{"id":207385,"date":"2025-07-08T10:43:14","date_gmt":"2025-07-08T02:43:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207385\/"},"modified":"2025-07-08T10:43:14","modified_gmt":"2025-07-08T02:43:14","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8-golang-%e4%b8%ad%e5%8f%96%e6%b6%88%e8%ae%be%e7%bd%ae%e5%9c%a8%e5%91%bd%e4%bb%a4%e8%a1%8c%e4%b8%8a%e8%ae%bf%e9%97%ae%e7%9a%84%e6%a0%87%e5%bf%97%e4%bb%a5%e8%bf%9b%e8%a1%8c","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207385\/","title":{"rendered":"\u5982\u4f55\u5728 GoLang \u4e2d\u53d6\u6d88\u8bbe\u7f6e\u5728\u547d\u4ee4\u884c\u4e0a\u8bbf\u95ee\u7684\u6807\u5fd7\u4ee5\u8fdb\u884c\u6d4b\u8bd5"},"content":{"rendered":"

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

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u5982\u4f55\u5728 GoLang \u4e2d\u53d6\u6d88\u8bbe\u7f6e\u5728\u547d\u4ee4\u884c\u4e0a\u8bbf\u95ee\u7684\u6807\u5fd7\u4ee5\u8fdb\u884c\u6d4b\u8bd5<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-22 08:54:34<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u6211\u4eec\u8981\u52aa\u529b\u5b66\u4e60\u5566\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\u300a\u5982\u4f55\u5728 GoLang \u4e2d\u53d6\u6d88\u8bbe\u7f6e\u5728\u547d\u4ee4\u884c\u4e0a\u8bbf\u95ee\u7684\u6807\u5fd7\u4ee5\u8fdb\u884c\u6d4b\u8bd5\u300b<\/span>\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4e0b\u6587\u4e2d\u7684\u5185\u5bb9\u6211\u4eec\u4e3b\u8981\u4f1a\u6d89\u53ca\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5728\u9605\u8bfb\u672c\u6587\u8fc7\u7a0b\u4e2d\u6709\u9047\u5230\u4e0d\u6e05\u695a\u7684\u5730\u65b9\uff0c\u6b22\u8fce\u7559\u8a00\u5440\uff01\u6211\u4eec\u4e00\u8d77\u8ba8\u8bba\uff0c\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n

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

\u6211\u6b63\u5728\u5c1d\u8bd5\u8fd0\u884c\u6d4b\u8bd5\uff0c\u6bcf\u6b21\u4f7f\u7528\u4e0d\u540c\u7684\u53c2\u6570\u591a\u6b21\u8c03\u7528\u540c\u4e00\u51fd\u6570\u3002\u8fd9\u662f\u4e00\u4e2a\u63a5\u53d7\u4e0d\u540c\u547d\u4ee4\u884c\u6807\u5fd7\u7684\u5e94\u7528\u7a0b\u5e8f\u3002\u5982\u679c\u672a\u63d0\u4f9b\u547d\u4ee4\u884c\u6807\u5fd7\uff0c\u5219\u4f7f\u7528\u9ed8\u8ba4\u503c\u3002<\/p>\n

flagset = make(map[string]bool)\nflagset[\"flag1\"] = false\nflagset[\"flag2\"] = false\nflagset[\"flag3\"] = false\nflagset[\"flag4\"] = false\nfunc loadcommandlinearguments(args []string) error{\n        err := flag.commandline.parse(args)\n        \/*do error handling\n         *\/\n       flag.visit(func(f *flag.flag) { flagset[f.name] = true })\n       \/\/ iterate through all the flags and set their default values whatever was not passed on the commandline.\n}\n\nfunc resetflags(){\n\/* reset flag variables to their original default values and set map values to false *\/\nflagset[\"flag1\"] = false\nflagset[\"flag2\"] = false\nflagset[\"flag3\"] = false\nflagset[\"flag4\"] = false\n}<\/pre>\n
\u6211\u6709\u4e0d\u540c\u7684\u6d4b\u8bd5\u51fd\u6570\uff0c\u6bcf\u4e2a\u51fd\u6570\u90fd\u4e3a\u6d4b\u8bd5\u63d0\u4f9b\u4e0d\u540c\u7684\u6807\u5fd7\u3002\u4f8b\u5982\uff1a\u8fd9\u5c31\u662f\u6211\u7684\u6d4b\u8bd5\u6587\u4ef6\u7684\u6837\u5b50<\/p>\n
func TestFlag1(t *testing.T) {\n   resetFlags()\n   err := LoadCommandLineArguments([]string{\"-flag1=somevalue1\"})\n}\nfunc TestFlag2(t *testing.T) {\nresetFlags()\nerr := LoadCommandLineArguments([]string{\"-flag2=somevalue2\"})\n}\nfunc TestFlag3(t *testing.T) {\nresetFlags()\nerr := LoadCommandLineArguments([]string{\"-flag3=somevalue3\"})\n}\nfunc TestFlag4(t *testing.T) {\nresetFlags()\nerr := LoadCommandLineArguments([]string{\"\"})\n}<\/pre>\n
\u6bcf\u5f53\u6211\u5355\u72ec\u8fd0\u884c\u6d4b\u8bd5\u6587\u4ef6\u548c\u6bcf\u4e2a\u5355\u5143\u6d4b\u8bd5\u65f6\uff0c\u5b83\u4eec\u4f3c\u4e4e\u90fd\u5de5\u4f5c\u6b63\u5e38\u3002 \u4f46\u662f\u5f53\u6211\u4e00\u8d77\u8fd0\u884c\u6574\u4e2a\u6587\u4ef6\u6d4b\u8bd5\u6587\u4ef6\u65f6\uff0c\u5f53\u5b83\u5230\u8fbe testflag4 \u65f6\uff0c\u5728 loadcommandlinearguments \u4e2d\uff0c\u5b83\u4f1a\u8bbf\u95ee\u6240\u6709\u6807\u5fd7\u5e76\u8ba4\u4e3a\u6240\u6709\u6807\u5fd7\u90fd\u5728\u547d\u4ee4\u884c\u4e0a\u4f20\u9012\uff0c\u5373\u4f7f\u6211\u5728\u6bcf\u4e2a\u6d4b\u8bd5\u51fd\u6570\u5f00\u59cb\u65f6\u91cd\u7f6e\u5b83\u4eec.<\/p>\n
\u5728 testflag1 \u4e2d\uff0c\u5b83\u8ba4\u4e3a flag1 \u5df2\u901a\u8fc7\u3002 <\/p>\n
\u5728 testflag2 \u4e2d\uff0c\u5b83\u8ba4\u4e3a flag1 \u548c flag2 \u5df2\u901a\u8fc7\u3002 <\/p>\n
\u5728testflag3\u4e2d\uff0c\u5b83\u8ba4\u4e3aflag1\u3001flag2\u3001flag3\u901a\u8fc7\u4e86\u3002 <\/p>\n
\u540c\u6837\uff0c\u5728testflag4\u4e2d\uff0c\u5b83\u8ba4\u4e3aflag1\u4e5f\u901a\u8fc7\u4e86\uff0cflag2\u4e5f\u901a\u8fc7\u4e86\uff0cflag3\u4e5f\u901a\u8fc7\u4e86\uff0c\u800c\u6211\u4ec0\u4e48\u4e5f\u6ca1\u901a\u8fc7\u3002\u6211\u5e0c\u671b\u8fd9\u4e2a\u6d4b\u8bd5\u6ca1\u6709\u901a\u8fc7\u4efb\u4f55\u547d\u4ee4\u884c\u6807\u5fd7\u3002 flags.visit \u51fd\u6570\u5bf9\u4e8e\u4efb\u4f55\u6807\u5fd7\u90fd\u4e0d\u5e94\u8be5\u4e3a true\u3002<\/p>\n
\u6211\u77e5\u9053\u901a\u8fc7\u5c06\u5730\u56fe\u503c\u8bbe\u7f6e\u4e3a false\uff0c\u6211\u5b9e\u9645\u4e0a\u5e76\u6ca1\u6709\u53d6\u6d88\u8bbe\u7f6e\u4f20\u9012\u7684\u547d\u4ee4\u884c\u503c\uff0c\u4f46\u662f\u8be5\u600e\u4e48\u505a\u5462\uff1f <\/p>\n
\u6709\u6ca1\u6709\u529e\u6cd5\u5728 golang \u4e2d\u53d6\u6d88\u8bbf\u95ee\/\u53d6\u6d88\u8bbe\u7f6e<\/strong>\u547d\u4ee4\u884c\u6807\u5fd7\uff1f \u4efb\u4f55\u5e2e\u52a9\u5c06\u4e0d\u80dc\u611f\u6fc0\u3002<\/p>\n
\u8c22\u8c22\u3002<\/p>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
\u57fa\u4e8e \uff0c\u8fd9\u5e94\u8be5\u53ef\u4ee5\u5de5\u4f5c\uff08\u60a8\u9700\u8981\u5c06\u64cd\u4f5c\u7cfb\u7edf\u6dfb\u52a0\u5230\u5bfc\u5165\u4e2d\uff09\uff1a<\/p>\n
flag.commandline = flag.newflagset(os.args[0], flag.exitonerror) \/\/flags are now reset<\/pre>\n
\u6b64\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u98ce\u683c\u95ee\u9898\uff1a<\/p>\n
\u5f53\u672a\u627e\u5230\u952e\u65f6\uff0c\u6620\u5c04\u4f1a\u8fd4\u56de\u7c7b\u578b\u7684\u96f6\u503c\u3002\u7c7b\u578b\u7684\u96f6\u503c\u4e3a int<\/code> \u7684 0<\/code>\u3001\"\"<\/code> \u7684 string<\/code>\u3001false<\/code> \u7684 bool<\/code> \u7b49\u3002<\/p>\n
\u56e0\u6b64\u6240\u6709\u8fd9\u4e9b\u521d\u59cb\u5316\/\u91cd\u7f6e\u884c\u90fd\u53ef\u4ee5\u5220\u9664\uff1a<\/p>\n
flagset = make(map[string]bool)\n\/\/ the initialization lines are not needed; bool already initalizes to false:\n\/\/flagset[\"flag1\"] = false\n\/\/...\n\nfunc LoadCommandLineArguments(args []string) error{\n   \/\/...\n}\n\nfunc resetFlags(){\n   \/* Reset flag variables *\/\n   flagset = make(map[string]bool)\/\/just make a new map\n}<\/pre>\n
\u4eca\u5929\u5173\u4e8e\u300a\u5982\u4f55\u5728 GoLang \u4e2d\u53d6\u6d88\u8bbe\u7f6e\u5728\u547d\u4ee4\u884c\u4e0a\u8bbf\u95ee\u7684\u6807\u5fd7\u4ee5\u8fdb\u884c\u6d4b\u8bd5\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u5185\u5bb9\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-207385","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207385","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=207385"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207385\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207385"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207385"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207385"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}