{"id":207486,"date":"2025-07-08T09:08:42","date_gmt":"2025-07-08T01:08:42","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207486\/"},"modified":"2025-07-08T09:08:42","modified_gmt":"2025-07-08T01:08:42","slug":"%e4%bd%bf%e7%94%a8reflect%ef%bc%8c%e5%a6%82%e4%bd%95%e5%8a%a8%e6%80%81%e5%88%9b%e5%bb%bastructtype%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207486\/","title":{"rendered":"\u4f7f\u7528reflect\uff0c\u5982\u4f55\u52a8\u6001\u521b\u5efastruct\u201ctype\u201d\uff1f"},"content":{"rendered":"

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

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u4f7f\u7528reflect\uff0c\u5982\u4f55\u52a8\u6001\u521b\u5efastruct\u201ctype\u201d\uff1f<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-22 23:27:34<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u600e\u4e48\u5165\u95e8Golang\u7f16\u7a0b\uff1f\u9700\u8981\u5b66\u4e60\u54ea\u4e9b\u77e5\u8bc6\u70b9\uff1f\u8fd9\u662f\u65b0\u624b\u4eec\u521a\u63a5\u89e6\u7f16\u7a0b\u65f6\u5e38\u89c1\u7684\u95ee\u9898\uff1b\u4e0b\u9762\u5c31\u6765\u7ed9\u5927\u5bb6\u6574\u7406\u5206\u4eab\u4e00\u4e9b\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u80fd\u591f\u7ed9\u521d\u5b66\u8005\u4e00\u4e9b\u5e2e\u52a9\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u4ecb\u7ecd\u300a\u4f7f\u7528reflect\uff0c\u5982\u4f55\u52a8\u6001\u521b\u5efastruct\u201ctype\u201d\uff1f\u300b\uff0c\u6d89\u53ca\u5230\uff0c\u6709\u9700\u8981\u7684\u53ef\u4ee5\u6536\u85cf\u4e00\u4e0b<\/p>\n

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

\u8003\u8651\u4ee5\u4e0b\u7ed3\u6784\uff1a<\/p>\n

type foo struct{}\n\nfunc (f *foo) foo() {\n    fmt.println(\"hello\")\n}<\/pre>\n
\u4f7f\u7528\u53cd\u5c04\u6211\u60f3\u751f\u6210\u4e00\u4e2a\u91cd\u5199\u4e00\u7ec4\u65b9\u6cd5\u7684\u81ea\u5b9a\u4e49\u7ed3\u6784\u7c7b\u578b\u3002 \u624b\u52a8\u5b8c\u6210\u5de5\u4f5c\u65f6\u6211\u60f3\u505a\u7684\u662f\uff1a<\/p>\n
type edit struct{\n    foo\n}\n\nfunc (e *edit) foo() {\n    e.foo.foo()\n    fmt.println(\"world\")\n}<\/pre>\n
\u4f46\u6211\u4e0d\u60f3\u624b\u52a8\u7f16\u5199\u6b64\u5185\u5bb9\uff0c\u800c\u662f\u60f3\u521b\u5efa\u4e00\u4e2a\u51fd\u6570\uff0c\u4e3a\u4efb\u4f55\u7ed9\u5b9a\u7684\u7ed3\u6784\u81ea\u52a8\u6267\u884c\u6b64\u7c7b\u8986\u76d6\u3002<\/p>\n
\u6211\u77e5\u9053\u6211\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u5b9e\u4f8b\u5316\u4e00\u4e2a\u7ed3\u6784\uff1a<\/p>\n
res := reflect.New(reflect.TypeOf(origin))<\/pre>\n
\u4f46\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u65e0\u6cd5\u7f16\u8f91\u65b9\u6cd5\u3002<\/p>\n
\u90a3\u4e48\u5982\u4f55\u4f7f\u7528 reflect \u521b\u5efa\u4e00\u4e2a\u5305\u88c5\u73b0\u6709\u7c7b\u578b\u7684\u7ed3\u6784\u7c7b\u578b\uff0c\u5982\u4e0a\u9762\u6240\u8ff0\uff1f<\/p>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
\u60a8\u53ef\u4ee5\u4f7f\u7528 \u5b9e\u73b0\u4e0e\u60a8\u6240\u8981\u6c42\u7684\u6781\u5176\u76f8\u4f3c\u7684\u76ee\u6807\u3002\u60a8\u53ef\u4ee5\u6267\u884c\u5982\u4e0b\u64cd\u4f5c\uff1a<\/p>\n
package main\n\nimport (\n    \"fmt\"\n)\n\ntype Foo struct {\n    sayHelloAgain func()\n}\n\nfunc (f *Foo) SayHello() { \n    fmt.Print(\"Hello,\")\n    f.sayHelloAgain() \n}\n\nfunc main() {\n    edit := struct{Foo}{}\n    edit.sayHelloAgain = func(){ fmt.Println(\" World!\") }\n    edit.SayHello()\n\n}<\/pre>\n<\/p>\n
\u5982\u60a8\u6240\u89c1\uff0c\u60a8\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u533f\u540d\u7ed3\u6784\u4f53\uff0c\u5b83\u5c06\u80fd\u591f\u8c03\u7528 sayhello<\/code> \u51fd\u6570\uff0c\u7136\u540e\u8be5\u51fd\u6570\u8c03\u7528\u63a5\u6536\u8005\u52a8\u6001\u8bbe\u7f6e\u7684 sayhelloagain<\/code> \u65b9\u6cd5\u3002 <\/p>\n
\u6211\u8ba4\u4e3a\u8fd9\u5c06\u662f\u60a8\u6700\u63a5\u8fd1\u76ee\u6807\u7684\uff0c\u5e76\u4e14\u6309\u7167\u60a8\u7684\u8981\u6c42\u5de5\u4f5c\uff08\u6ca1\u6709 relection<\/code>\uff09<\/p>\n
\u4ee5\u4e0a\u5c31\u662f\u300a\u4f7f\u7528reflect\uff0c\u5982\u4f55\u52a8\u6001\u521b\u5efastruct\u201ctype\u201d\uff1f\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-207486","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207486","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=207486"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207486\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207486"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207486"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207486"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}