{"id":207771,"date":"2025-07-08T10:53:12","date_gmt":"2025-07-08T02:53:12","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207771\/"},"modified":"2025-07-08T10:53:12","modified_gmt":"2025-07-08T02:53:12","slug":"%e7%ba%a0%e6%ad%a3%e5%85%b3%e4%ba%8e%e9%94%99%e8%af%af%e6%a0%bc%e5%bc%8f%e5%8f%82%e6%95%b0%e7%9a%84go-vet%e8%ad%a6%e5%91%8a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207771\/","title":{"rendered":"\u7ea0\u6b63\u5173\u4e8e\u9519\u8bef\u683c\u5f0f\u53c2\u6570\u7684\u201cgo vet\u201d\u8b66\u544a"},"content":{"rendered":"

<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u7ea0\u6b63\u5173\u4e8e\u9519\u8bef\u683c\u5f0f\u53c2\u6570\u7684\u201cgo vet\u201d\u8b66\u544a<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-25 15:09:33<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u6765\u5230\u7684\u5927\u5bb6\uff0c\u76f8\u4fe1\u90fd\u662f\u7f16\u7a0b\u5b66\u4e60\u7231\u597d\u8005\uff0c\u5e0c\u671b\u5728\u8fd9\u91cc\u5b66\u4e60Golang\u76f8\u5173\u7f16\u7a0b\u77e5\u8bc6\u3002\u4e0b\u9762\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u5e26\u5927\u5bb6\u804a\u804a\u300a\u7ea0\u6b63\u5173\u4e8e\u9519\u8bef\u683c\u5f0f\u53c2\u6570\u7684\u201cgo vet\u201d\u8b66\u544a\u300b\uff0c\u4ecb\u7ecd\u4e00\u4e0b\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01<\/p>\n

\u95ee\u9898\u5185\u5bb9
\n <\/p>\n

\u6211\u6709\u4e00\u4e2a\u5305\u542b\u6307\u5411\u53e6\u4e00\u4e2a\u7ed3\u6784\u7684\u6307\u9488\u7684\u7ed3\u6784\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c<\/p>\n

type innerstruct struct {\n    whatever bool\n}\n\ntype outerstruct struct {\n    is *innerstruct\n}<\/pre>\n
\u5982\u679c\u6211\u7528 %+v<\/code> \u6253\u5370\u51fa outerstruct<\/code> \u7684\u5b9e\u4f8b\uff0c\u90a3\u4e48\u5185\u90e8\u7ed3\u6784\u4e0d\u4f1a\u50cf\u5b83\u4e0d\u662f\u6307\u9488\u65f6\u90a3\u6837\u5c55\u5f00\u3002\u6211\u7406\u89e3\u5e76\u63a5\u53d7\u4e3a\u4ec0\u4e48\u4f1a\u8fd9\u6837\uff0c\u4f46\u56e0\u4e3a\u6211\u6ca1\u6709\u4efb\u4f55\u9012\u5f52\u7684\u673a\u4f1a\uff0c\u6240\u4ee5\u6211\u60f3\u6253\u5370\u51fa\u5b8c\u6574\u7684\u5185\u5bb9\u3002<\/p>\n
\u6211\u7a81\u7136\u60f3\u5230\uff0c\u6211\u4e5f\u8bb8\u80fd\u591f\u5728 innerstruct<\/code> \u7684\u6307\u9488\u63a5\u6536\u5668\u4e0a\u5b9e\u73b0 formatter<\/code> \u63a5\u53e3\uff0c\u4ee5\u83b7\u5f97\u6211\u60f3\u8981\u7684\u884c\u4e3a\uff0c\u4e8b\u5b9e\u4e0a\uff0c\u4ee5\u4e0b\u5185\u5bb9\u6b63\u662f\u6211\u60f3\u8981\u7684\uff0c\u81f3\u5c11\u5bf9\u4e8e\u6211\u6240\u9047\u5230\u7684\u60c5\u51b5\uff08\u4e5f\u8bb8\u5728\u67d0\u4e9b\u65b9\u9762\u5b83\u53ef\u80fd\u4f1a\u51fa\u73b0\u4e25\u91cd\u9519\u8bef\uff1b\u8bf7\u544a\u8bc9\u6211\uff01\uff09\uff1a<\/p>\n
func (is *innerstruct) format(s fmt.state, verb rune) {\n    switch verb {\n    case 'v':\n        if s.flag('+') {\n            fmt.fprintf(s, \"&%+v\", *is)\n        } else if s.flag('#') {\n            fmt.fprintf(s, \"&%#v\", *is)\n        } else {\n            fmt.fprintf(s, \"&%v\", *is)\n        }\n    case 's':\n        fmt.fprintf(s, \"&%s\", *is)\n    }\n}<\/pre>\n
\u4f46\u662f\u5f53\u6211\u5728\u4ee3\u7801\u4e0a\u8fd0\u884c go vet<\/code> \u65f6\uff0c\u5b83\u4f1a\u62b1\u6028\uff1a<\/p>\n
.\/thing.go:341: Fprintf format %s has arg *s of wrong type thing.InnerStruct<\/pre>\n
\u662f\u5426\u6709\u66f4\u597d\u7684\u65b9\u6cd5\u6765\u83b7\u53d6\u7ed3\u6784\u7684\u9ed8\u8ba4\u5b57\u7b26\u4e32\u8868\u793a\u5f62\u5f0f\uff0c\u4ee5\u907f\u514d vet<\/code> \u51fa\u73b0\u6b64\u95ee\u9898\uff1f<\/p>\n
fwiw\uff0c\u6211\u5c1d\u8bd5\u4e86 go-spew<\/code>\uff0c\u5e76\u5f97\u5230\u4e86\uff08\u51e0\u4e4e\uff09\u6211\u60f3\u8981\u7684\u786e\u5207\u8f93\u51fa\uff0c\u6240\u4ee5\u6211\u53ef\u80fd\u4f1a\u6cbf\u7740\u8fd9\u6761\u8def\u7ebf\u8d70\u4e0b\u53bb\uff0c\u4f46\u6211\u4ecd\u7136\u60f3\u77e5\u9053\u53ef\u4ee5\u505a\u4ec0\u4e48\uff08\u5982\u679c\u6709\u7684\u8bdd\uff09\u6ee1\u8db3 vet<\/code>\u3002 <\/p>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
\u60a8\u6709\u91cd\u590d\u7684\u540d\u79f0 s *innerstruct<\/code> \u548c s fmt.state<\/code>\u3002 go vet<\/code> \u62b1\u6028\uff0c\u4f60\u6709\u683c\u5f0f\u52a8\u8bcd s<\/code> \u800c\u4e0d\u662f v<\/code>\uff1a fmt.fprintf(s, \"&%s\", *s)<\/code>\u3002<\/p>\n
\u4fee\u6b63\u4f60\u7684\u9519\u522b\u5b57\u3002\u4f8b\u5982\uff0c<\/p>\n
package main\n\nimport (\n    \"fmt\"\n)\n\ntype InnerStruct struct {\n    whatever bool\n}\n\ntype OuterStruct struct {\n    is *InnerStruct\n}\n\nfunc (s *InnerStruct) Format(f fmt.State, verb rune) {\n    switch verb {\n    case 'v':\n        if f.Flag('+') {\n            fmt.Fprintf(f, \"&%+v\", *s)\n        } else if f.Flag('#') {\n            fmt.Fprintf(f, \"&%#v\", *s)\n        } else {\n            fmt.Fprintf(f, \"&%v\", *s)\n        }\n    case 's':\n        fmt.Fprintf(f, \"&%v\", *s)\n    }\n}\n\nfunc main() {}<\/pre>\n
\u6f14\u793a\uff1a<\/p>\n
\u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8eGolang\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5f53\u524d\u4f4d\u7f6e\uff1a > > ...<\/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-207771","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207771","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=207771"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207771\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207771"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207771"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207771"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}