{"id":207258,"date":"2025-07-08T11:58:08","date_gmt":"2025-07-08T03:58:08","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207258\/"},"modified":"2025-07-08T11:58:08","modified_gmt":"2025-07-08T03:58:08","slug":"%e5%a6%82%e4%bd%95%e9%80%89%e6%8b%a9%e5%9c%a8%e8%bf%90%e8%a1%8c%e6%97%b6%e6%9b%b4%e6%96%b0%e5%93%aa%e4%b8%aa%e7%bb%93%e6%9e%84%e6%88%90%e5%91%98%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207258\/","title":{"rendered":"\u5982\u4f55\u9009\u62e9\u5728\u8fd0\u884c\u65f6\u66f4\u65b0\u54ea\u4e2a\u7ed3\u6784\u6210\u5458\uff1f"},"content":{"rendered":"

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

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u5982\u4f55\u9009\u62e9\u5728\u8fd0\u884c\u65f6\u66f4\u65b0\u54ea\u4e2a\u7ed3\u6784\u6210\u5458\uff1f<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-21 10:12:32<\/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\u9009\u62e9\u5728\u8fd0\u884c\u65f6\u66f4\u65b0\u54ea\u4e2a\u7ed3\u6784\u6210\u5458\uff1f\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

\u5047\u8bbe\u6211\u5728 go \u4e2d\u6709\u4e00\u4e2a\u5982\u4e0b\u6240\u793a\u7684\u7ed3\u6784\uff1a<\/p>\n

LastUpdate struct {\n     Name string `yaml:\"name\"`\n     Address string `yaml:\"address\"`\n     Phone string `yaml:\"phone\"`\n}<\/pre>\n
\u73b0\u5728\u5047\u8bbe\u6211\u60f3\u521b\u5efa\u4e00\u4e2a\u63a5\u53d7\u5b57\u6bb5\u540d\u79f0\uff08\u4f8b\u5982\u201c\u7535\u8bdd\u201d\uff09\u7684\u51fd\u6570\uff0c\u7136\u540e\u5c06\u8be5\u5b57\u6bb5\u66f4\u65b0\u4e3a\u4e00\u4e2a\u503c\uff0c\u4f8b\u5982\u4eca\u5929\u7684\u65e5\u671f\u3002<\/p>\n
\u5982\u4f55\u6784\u5efa\u51fd\u6570\u4ee5\u63a5\u53d7\u5b57\u6bb5\u540d\u79f0\u5e76\u66f4\u65b0\u7ed3\u6784\u4e2d\u7684\u8be5\u5b57\u6bb5\uff1f<\/p>\n
\u6211\u77e5\u9053\u6211\u53ef\u4ee5\u4e3a\u6bcf\u4e2a\u573a\u666f\u6267\u884c\u4e00\u4e2a if \u5b50\u53e5\uff08if field == “phone”\uff09{var.lastupdate.phone = time.now().date()}\uff0c\u4f46\u6211\u60f3\u6784\u5efa\u8fd9\u4e2a\u51fd\u6570\uff0c\u8fd9\u6837\u6211\u4ee5\u540e\u5c31\u4e0d\u5fc5\u6bcf\u6b21\u5411\u8be5\u7ed3\u6784\u6dfb\u52a0\u65b0\u6210\u5458\u65f6\u90fd\u6dfb\u52a0 if \u5b50\u53e5\u3002\u60f3\u6cd5\uff1f<\/p>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
\u4f7f\u7528 \u5305\u6309\u540d\u79f0\u8bbe\u7f6e\u5b57\u6bb5\u3002<\/p>\n
\/\/ setfieldbyname sets field with given name to specified value.\n\/\/ the structptr argument must be a pointer to a struct. the\n\/\/ value argument must be assignable to the field.\nfunc setfieldbyname(structptr interface{}, name string, value interface{}) error {\n\n    v := reflect.valueof(structptr)\n    v = v.elem()            \/\/ deference pointer\n    v = v.fieldbyname(name) \/\/ get field with specified name\n\n    if !v.isvalid() {\n        return errors.new(\"field not found\")\n    }\n\n    v.set(reflect.valueof(value))\n\n    return nil\n}<\/pre>\n
\u50cf\u8fd9\u6837\u4f7f\u7528\u5b83\uff1a<\/p>\n
var lu LastUpdate\nsetFieldByName(&lu, \"Name\", \"Russ Cox\")<\/pre>\n<\/p>\n
\u4eca\u5929\u5173\u4e8e\u300a\u5982\u4f55\u9009\u62e9\u5728\u8fd0\u884c\u65f6\u66f4\u65b0\u54ea\u4e2a\u7ed3\u6784\u6210\u5458\uff1f\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\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-207258","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207258","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=207258"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207258\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207258"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207258"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207258"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}