{"id":57780,"date":"2024-10-10T21:04:22","date_gmt":"2024-10-10T13:04:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/57780\/"},"modified":"2024-10-10T21:04:22","modified_gmt":"2024-10-10T13:04:22","slug":"go%e6%95%99%e7%a8%8b-go-%e8%aa%9e%e8%a8%80-switch-case-%e8%aa%9e%e5%8f%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/57780\/","title":{"rendered":"GO\u6559\u7a0b: Go \u8a9e\u8a00 switch case \u8a9e\u53e5"},"content":{"rendered":"

GO\u6559\u7a0b: Go \u8a9e\u8a00 switch case \u8a9e\u53e5<\/h1>\n

\u5728 Go \u8a9e\u8a00\u4e2d\uff0cswitch \u8a9e\u53e5\u662f\u4e00\u7a2e\u63a7\u5236\u7d50\u69cb\uff0c\u7528\u65bc\u6839\u64da\u4e0d\u540c\u7684\u689d\u4ef6\u57f7\u884c\u4e0d\u540c\u7684\u7a0b\u5f0f\u78bc\u5340\u584a\u3002\u9019\u7a2e\u8a9e\u53e5\u7684\u4f7f\u7528\u53ef\u4ee5\u4f7f\u7a0b\u5f0f\u78bc\u66f4\u52a0\u7c21\u6f54\u548c\u6613\u65bc\u95b1\u8b80\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e Go \u8a9e\u8a00\u4e2d\u7684 switch case \u8a9e\u53e5\uff0c\u5305\u62ec\u5176\u57fa\u672c\u8a9e\u6cd5\u3001\u4f7f\u7528\u7bc4\u4f8b\u4ee5\u53ca\u4e00\u4e9b\u9032\u968e\u7279\u6027\u3002<\/p>\n

\u57fa\u672c\u8a9e\u6cd5<\/h2>\n

Go \u8a9e\u8a00\u7684 switch \u8a9e\u53e5\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n

switch \u8868\u9054\u5f0f {\ncase \u503c1:\n    \/\/ \u7576\u8868\u9054\u5f0f\u7b49\u65bc\u503c1\u6642\u57f7\u884c\u7684\u7a0b\u5f0f\u78bc\ncase \u503c2:\n    \/\/ \u7576\u8868\u9054\u5f0f\u7b49\u65bc\u503c2\u6642\u57f7\u884c\u7684\u7a0b\u5f0f\u78bc\ndefault:\n    \/\/ \u7576\u8868\u9054\u5f0f\u4e0d\u7b49\u65bc\u4efb\u4f55 case \u6642\u57f7\u884c\u7684\u7a0b\u5f0f\u78bc\n}<\/code><\/pre>\n
\u5728\u9019\u88e1\uff0c\u8868\u9054\u5f0f\u53ef\u4ee5\u662f\u4efb\u4f55\u6709\u6548\u7684 Go \u8868\u9054\u5f0f\uff0c\u800c case \u5f8c\u9762\u8ddf\u96a8\u7684\u503c\u5247\u662f\u8981\u9032\u884c\u6bd4\u8f03\u7684\u5e38\u91cf\u3002\u5982\u679c\u6c92\u6709\u4efb\u4f55 case \u5339\u914d\uff0c\u5247\u6703\u57f7\u884c default \u5340\u584a\uff08\u5982\u679c\u6709\u7684\u8a71\uff09\u3002<\/p>\n
\u7bc4\u4f8b<\/h2>\n
\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u7bc4\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528 switch \u8a9e\u53e5\u4f86\u6839\u64da\u6578\u5b57\u8f38\u51fa\u5c0d\u61c9\u7684\u661f\u671f\u5e7e\uff1a<\/p>\n
package main\n\nimport \"fmt\"\n\nfunc main() {\n    day := 3\n\n    switch day {\n    case 1:\n        fmt.Println(\"\u661f\u671f\u4e00\")\n    case 2:\n        fmt.Println(\"\u661f\u671f\u4e8c\")\n    case 3:\n        fmt.Println(\"\u661f\u671f\u4e09\")\n    case 4:\n        fmt.Println(\"\u661f\u671f\u56db\")\n    case 5:\n        fmt.Println(\"\u661f\u671f\u4e94\")\n    case 6:\n        fmt.Println(\"\u661f\u671f\u516d\")\n    case 7:\n        fmt.Println(\"\u661f\u671f\u65e5\")\n    default:\n        fmt.Println(\"\u7121\u6548\u7684\u65e5\u5b50\")\n    }\n}<\/code><\/pre>\n
\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u8b8a\u6578 day \u7684\u503c\u70ba 3\uff0c\u56e0\u6b64\u7a0b\u5f0f\u5c07\u8f38\u51fa\u300c\u661f\u671f\u4e09\u300d\u3002<\/p>\n
\u591a\u500b case<\/h2>\n
Go \u8a9e\u8a00\u7684 switch \u8a9e\u53e5\u5141\u8a31\u5728\u540c\u4e00\u500b case \u4e2d\u5217\u51fa\u591a\u500b\u503c\uff0c\u9019\u6a23\u53ef\u4ee5\u7c21\u5316\u7a0b\u5f0f\u78bc\u3002\u4f8b\u5982\uff1a<\/p>\n
switch day {\ncase 1, 2, 3:\n    fmt.Println(\"\u5de5\u4f5c\u65e5\")\ncase 6, 7:\n    fmt.Println(\"\u9031\u672b\")\ndefault:\n    fmt.Println(\"\u7121\u6548\u7684\u65e5\u5b50\")\n}<\/code><\/pre>\n
\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u7576 day \u7684\u503c\u70ba 1\u30012 \u6216 3 \u6642\uff0c\u7a0b\u5f0f\u5c07\u8f38\u51fa\u300c\u5de5\u4f5c\u65e5\u300d\u3002\u5982\u679c day \u7684\u503c\u70ba 6 \u6216 7\uff0c\u5247\u8f38\u51fa\u300c\u9031\u672b\u300d\u3002<\/p>\n
\u4e0d\u4f7f\u7528 break<\/h2>\n
\u8207\u5176\u4ed6\u8a9e\u8a00\u4e0d\u540c\uff0cGo \u8a9e\u8a00\u7684 switch \u8a9e\u53e5\u4e0d\u9700\u8981\u986f\u5f0f\u4f7f\u7528 break \u8a9e\u53e5\u4f86\u7d42\u6b62 case\u3002\u6bcf\u500b case \u7684\u57f7\u884c\u6703\u81ea\u52d5\u7d42\u6b62\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u932f\u8aa4\u7684\u767c\u751f\u3002<\/p>\n
\u689d\u4ef6\u5f0f switch<\/h2>\n
Go \u8a9e\u8a00\u7684 switch \u8a9e\u53e5\u9084\u652f\u6301\u689d\u4ef6\u5f0f\u7684 case\uff0c\u9019\u610f\u5473\u8457\u53ef\u4ee5\u5728 case \u4e2d\u4f7f\u7528\u5e03\u6797\u8868\u9054\u5f0f\u3002\u4f8b\u5982\uff1a<\/p>\n
switch {\ncase day < 6:\n    fmt.Println("\u5de5\u4f5c\u65e5")\ncase day == 6 || day == 7:\n    fmt.Println("\u9031\u672b")\ndefault:\n    fmt.Println("\u7121\u6548\u7684\u65e5\u5b50")\n}<\/code><\/pre>\n
\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0cswitch \u8a9e\u53e5\u4e0d\u9700\u8981\u4e00\u500b\u8868\u9054\u5f0f\uff0c\u76f4\u63a5\u6839\u64da\u689d\u4ef6\u4f86\u5224\u65b7\u3002<\/p>\n
\u5c0f\u7d50<\/h2>\n
Go \u8a9e\u8a00\u7684 switch case \u8a9e\u53e5\u662f\u4e00\u500b\u5f37\u5927\u4e14\u9748\u6d3b\u7684\u63a7\u5236\u7d50\u69cb\uff0c\u80fd\u5920\u7c21\u5316\u689d\u4ef6\u5224\u65b7\u7684\u908f\u8f2f\u3002\u900f\u904e\u4f7f\u7528 switch \u8a9e\u53e5\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u6e05\u6670\u5730\u8868\u9054\u7a0b\u5f0f\u7684\u908f\u8f2f\uff0c\u4e26\u63d0\u9ad8\u7a0b\u5f0f\u78bc\u7684\u53ef\u8b80\u6027\u3002\u7121\u8ad6\u662f\u57fa\u672c\u7684 case \u5224\u65b7\uff0c\u9084\u662f\u9032\u968e\u7684\u689d\u4ef6\u5f0f switch\uff0c\u9019\u4e9b\u7279\u6027\u90fd\u4f7f\u5f97 Go \u8a9e\u8a00\u5728\u8655\u7406\u591a\u689d\u4ef6\u908f\u8f2f\u6642\u66f4\u52a0\u9ad8\u6548\u3002<\/p>\n
\u5982\u679c\u60a8\u5c0d\u65bc\u4f3a\u670d\u5668\u7684\u9078\u64c7\u6709\u8208\u8da3\uff0c\u7121\u8ad6\u662f \u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 \u4f3a\u670d\u5668<\/a>\uff0c\u90fd\u53ef\u4ee5\u53c3\u8003\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e86\u89e3 Go \u8a9e\u8a00\u4e2d\u7684 switch case \u8a9e\u53e5\uff0c\u5b78\u7fd2\u5982\u4f55\u7c21\u5316\u689d\u4ef6\u5224\u65b7\uff0c\u63d0\u5347\u7a0b\u5f0f\u78bc\u53ef\u8b80\u6027\u8207\u6548\u7387\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-57780","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57780","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=57780"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57780\/revisions"}],"predecessor-version":[{"id":57781,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57780\/revisions\/57781"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=57780"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=57780"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=57780"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}