{"id":57628,"date":"2024-10-10T19:51:17","date_gmt":"2024-10-10T11:51:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/57628\/"},"modified":"2024-10-10T19:51:17","modified_gmt":"2024-10-10T11:51:17","slug":"go%e6%95%99%e7%a8%8b-go-%e8%aa%9e%e8%a8%80%e8%99%95%e7%90%86%e9%81%8b%e8%a1%8c%e6%99%82%e9%8c%af%e8%aa%a4","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/57628\/","title":{"rendered":"GO\u6559\u7a0b: Go \u8a9e\u8a00\u8655\u7406\u904b\u884c\u6642\u932f\u8aa4"},"content":{"rendered":"<h1 id=\"go%e6%95%99%e7%a8%8b-go-%e8%aa%9e%e8%a8%80%e8%99%95%e7%90%86%e9%81%8b%e8%a1%8c%e6%99%82%e9%8c%af%e8%aa%a4-mYVVrCmgqW\">GO\u6559\u7a0b: Go \u8a9e\u8a00\u8655\u7406\u904b\u884c\u6642\u932f\u8aa4<\/h1>\n<p>\u5728\u958b\u767c\u61c9\u7528\u7a0b\u5f0f\u7684\u904e\u7a0b\u4e2d\uff0c\u904b\u884c\u6642\u932f\u8aa4\u662f\u4e0d\u53ef\u907f\u514d\u7684\u3002Go \u8a9e\u8a00\u4f5c\u70ba\u4e00\u7a2e\u975c\u614b\u985e\u578b\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u5f0f\u4f86\u8655\u7406\u9019\u4e9b\u932f\u8aa4\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e Go \u8a9e\u8a00\u4e2d\u904b\u884c\u6642\u932f\u8aa4\u7684\u8655\u7406\u65b9\u6cd5\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u6709\u6548\u5730\u7ba1\u7406\u932f\u8aa4\uff0c\u63d0\u5347\u61c9\u7528\u7a0b\u5f0f\u7684\u7a69\u5b9a\u6027\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e9%81%8b%e8%a1%8c%e6%99%82%e9%8c%af%e8%aa%a4%ef%bc%9f-mYVVrCmgqW\">\u4ec0\u9ebc\u662f\u904b\u884c\u6642\u932f\u8aa4\uff1f<\/h2>\n<p>\u904b\u884c\u6642\u932f\u8aa4\u662f\u6307\u5728\u7a0b\u5f0f\u57f7\u884c\u904e\u7a0b\u4e2d\u767c\u751f\u7684\u932f\u8aa4\uff0c\u9019\u4e9b\u932f\u8aa4\u901a\u5e38\u662f\u7531\u65bc\u4e0d\u7576\u7684\u64cd\u4f5c\u6216\u4e0d\u7b26\u5408\u9810\u671f\u7684\u8f38\u5165\u5f15\u8d77\u7684\u3002\u5728 Go \u8a9e\u8a00\u4e2d\uff0c\u904b\u884c\u6642\u932f\u8aa4\u901a\u5e38\u6703\u5c0e\u81f4\u7a0b\u5f0f\u5d29\u6f70\uff0c\u9019\u5c0d\u65bc\u751f\u7522\u74b0\u5883\u4f86\u8aaa\u662f\u975e\u5e38\u4e0d\u7406\u60f3\u7684\u3002<\/p>\n<h2 id=\"go-%e8%aa%9e%e8%a8%80%e4%b8%ad%e7%9a%84%e9%8c%af%e8%aa%a4%e8%99%95%e7%90%86-mYVVrCmgqW\">Go \u8a9e\u8a00\u4e2d\u7684\u932f\u8aa4\u8655\u7406<\/h2>\n<p>Go \u8a9e\u8a00\u7684\u932f\u8aa4\u8655\u7406\u4e3b\u8981\u4f9d\u8cf4\u65bc\u8fd4\u56de\u503c\u7684\u65b9\u5f0f\u3002\u51fd\u6578\u901a\u5e38\u6703\u8fd4\u56de\u4e00\u500b\u932f\u8aa4\u985e\u578b\u7684\u503c\uff0c\u958b\u767c\u8005\u9700\u8981\u6aa2\u67e5\u9019\u500b\u503c\u4f86\u78ba\u5b9a\u662f\u5426\u767c\u751f\u4e86\u932f\u8aa4\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>package main\n\nimport (\n    \"errors\"\n    \"fmt\"\n)\n\nfunc divide(a, b int) (int, error) {\n    if b == 0 {\n        return 0, errors.New(\"\u9664\u6578\u4e0d\u80fd\u70ba\u96f6\")\n    }\n    return a \/ b, nil\n}\n\nfunc main() {\n    result, err := divide(10, 0)\n    if err != nil {\n        fmt.Println(\"\u932f\u8aa4:\", err)\n    } else {\n        fmt.Println(\"\u7d50\u679c:\", result)\n    }\n}\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c`divide` \u51fd\u6578\u6703\u6aa2\u67e5\u9664\u6578\u662f\u5426\u70ba\u96f6\uff0c\u5982\u679c\u662f\uff0c\u5247\u8fd4\u56de\u4e00\u500b\u932f\u8aa4\u3002\u4e3b\u51fd\u6578\u4e2d\u6aa2\u67e5\u932f\u8aa4\u4e26\u9032\u884c\u76f8\u61c9\u7684\u8655\u7406\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8-panic-%e5%92%8c-recover-mYVVrCmgqW\">\u4f7f\u7528 panic \u548c recover<\/h2>\n<p>\u9664\u4e86\u8fd4\u56de\u932f\u8aa4\uff0cGo \u8a9e\u8a00\u9084\u63d0\u4f9b\u4e86 `panic` \u548c `recover` \u5169\u500b\u5167\u5efa\u51fd\u6578\u4f86\u8655\u7406\u904b\u884c\u6642\u932f\u8aa4\u3002\u7576\u767c\u751f\u56b4\u91cd\u932f\u8aa4\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528 `panic` \u4f86\u7d42\u6b62\u7a0b\u5f0f\u7684\u57f7\u884c\uff0c\u800c `recover` \u5247\u53ef\u4ee5\u5728 `defer` \u8a9e\u53e5\u4e2d\u6355\u7372\u9019\u4e9b\u932f\u8aa4\uff0c\u5f9e\u800c\u9632\u6b62\u7a0b\u5f0f\u5d29\u6f70\u3002<\/p>\n<pre><code>package main\n\nimport \"fmt\"\n\nfunc riskyFunction() {\n    panic(\"\u767c\u751f\u4e86\u56b4\u91cd\u932f\u8aa4\")\n}\n\nfunc main() {\n    defer func() {\n        if r := recover(); r != nil {\n            fmt.Println(\"\u6355\u7372\u5230\u932f\u8aa4:\", r)\n        }\n    }()\n\n    riskyFunction()\n    fmt.Println(\"\u9019\u884c\u7a0b\u5f0f\u78bc\u4e0d\u6703\u57f7\u884c\")\n}\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c`riskyFunction` \u6703\u89f8\u767c\u4e00\u500b `panic`\uff0c\u4f46\u7531\u65bc `recover` \u7684\u4f7f\u7528\uff0c\u4e3b\u51fd\u6578\u4e0d\u6703\u5d29\u6f70\uff0c\u800c\u662f\u80fd\u5920\u6355\u7372\u5230\u932f\u8aa4\u4e26\u7e7c\u7e8c\u57f7\u884c\u3002<\/p>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-mYVVrCmgqW\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<ul>\n<li><strong>\u59cb\u7d42\u6aa2\u67e5\u932f\u8aa4\uff1a<\/strong>\u5728\u6bcf\u500b\u53ef\u80fd\u8fd4\u56de\u932f\u8aa4\u7684\u51fd\u6578\u8abf\u7528\u5f8c\uff0c\u52d9\u5fc5\u6aa2\u67e5\u932f\u8aa4\u3002<\/li>\n<li><strong>\u4f7f\u7528 panic \u548c recover \u8b39\u614e\uff1a<\/strong>\u9019\u4e9b\u529f\u80fd\u61c9\u8a72\u50c5\u7528\u65bc\u7121\u6cd5\u6062\u5fa9\u7684\u932f\u8aa4\u60c5\u6cc1\u3002<\/li>\n<li><strong>\u63d0\u4f9b\u6e05\u6670\u7684\u932f\u8aa4\u4fe1\u606f\uff1a<\/strong>\u5728\u8fd4\u56de\u932f\u8aa4\u6642\uff0c\u63d0\u4f9b\u8db3\u5920\u7684\u4e0a\u4e0b\u6587\u4fe1\u606f\u4ee5\u4fbf\u65bc\u8abf\u8a66\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-mYVVrCmgqW\">\u7e3d\u7d50<\/h2>\n<p>Go \u8a9e\u8a00\u63d0\u4f9b\u4e86\u9748\u6d3b\u4e14\u5f37\u5927\u7684\u932f\u8aa4\u8655\u7406\u6a5f\u5236\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u901a\u904e\u8fd4\u56de\u932f\u8aa4\u503c\u3001\u4f7f\u7528 `panic` \u548c `recover` \u4f86\u6709\u6548\u5730\u7ba1\u7406\u904b\u884c\u6642\u932f\u8aa4\u3002\u9019\u4e9b\u6280\u8853\u4e0d\u50c5\u80fd\u63d0\u9ad8\u7a0b\u5f0f\u7684\u7a69\u5b9a\u6027\uff0c\u9084\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u5feb\u901f\u5b9a\u4f4d\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u53ef\u7528\u6027\u7684\u61c9\u7528\u7a0b\u5f0f\uff0c\u826f\u597d\u7684\u932f\u8aa4\u8655\u7406\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f\u958b\u767c\u74b0\u5883\u9084\u662f\u751f\u7522\u74b0\u5883\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3 Go \u8a9e\u8a00\u4e2d\u7684\u904b\u884c\u6642\u932f\u8aa4\u8655\u7406\u6280\u5de7\uff0c\u63d0\u5347\u7a0b\u5f0f\u7a69\u5b9a\u6027\u8207\u6548\u80fd\uff0c\u638c\u63e1\u932f\u8aa4\u6392\u67e5\u8207\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-57628","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57628","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=57628"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57628\/revisions"}],"predecessor-version":[{"id":57629,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57628\/revisions\/57629"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=57628"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=57628"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=57628"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}