{"id":207844,"date":"2025-07-08T14:08:03","date_gmt":"2025-07-08T06:08:03","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207844\/"},"modified":"2025-07-08T14:08:03","modified_gmt":"2025-07-08T06:08:03","slug":"go%e4%b8%ad%e5%a6%82%e4%bd%95%e6%b8%85%e9%99%a4%e6%89%a7%e8%a1%8c%e7%bc%93%e5%ad%98","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207844\/","title":{"rendered":"go\u4e2d\u5982\u4f55\u6e05\u9664\u6267\u884c\u7f13\u5b58"},"content":{"rendered":"<p><b><\/b> <\/p>\n<p>\u5f53\u524d\u4f4d\u7f6e\uff1a <span>&gt;<\/span> <span>&gt;<\/span> <span>&gt;<\/span> <span>&gt;<\/span> <span>go\u4e2d\u5982\u4f55\u6e05\u9664\u6267\u884c\u7f13\u5b58<\/span><\/p>\n<p><span>\u6765\u6e90\uff1astackoverflow<\/span><br \/>\n<span>2024-04-25 23:45:36<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u54c8\u55bd\uff01\u4eca\u5929\u5fc3\u8840\u6765\u6f6e\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300ago\u4e2d\u5982\u4f55\u6e05\u9664\u6267\u884c\u7f13\u5b58\u300b<\/span>\uff0c\u60f3\u5fc5\u5927\u5bb6\u5e94\u8be5\u5bf9<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">Golang<\/span>\u90fd\u4e0d\u964c\u751f\u5427\uff0c\u90a3\u4e48\u9605\u8bfb\u672c\u6587\u5c31\u90fd\u4e0d\u4f1a\u5f88\u56f0\u96be\uff0c\u4ee5\u4e0b\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\uff0c\u82e5\u662f\u4f60\u6b63\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">Golang<\/span>\uff0c\u5343\u4e07\u522b\u9519\u8fc7\u8fd9\u7bc7\u6587\u7ae0~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u4f60\uff01<\/p>\n<p> \u95ee\u9898\u5185\u5bb9<br \/>\n <\/p>\n<p>\u5f53\u6211\u4f7f\u7528flag\u5305\u65f6<\/p>\n<pre>\/\/ main.go\n\nimport (\n  ...\n  \"flag\"  \n)\n\nfunc main() {\n  ...\n  flag.parse()\n\n  switch flag.arg(0) {\n  case \"dosomething1\":\n    ...\n  case \"dosomething2\":\n    ...\n  }\n\n}<\/pre>\n<p>\u5982\u679c dosomething1 \u53c2\u6570\u4e3a\u6211\u6253\u5370\u4e00\u4e9b\u9519\u8bef\u6d88\u606f\uff0c\u65e0\u8bba\u6211\u4fee\u590d\u6e90\u4ee3\u7801\uff0c\u5b83\u90fd\u65e0\u6cd5\u5220\u9664\u65e7\u7684\u9519\u8bef\u4ee3\u7801\u5e76\u518d\u6b21\u7f16\u8bd1\u3002<\/p>\n<pre>\/\/ command-line\n\n# go build .\/main.go\n# .\/main doSomething1\n# error doSomething1 can not work\n\n-- I fix my code\n\n# .\/main doSomething1\n# error doSomething1 can not work\n\n-- the error message also show me again\n-- I have to delete main and build again\n\n# rm .\/main\n# go build .\/main.go\n# .\/main.go doSomething1\n# doSomething1 now can work<\/pre>\n<p> <\/p>\n<h2>\u89e3\u51b3\u65b9\u6848<\/h2>\n<p> <\/p>\n<p>go \u662f \u3002\u5f53\u60a8\u8fd0\u884c <code>go build<\/code> \u65f6\uff0c\u5b83\u5c06\u7f16\u8bd1\u60a8\u7684\u6e90\u4ee3\u7801\u5e76\u521b\u5efa\u53ef\u6267\u884c\u4e8c\u8fdb\u5236\u6587\u4ef6\u3002\u8fd9\u662f\u6267\u884c <code> \u65f6\u8fd0\u884c\u7684\u5185\u5bb9\u3002\/main dosomething1<\/code>\u3002<\/p>\n<p>\u5f53\u60a8\u66f4\u6539\u6e90\u4ee3\u7801\u5e76\u8fd0\u884c <code>.\/main dosomething1<\/code> \u65f6\uff0c\u60a8\u4e0d\u4f1a\u518d\u6b21\u7f16\u8bd1\uff0c\u53ea\u9700\u8fd0\u884c\u4e4b\u524d\u6784\u5efa\u7684\uff08\u4e14\u672a\u66f4\u6539\u7684\uff09\u4e8c\u8fdb\u5236\u6587\u4ef6\u3002<\/p>\n<p>\u8981\u5feb\u901f\u6d4b\u8bd5\u66f4\u6539\uff0c\u8bf7\u6539\u7528 <code>go run<\/code>\uff1a<\/p>\n<pre>go run main.go doSomething1<\/pre>\n<p>\u8fd9\u5c06\u59cb\u7ec8\u7f16\u8bd1\u60a8\u7684\u6e90\u4ee3\u7801\uff0c\u5728\u4e34\u65f6\u6587\u4ef6\u5939\u4e2d\u6784\u5efa\u4e8c\u8fdb\u5236\u6587\u4ef6\uff0c\u542f\u52a8\u5b83\u5e76\u5728\u5e94\u7528\u7a0b\u5e8f\u9000\u51fa\u540e\u6e05\u9664\u5b83\u3002<\/p>\n<p>\u8be6\u60c5\u8bf7\u89c1<\/p>\n<p>\u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300ago\u4e2d\u5982\u4f55\u6e05\u9664\u6267\u884c\u7f13\u5b58\u300b\uff0c\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u7ed9\u5927\u5bb6\u5206\u4eab\u66f4\u591aGolang\u77e5\u8bc6\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f53\u524d\u4f4d\u7f6e\uff1a &gt; &gt; &#46;&#46;&#46;<\/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-207844","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207844","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=207844"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207844\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207844"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207844"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207844"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}