{"id":207130,"date":"2025-07-08T11:05:21","date_gmt":"2025-07-08T03:05:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207130\/"},"modified":"2025-07-08T11:05:21","modified_gmt":"2025-07-08T03:05:21","slug":"%e5%a6%82%e4%bd%95%e6%96%ad%e8%a8%80%e7%b1%bb%e5%9e%8b%e6%98%af%e6%8c%87%e5%90%91golang%e4%b8%ad%e7%9a%84%e6%8e%a5%e5%8f%a3%e7%9a%84%e6%8c%87%e9%92%88","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207130\/","title":{"rendered":"\u5982\u4f55\u65ad\u8a00\u7c7b\u578b\u662f\u6307\u5411golang\u4e2d\u7684\u63a5\u53e3\u7684\u6307\u9488"},"content":{"rendered":"

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

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u5982\u4f55\u65ad\u8a00\u7c7b\u578b\u662f\u6307\u5411golang\u4e2d\u7684\u63a5\u53e3\u7684\u6307\u9488<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-20 11:09:24<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u201c\u7eb5\u6709\u75be\u98ce\u6765\uff0c\u4eba\u751f\u4e0d\u8a00\u5f03\u201d\uff0c\u8fd9\u53e5\u8bdd\u9001\u7ed9\u6b63\u5728\u5b66\u4e60Golang<\/span>\u7684\u670b\u53cb\u4eec\uff0c\u4e5f\u5e0c\u671b\u5728\u9605\u8bfb\u672c\u6587\u300a\u5982\u4f55\u65ad\u8a00\u7c7b\u578b\u662f\u6307\u5411golang\u4e2d\u7684\u63a5\u53e3\u7684\u6307\u9488\u300b<\/span>\u540e\uff0c\u80fd\u591f\u771f\u7684\u5e2e\u52a9\u5230\u5927\u5bb6\u3002\u6211\u4e5f\u4f1a\u5728\u540e\u7eed\u7684\u6587\u7ae0\u4e2d\uff0c\u9646\u7eed\u66f4\u65b0Golang<\/span>\u76f8\u5173\u7684\u6280\u672f\u6587\u7ae0\uff0c\u6709\u597d\u7684\u5efa\u8bae\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u975e\u5e38\u611f\u8c22\uff01<\/p>\n

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

\u6211\u65ad\u8a00\u6307\u5411\u7ed3\u6784\u4f53\u7684\u6307\u9488\u7684\u7c7b\u578b\u6b63\u5728golang\u4e2d\u5b9e\u73b0\u4e00\u4e2a\u63a5\u53e3\uff0c\u5e76\u4e14\u5728\u4e0b\u9762\u7684\u4ee3\u7801\u793a\u4f8b\u4e2d\u6709\u4e9b\u4e1c\u897f\u6211\u4e0d\u660e\u767d\uff1a<\/p>\n

package main\n\nimport (\n    \"fmt\"\n)\n\ntype MyStruct struct {\n    Name string\n}\n\nfunc (m *MyStruct) MyFunc() {\n    m.Name = \"bar\"\n}\n\ntype MyInterface interface {\n    MyFunc()\n}\n\nfunc main() {\n    x := &MyStruct{\n        Name: \"foo\",\n    }\n    var y interface{}\n    y = x\n    _, ok := y.(MyInterface)\n    if !ok {\n        fmt.Println(\"Not MyInterface\")\n    } else {\n        fmt.Println(\"It is MyInterface\")\n    }\n}<\/pre>\n
\u6211\u671f\u671b\u6267\u884c _, ok := y.(*myinterface)<\/code> \u56e0\u4e3a y<\/code> \u662f\u6307\u5411 mystruct<\/code> \u7684\u6307\u9488\u3002\u4e3a\u4ec0\u4e48\u6211\u4e0d\u80fd\u65ad\u8a00\u5b83\u662f\u4e00\u4e2a\u6307\u9488\uff1f<\/p>\n
 <\/p>\n
\u6b63\u786e\u7b54\u6848<\/h2>\n
 <\/p>\n
\u7c7b\u578b\u65ad\u8a00\u7528\u4e8e\u67e5\u627e\u63a5\u53e3\u4e2d\u5305\u542b\u7684\u5bf9\u8c61\u7684\u7c7b\u578b\u3002\u56e0\u6b64\uff0cy.(myinterface)<\/code> \u53ef\u4ee5\u5de5\u4f5c\uff0c\u56e0\u4e3a\u63a5\u53e3 y<\/code> \u4e2d\u5305\u542b\u7684\u5bf9\u8c61\u662f *mystruct<\/code>\uff0c\u5e76\u4e14\u5b83\u5b9e\u73b0\u4e86 myinterface<\/code>\u3002\u4f46\u662f\uff0c *myinterface<\/code> \u4e0d\u662f\u63a5\u53e3\uff0c\u800c\u662f\u6307\u5411\u63a5\u53e3\u7684\u6307\u9488\uff0c\u56e0\u6b64\u60a8\u65ad\u8a00\u7684\u662f y<\/code> \u662f\u5426\u662f *myinterface<\/code>\uff0c\u800c\u4e0d\u662f y<\/code> \u662f\u5426\u5b9e\u73b0 myinterface<\/code>\u3002\u53ea\u6709\u6ee1\u8db3\u4ee5\u4e0b\u6761\u4ef6\uff0c\u8fd9\u624d\u4f1a\u6210\u529f\uff1a<\/p>\n
var x MyInterface\nvar y interface{}\ny=&x\n_, ok := y.(*MyInterface)<\/pre>\n
\u4ee5\u4e0a\u5c31\u662f\u300a\u5982\u4f55\u65ad\u8a00\u7c7b\u578b\u662f\u6307\u5411golang\u4e2d\u7684\u63a5\u53e3\u7684\u6307\u9488\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/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-207130","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207130","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=207130"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207130\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207130"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207130"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207130"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}