{"id":205874,"date":"2025-06-12T10:08:07","date_gmt":"2025-06-12T02:08:07","guid":{"rendered":"https:\/\/server.hk\/cnblog\/205874\/"},"modified":"2025-06-12T10:08:07","modified_gmt":"2025-06-12T02:08:07","slug":"golang%e5%87%bd%e6%95%b0%e9%87%8d%e8%bd%bd%e5%9c%a8%e9%94%99%e8%af%af%e5%a4%84%e7%90%86%e4%b8%ad%e7%9a%84%e4%bc%98%e5%8a%bf","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/205874\/","title":{"rendered":"Golang\u51fd\u6570\u91cd\u8f7d\u5728\u9519\u8bef\u5904\u7406\u4e2d\u7684\u4f18\u52bf"},"content":{"rendered":"<p>\u5bf9\u4e8e\u4e00\u4e2aGOLANG\u5f00\u53d1\u8005\u6765\u8bf4\uff0c\u7262\u56fa\u624e\u5b9e\u7684\u57fa\u7840\u662f\u5341\u5206\u91cd\u8981\u7684\uff0cGOLANG\u5c31\u6765\u5e26\u5927\u5bb6\u4e00\u70b9\u70b9\u7684\u638c\u63e1\u57fa\u7840\u77e5\u8bc6\u70b9\u3002\u4eca\u5929\u672c\u7bc7\u6587\u7ae0\u5e26\u5927\u5bb6\u4e86\u89e3\u300aGOLANG\u51fd\u6570\u91cd\u8f7d\u5728\u9519\u8bef\u5904\u7406\u4e2d\u7684\u4f18\u52bf\u300b\uff0c\u4e3b\u8981\u4ecb\u7ecd\u4e86\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u5feb\u70b9\u6536\u85cf\u8d77\u6765\u5427\uff0c\u5426\u5219\u9700\u8981\u65f6\u5c31\u627e\u4e0d\u5230\u4e86\uff01,Go \u4e2d\u51fd\u6570\u91cd\u8f7d\u5728\u9519\u8bef\u5904\u7406\u4e2d\u6709\u4ee5\u4e0b\u4f18\u52bf\uff1a\u5141\u8bb8\u521b\u5efa\u5177\u6709\u4e0d\u540c\u53c2\u6570\u7684\u540c\u540d\u51fd\u6570\uff0c\u65b9\u4fbf\u9488\u5bf9\u7279\u5b9a\u9519\u8bef\u7c7b\u578b\u63d0\u4f9b\u5b9a\u5236\u5904\u7406\u3002\u901a\u8fc7\u7c7b\u578b\u65ad\u8a00\uff0c\u53ef\u4ee5\u6839\u636e\u9519\u8bef\u7c7b\u578b\u9009\u62e9\u8c03\u7528\u54ea\u4e2a\u51fd\u6570\uff0c\u5b9e\u73b0\u9ad8\u6548\u9519\u8bef\u5904\u7406\u3002\u63d0\u9ad8\u4ee3\u7801\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u65e0\u9700\u4e3a\u6bcf\u79cd\u53ef\u80fd\u9519\u8bef\u7f16\u5199\u72ec\u7acb\u51fd\u6570\u3002,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241027\/1730026238671e1afe0a6b8.jpg\" class=\"aligncenter\">,<br \/>\n<strong>Go \u4e2d\u51fd\u6570\u91cd\u8f7d\u5728\u9519\u8bef\u5904\u7406\u4e2d\u7684\u4f18\u52bf<\/strong>,\u5728 Go \u7f16\u7a0b\u4e2d\uff0c\u51fd\u6570\u91cd\u8f7d\u5141\u8bb8\u521b\u5efa\u5177\u6709\u76f8\u540c\u540d\u79f0\u4f46\u53c2\u6570\u4e0d\u540c\uff08\u7c7b\u578b\u6216\u6570\u91cf\uff09\u7684\u591a\u4e2a\u51fd\u6570\u3002\u6b64\u529f\u80fd\u5728\u9519\u8bef\u5904\u7406\u4e2d\u975e\u5e38\u6709\u7528\uff0c\u56e0\u4e3a\u5b83\u5141\u8bb8\u6211\u4eec\u63d0\u4f9b\u9488\u5bf9\u7279\u5b9a\u9519\u8bef\u7c7b\u578b\u6216\u60c5\u51b5\u91cf\u8eab\u5b9a\u5236\u7684\u51fd\u6570\u7248\u672c\u3002,\u8003\u8651\u4ee5\u4e0b\u793a\u4f8b\uff1a,\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u6709\u4e24\u4e2a\u51fd\u6570\u90fd\u5904\u7406\u9519\u8bef\u3002<br \/>\n<code>HandleError<\/code> \u662f\u4e00\u4e2a\u901a\u7528\u7684\u9519\u8bef\u5904\u7406\u51fd\u6570\uff0c\u800c<br \/>\n<code>HandleSpecificError<\/code> \u662f\u4e00\u4e2a\u9488\u5bf9\u66f4\u5177\u4f53\u7684<br \/>\n<code>MyCustomError<\/code> \u7c7b\u578b\u9519\u8bef\u7684\u51fd\u6570\u3002,\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u5728\u9519\u8bef\u7c7b\u578b\u4e0a\u8fdb\u884c\u7c7b\u578b\u65ad\u8a00\u6765\u5229\u7528 Go \u7684\u51fd\u6570\u91cd\u8f7d\uff1a,\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5982\u679c<br \/>\n<code>err<\/code> \u4e3a<br \/>\n<code>nil<\/code>\uff0c\u6211\u4eec\u5c06\u4e0d\u6267\u884c\u4efb\u4f55\u64cd\u4f5c\u3002\u5982\u679c<br \/>\n<code>err<\/code> \u662f<br \/>\n<code>MyCustomError<\/code> \u7c7b\u578b\uff0c\u6211\u4eec\u5c06\u8c03\u7528<br \/>\n<code>HandleSpecificError<\/code> \u51fd\u6570\u3002\u5426\u5219\uff0c\u6211\u4eec\u5c06\u8c03\u7528\u901a\u7528\u7684<br \/>\n<code>HandleError<\/code> \u51fd\u6570\u3002,\u8fd9\u79cd\u6280\u672f\u5141\u8bb8\u6211\u4eec\u5904\u7406\u4e0d\u540c\u7c7b\u578b\u7684\u9519\u8bef\u5e76\u4e3a\u4e0d\u540c\u7684\u60c5\u51b5\u63d0\u4f9b\u91cf\u8eab\u5b9a\u5236\u7684\u54cd\u5e94\u3002\u8fd9\u6709\u52a9\u4e8e\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u56e0\u4e3a\u6211\u4eec\u4e0d\u5fc5\u4e3a\u6bcf\u79cd\u53ef\u80fd\u7684\u9519\u8bef\u7f16\u5199\u5355\u72ec\u7684\u51fd\u6570\u3002,\u672c\u7bc7\u5173\u4e8e\u300aGOLANG\u51fd\u6570\u91cd\u8f7d\u5728\u9519\u8bef\u5904\u7406\u4e2d\u7684\u4f18\u52bf\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8eGOLANG\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff01,\u5bf9\u4e8e\u4e00\u4e2aGOLANG\u5f00\u53d1\u8005\u6765\u8bf4\uff0c\u7262\u56fa\u624e\u5b9e\u7684\u57fa\u7840\u662f\u5341\u5206\u91cd\u8981\u7684\uff0cGOLANG\u5c31\u6765\u5e26\u5927\u5bb6\u4e00\u70b9\u70b9\u7684\u638c\u63e1\u57fa\u7840\u77e5\u8bc6\u70b9\u3002\u4eca\u5929\u672c\u7bc7\u6587\u7ae0\u5e26\u5927\u5bb6\u4e86\u89e3\u300aGOLANG\u51fd\u6570\u91cd\u8f7d\u5728\u9519\u8bef\u5904\u7406\u4e2d\u7684\u4f18\u52bf\u300b\uff0c\u4e3b\u8981\u4ecb\u7ecd\u4e86\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u5feb\u70b9\u6536\u85cf\u8d77\u6765\u5427\uff0c\u5426\u5219\u9700\u8981\u65f6\u5c31\u627e\u4e0d\u5230\u4e86\uff01,<br \/>\n<b><\/b> <\/p>\n<p>\u5f53\u524d\u4f4d\u7f6e\uff1a <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span> <span>GOLANG\u51fd\u6570\u91cd\u8f7d\u5728\u9519\u8bef\u5904\u7406\u4e2d\u7684\u4f18\u52bf<\/span><\/p>\n<h1>GOLANG\u51fd\u6570\u91cd\u8f7d\u5728\u9519\u8bef\u5904\u7406\u4e2d\u7684\u4f18\u52bf<\/h1>\n<p><span>2024-10-27 18:50:53<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u5bf9\u4e8e\u4e00\u4e2aGOLANG\u5f00\u53d1\u8005\u6765\u8bf4\uff0c\u7262\u56fa\u624e\u5b9e\u7684\u57fa\u7840\u662f\u5341\u5206\u91cd\u8981\u7684\uff0cGOLANG\u5c31\u6765\u5e26\u5927\u5bb6\u4e00\u70b9\u70b9\u7684\u638c\u63e1\u57fa\u7840\u77e5\u8bc6\u70b9\u3002\u4eca\u5929\u672c\u7bc7\u6587\u7ae0\u5e26\u5927\u5bb6\u4e86\u89e3\u300aGOLANG\u51fd\u6570\u91cd\u8f7d\u5728\u9519\u8bef\u5904\u7406\u4e2d\u7684\u4f18\u52bf\u300b\uff0c\u4e3b\u8981\u4ecb\u7ecd\u4e86\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u5feb\u70b9\u6536\u85cf\u8d77\u6765\u5427\uff0c\u5426\u5219\u9700\u8981\u65f6\u5c31\u627e\u4e0d\u5230\u4e86\uff01<\/p>\n<p>Go \u4e2d\u51fd\u6570\u91cd\u8f7d\u5728\u9519\u8bef\u5904\u7406\u4e2d\u6709\u4ee5\u4e0b\u4f18\u52bf\uff1a\u5141\u8bb8\u521b\u5efa\u5177\u6709\u4e0d\u540c\u53c2\u6570\u7684\u540c\u540d\u51fd\u6570\uff0c\u65b9\u4fbf\u9488\u5bf9\u7279\u5b9a\u9519\u8bef\u7c7b\u578b\u63d0\u4f9b\u5b9a\u5236\u5904\u7406\u3002\u901a\u8fc7\u7c7b\u578b\u65ad\u8a00\uff0c\u53ef\u4ee5\u6839\u636e\u9519\u8bef\u7c7b\u578b\u9009\u62e9\u8c03\u7528\u54ea\u4e2a\u51fd\u6570\uff0c\u5b9e\u73b0\u9ad8\u6548\u9519\u8bef\u5904\u7406\u3002\u63d0\u9ad8\u4ee3\u7801\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u65e0\u9700\u4e3a\u6bcf\u79cd\u53ef\u80fd\u9519\u8bef\u7f16\u5199\u72ec\u7acb\u51fd\u6570\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241027\/1730026238671e1afe0a6b8.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Go \u4e2d\u51fd\u6570\u91cd\u8f7d\u5728\u9519\u8bef\u5904\u7406\u4e2d\u7684\u4f18\u52bf<\/strong><\/p>\n<p>\u5728 Go \u7f16\u7a0b\u4e2d\uff0c\u51fd\u6570\u91cd\u8f7d\u5141\u8bb8\u521b\u5efa\u5177\u6709\u76f8\u540c\u540d\u79f0\u4f46\u53c2\u6570\u4e0d\u540c\uff08\u7c7b\u578b\u6216\u6570\u91cf\uff09\u7684\u591a\u4e2a\u51fd\u6570\u3002\u6b64\u529f\u80fd\u5728\u9519\u8bef\u5904\u7406\u4e2d\u975e\u5e38\u6709\u7528\uff0c\u56e0\u4e3a\u5b83\u5141\u8bb8\u6211\u4eec\u63d0\u4f9b\u9488\u5bf9\u7279\u5b9a\u9519\u8bef\u7c7b\u578b\u6216\u60c5\u51b5\u91cf\u8eab\u5b9a\u5236\u7684\u51fd\u6570\u7248\u672c\u3002<\/p>\n<p>\u8003\u8651\u4ee5\u4e0b\u793a\u4f8b\uff1a<\/p>\n<pre>func HandleError(err error) {\n    fmt.Println(\"Error occurred:\", err)\n}\n\nfunc HandleSpecificError(err *MyCustomError) {\n    \/\/ \u5904\u7406\u7279\u5b9a\u4e8e MyCustomError \u7c7b\u578b\u9519\u8bef\u7684\u903b\u8f91\n}<\/pre>\n<p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u6709\u4e24\u4e2a\u51fd\u6570\u90fd\u5904\u7406\u9519\u8bef\u3002 <code>HandleError<\/code> \u662f\u4e00\u4e2a\u901a\u7528\u7684\u9519\u8bef\u5904\u7406\u51fd\u6570\uff0c\u800c <code>HandleSpecificError<\/code> \u662f\u4e00\u4e2a\u9488\u5bf9\u66f4\u5177\u4f53\u7684 <code>MyCustomError<\/code> \u7c7b\u578b\u9519\u8bef\u7684\u51fd\u6570\u3002<\/p>\n<p>\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u5728\u9519\u8bef\u7c7b\u578b\u4e0a\u8fdb\u884c\u7c7b\u578b\u65ad\u8a00\u6765\u5229\u7528 Go \u7684\u51fd\u6570\u91cd\u8f7d\uff1a<\/p>\n<pre>func main() {\n    err := doSomething()\n\n    switch err.(type) {\n    case nil:\n        fmt.Println(\"No error occurred\")\n    case *MyCustomError:\n        HandleSpecificError(err.(*MyCustomError))\n    default:\n        HandleError(err)\n    }\n}<\/pre>\n<p>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5982\u679c <code>err<\/code> \u4e3a <code>nil<\/code>\uff0c\u6211\u4eec\u5c06\u4e0d\u6267\u884c\u4efb\u4f55\u64cd\u4f5c\u3002\u5982\u679c <code>err<\/code> \u662f <code>MyCustomError<\/code> \u7c7b\u578b\uff0c\u6211\u4eec\u5c06\u8c03\u7528 <code>HandleSpecificError<\/code> \u51fd\u6570\u3002\u5426\u5219\uff0c\u6211\u4eec\u5c06\u8c03\u7528\u901a\u7528\u7684 <code>HandleError<\/code> \u51fd\u6570\u3002<\/p>\n<p>\u8fd9\u79cd\u6280\u672f\u5141\u8bb8\u6211\u4eec\u5904\u7406\u4e0d\u540c\u7c7b\u578b\u7684\u9519\u8bef\u5e76\u4e3a\u4e0d\u540c\u7684\u60c5\u51b5\u63d0\u4f9b\u91cf\u8eab\u5b9a\u5236\u7684\u54cd\u5e94\u3002\u8fd9\u6709\u52a9\u4e8e\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u56e0\u4e3a\u6211\u4eec\u4e0d\u5fc5\u4e3a\u6bcf\u79cd\u53ef\u80fd\u7684\u9519\u8bef\u7f16\u5199\u5355\u72ec\u7684\u51fd\u6570\u3002<\/p>\n<p>\u672c\u7bc7\u5173\u4e8e\u300aGOLANG\u51fd\u6570\u91cd\u8f7d\u5728\u9519\u8bef\u5904\u7406\u4e2d\u7684\u4f18\u52bf\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8eGOLANG\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   Go \u51fd\u6570\u4e2d\u7684\u540d\u79f0\u503c\u5bf9\u53c2\u6570\u4f20\u9012\u65b9\u5f0f\uff1f\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u533f\u540d\u51fd\u6570\u5bf9 PHP \u4ee3\u7801\u53ef\u7ef4\u62a4\u6027\u7684\u5f71\u54cd\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u5bf9\u4e8e\u4e00\u4e2aGOLANG\u5f00\u53d1\u8005\u6765\u8bf4\uff0c&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-205874","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205874","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=205874"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205874\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=205874"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=205874"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=205874"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}