuation\">)<\/span> error {\r\n    <span class=\"token comment\">\/\/ \u5224\u65ad err \u662f\u5426\u5b9e\u73b0\u4e86 Unwrap \u65b9\u6cd5<\/span>\r\n    u<span class=\"token punctuation\">,<\/span> ok :<span class=\"token operator\">=<\/span> err<span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">(<\/span>interface {\r\n        Unwrap<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> error\r\n    }<span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token comment\">\/\/ \u5982\u679c\u6ca1\u6709\u5b9e\u73b0\uff0c\u8fd4\u56de nil<\/span>\r\n    <span class=\"token keyword\">if<\/span> <span class=\"token operator\">!<\/span>ok {\r\n        <span class=\"token keyword\">return<\/span> nil\r\n    }\r\n    <span class=\"token comment\">\/\/ \u8c03\u7528 Unwrap \u65b9\u6cd5\uff0c\u5c06\u8c03\u7528\u7ed3\u679c\u4f5c\u4e3a\u8fd4\u56de\u503c\u8fd4\u56de<\/span>\r\n    <span class=\"token keyword\">return<\/span> u<span class=\"token punctuation\">.<\/span>Unwrap<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n}<\/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<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>\u6e90\u7801\u5256\u6790\uff1a<\/p>\n<ul data-id=\"u738a58b-3l7dtfcR\">\n<li data-id=\"ld70c578-kymVBPty\">\u68c0\u67e5\u662f\u5426\u5b9e\u73b0\u4e86\u00a0Unwrap() error\u00a0\u65b9\u6cd5\uff1a\u5982\u679c\u00a0err\u00a0\u5b9e\u73b0\u4e86\u00a0Unwrap() error\uff0c\u5219\u8c03\u7528\u00a0Unwrap()\u00a0\u65b9\u6cd5\u83b7\u53d6\u5230\u89e3\u5305\u7684\u65b0\u9519\u8bef\uff0c\u7136\u540e\u8fd4\u56de\u8be5\u9519\u8bef\uff0c\u5426\u5219\u8fd4\u56de\u00a0nil\u3002<\/li>\n<li data-id=\"ld70c578-5LIvi6cB\">\u7279\u522b\u6ce8\u610f\u7684\u662f\u8be5\u51fd\u6570\u4e0d\u80fd\u89e3\u5305\u901a\u8fc7\u00a0Join\u00a0\u51fd\u6570\u5408\u5e76\u7684\u9519\u8bef\uff0c\u56e0\u4e3a\u8be5\u51fd\u6570\u8fd4\u56de\u7684\u00a0error\u00a0\u5bf9\u8c61\u5e95\u5c42\u7684\u5b9e\u73b0\u662fjoinError\u00a0\u7ed3\u6784\u4f53\uff0c\u8be5\u7ed3\u6784\u4f53\u5b9e\u73b0\u7684\u662f\u00a0Unwrap() []error\u00a0\u65b9\u6cd5\uff0c\u800c\u4e0d\u662f\u00a0Unwrap() error\u3002<\/li>\n<\/ul>\n<p>\u603b\u7684\u6765\u8bf4\uff0cUnwrap\u00a0\u51fd\u6570\u901a\u8fc7\u68c0\u67e5\u63a5\u6536\u7684\u00a0err\u00a0\u5bf9\u8c61\u662f\u5426\u5b9e\u73b0\u00a0Unwrap() error\u00a0\u65b9\u6cd5\u6765\u505a\u51fa\u76f8\u5e94\u5904\u7406\u3002\u5982\u679c\u5b9e\u73b0\u8be5\u65b9\u6cd5\uff0c\u8fd4\u56de\u8c03\u7528\u8be5\u65b9\u6cd5\u7684\u7ed3\u679c\uff0c\u5426\u5219\uff0c\u8fd4\u56de\u00a0nil\u3002<\/p>\n<h2>\u5c0f\u7ed3<\/h2>\n<p>\u672c\u6587\u6df1\u5165\u63a2\u8ba8\u4e86\u00a0Go\u00a0\u8bed\u8a00\u7684\u00a0errors\u00a0\u6807\u51c6\u5e93\uff0c\u5177\u4f53\u6db5\u76d6\u4e86\u8be5\u5e93\u7684\u00a0\u57fa\u672c\u4f7f\u7528\u00a0\u548c\u00a0\u6e90\u7801\u89e3\u6790\u3002<\/p>\n<p>\u9996\u5148\u4ece\u8be5\u5e93\u7684\u57fa\u672c\u4f7f\u7528\u8bb2\u8d77\uff0c\u4ecb\u7ecd\u4e86\u5982\u4f55\u521b\u5efa\u9519\u8bef\u3001\u5339\u914d\u9519\u8bef\u3001\u65ad\u8a00\u9519\u8bef\u548c\u5305\u88c5\u9519\u8bef\u4ee5\u53ca\u83b7\u53d6\u539f\u59cb\u9519\u8bef\u3002\u63a5\u7740\uff0c\u5bf9\u00a0errors\u00a0\u6807\u51c6\u5e93\u7684\u6e90\u7801\u8fdb\u884c\u89e3\u6790\uff0c\u7406\u89e3\u5404\u7ed3\u6784\u4f53\u7684\u5b9a\u4e49\u548c\u5404\u51fd\u6570\u7684\u5185\u90e8\u5de5\u4f5c\u539f\u7406\u3002<\/p>\n<p>\u603b\u800c\u8a00\u4e4b\uff0c\u7406\u89e3\u548c\u638c\u63e1\u00a0errors\u00a0\u5e93\u7684\u57fa\u672c\u4f7f\u7528\u548c\u6e90\u7801\u5b9e\u73b0\uff0c\u80fd\u5e2e\u52a9\u6211\u4eec\u66f4\u52a0\u719f\u7ec3\u5730\u5904\u7406\u9519\u8bef\uff0c\u63d0\u9ad8\u4ee3\u7801\u7684\u5065\u58ee\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n<\/div>\n<\/div>\n<div class=\"pvc_clear\"><\/div>\n<p id=\"pvc_stats_21094\" class=\"pvc_stats total_only  \" data-element-id=\"21094\" 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>\u9996\u5148\u4ece\u8be5\u5e93\u7684\u57fa\u672c\u4f7f\u7528\u8bb2\u8d77\uff0c\u4ecb\u7ecd\u4e86\u5982\u4f55\u521b\u5efa\u9519\u8bef\u3001\u5339\u914d\u9519\u8bef\u3001\u65ad\u8a00\u9519\u8bef\u548c\u5305\u88c5\u9519\u8bef\u4ee5\u53ca\u83b7\u53d6\u539f\u59cb\u9519\u8bef\u3002\u63a5\u7740\uff0c\u5bf9 erro [&hellip;]<\/p>\n<div class=\"pvc_clear\"><\/div>\n<p id=\"pvc_stats_21094\" class=\"pvc_stats total_only  \" data-element-id=\"21094\" 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":21095,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23,20,80],"tags":[1198,1197,1119],"class_list":["post-21094","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-23","category-20","category-80","tag-errors","tag-go","tag-1119"],"_links":{"self":[{"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/posts\/21094","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=21094"}],"version-history":[{"count":1,"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/posts\/21094\/revisions"}],"predecessor-version":[{"id":21096,"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/posts\/21094\/revisions\/21096"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/media\/21095"}],"wp:attachment":[{"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/media?parent=21094"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/categories?post=21094"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/tags?post=21094"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}