{"id":3173,"date":"2025-03-25T23:45:51","date_gmt":"2025-03-25T15:45:51","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=3173"},"modified":"2025-03-25T23:45:51","modified_gmt":"2025-03-25T15:45:51","slug":"go-%e8%af%ad%e8%a8%80%e5%be%aa%e7%8e%af%e8%af%ad%e5%8f%a5%ef%bc%88loop-statements%ef%bc%89%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/03\/25\/go-%e8%af%ad%e8%a8%80%e5%be%aa%e7%8e%af%e8%af%ad%e5%8f%a5%ef%bc%88loop-statements%ef%bc%89%e8%af%a6%e8%a7%a3\/","title":{"rendered":"Go \u8bed\u8a00\u5faa\u73af\u8bed\u53e5\uff08Loop Statements\uff09\u8be6\u89e3"},"content":{"rendered":"\n

\u5728 Go \u8bed\u8a00\u4e2d\uff0c\u5faa\u73af\u8bed\u53e5\u7528\u4e8e\u6267\u884c\u91cd\u590d\u64cd\u4f5c\u3002Go \u8bed\u8a00\u63d0\u4f9b\u4e86 for<\/code> \u5173\u952e\u5b57\u5b9e\u73b0\u5faa\u73af\u7ed3\u6784\uff0c\u5e76\u4e14\u652f\u6301\u4ee5\u4e0b\u4e09\u79cd\u5faa\u73af\u7c7b\u578b\uff1a<\/p>\n\n\n\n

    \n
  1. \u6807\u51c6 for<\/code> \u5faa\u73af<\/strong>\uff08\u7c7b C \u8bed\u8a00\u7684 for<\/code> \u8bed\u6cd5\uff09<\/li>\n\n\n\n
  2. for<\/code> \u4f5c\u4e3a while<\/code> \u5faa\u73af<\/strong><\/li>\n\n\n\n
  3. \u65e0\u9650\u5faa\u73af<\/strong><\/li>\n\n\n\n
  4. for range<\/code> \u5faa\u73af<\/strong>\uff08\u7528\u4e8e\u904d\u5386\u6570\u7ec4\u3001\u5207\u7247\u3001\u6620\u5c04\u3001\u5b57\u7b26\u4e32\u3001\u901a\u9053\uff09<\/li>\n<\/ol>\n\n\n\n
    \n\n\n\n

    1. for<\/code> \u5faa\u73af\uff08\u6807\u51c6\u683c\u5f0f\uff09<\/strong><\/h2>\n\n\n\n

    1.1 \u8bed\u6cd5<\/strong><\/h3>\n\n\n\n
    for \u521d\u59cb\u5316\u8bed\u53e5; \u6761\u4ef6\u8868\u8fbe\u5f0f; \u9012\u589e\/\u9012\u51cf\u8bed\u53e5 {\n    \/\/ \u4ee3\u7801\u5757\n}<\/code><\/pre>\n\n\n\n
      \n
    • \u521d\u59cb\u5316\u8bed\u53e5<\/strong>\uff1a\u53ea\u6267\u884c\u4e00\u6b21\uff0c\u901a\u5e38\u7528\u4e8e\u53d8\u91cf\u521d\u59cb\u5316\u3002<\/li>\n\n\n\n
    • \u6761\u4ef6\u8868\u8fbe\u5f0f<\/strong>\uff1a\u6bcf\u6b21\u5faa\u73af\u5f00\u59cb\u524d\u8fdb\u884c\u6761\u4ef6\u5224\u65ad\uff0ctrue<\/code> \u7ee7\u7eed\u6267\u884c\uff0cfalse<\/code> \u7ec8\u6b62\u5faa\u73af\u3002<\/li>\n\n\n\n
    • \u9012\u589e\/\u9012\u51cf\u8bed\u53e5<\/strong>\uff1a\u6bcf\u6b21\u5faa\u73af\u7ed3\u675f\u540e\u6267\u884c\uff0c\u7528\u4e8e\u63a7\u5236\u5faa\u73af\u53d8\u91cf\u7684\u53d8\u5316\u3002<\/li>\n<\/ul>\n\n\n\n
      1.2 \u793a\u4f8b<\/strong><\/h3>\n\n\n\n
      package main\n\nimport \"fmt\"\n\nfunc main() {\n    for i := 1; i <= 5; i++ {\n        fmt.Println(\"\u5f53\u524d\u503c:\", i)\n    }\n}<\/code><\/pre>\n\n\n\n
      \u8f93\u51fa\uff1a<\/strong><\/p>\n\n\n\n
      \u5f53\u524d\u503c: 1\n\u5f53\u524d\u503c: 2\n\u5f53\u524d\u503c: 3\n\u5f53\u524d\u503c: 4\n\u5f53\u524d\u503c: 5<\/code><\/pre>\n\n\n\n
      \n\n\n\n
      2. for<\/code> \u4f5c\u4e3a while<\/code> \u5faa\u73af<\/strong><\/h2>\n\n\n\n
      Go \u8bed\u8a00\u6ca1\u6709 while<\/code> \u5173\u952e\u5b57\uff0c\u4f46\u53ef\u4ee5\u4f7f\u7528 for<\/code> \u5b9e\u73b0 while<\/code> \u5faa\u73af\u7684\u6548\u679c\u3002<\/p>\n\n\n\n
      2.1 \u8bed\u6cd5<\/strong><\/h3>\n\n\n\n
      for \u6761\u4ef6\u8868\u8fbe\u5f0f {\n    \/\/ \u4ee3\u7801\u5757\n}<\/code><\/pre>\n\n\n\n
        \n
      • \u7701\u7565\u4e86\u521d\u59cb\u5316<\/strong>\u548c\u9012\u589e\/\u9012\u51cf<\/strong>\u90e8\u5206\uff0c\u5faa\u73af\u4ec5\u53d7\u6761\u4ef6\u63a7\u5236\u3002<\/li>\n<\/ul>\n\n\n\n
        2.2 \u793a\u4f8b<\/strong><\/h3>\n\n\n\n
        package main\n\nimport \"fmt\"\n\nfunc main() {\n    count := 0\n\n    for count < 5 {\n        fmt.Println(\"\u8ba1\u6570:\", count)\n        count++\n    }\n}<\/code><\/pre>\n\n\n\n
        \u8f93\u51fa\uff1a<\/strong><\/p>\n\n\n\n
        \u8ba1\u6570: 0\n\u8ba1\u6570: 1\n\u8ba1\u6570: 2\n\u8ba1\u6570: 3\n\u8ba1\u6570: 4<\/code><\/pre>\n\n\n\n
        \n\n\n\n
        3. \u65e0\u9650\u5faa\u73af<\/strong><\/h2>\n\n\n\n
        for<\/code> \u5faa\u73af\u5982\u679c\u6ca1\u6709\u6307\u5b9a\u6761\u4ef6\u8868\u8fbe\u5f0f\uff0c\u5c31\u4f1a\u53d8\u6210\u65e0\u9650\u5faa\u73af<\/strong>\u3002<\/p>\n\n\n\n
        3.1 \u8bed\u6cd5<\/strong><\/h3>\n\n\n\n
        for {\n    \/\/ \u4ee3\u7801\u5757\n}<\/code><\/pre>\n\n\n\n
          \n
        • \u8fd9\u79cd\u5faa\u73af\u4e0d\u4f1a\u81ea\u52a8\u505c\u6b62<\/strong>\uff0c\u53ea\u80fd\u901a\u8fc7 break<\/code> \u8bed\u53e5\u7ec8\u6b62\u3002<\/li>\n<\/ul>\n\n\n\n
          3.2 \u793a\u4f8b<\/strong><\/h3>\n\n\n\n
          package main\n\nimport \"fmt\"\n\nfunc main() {\n    count := 0\n\n    for {\n        fmt.Println(\"\u5faa\u73af\u6267\u884c:\", count)\n        count++\n\n        if count >= 3 {\n            break \/\/ \u7ec8\u6b62\u5faa\u73af\n        }\n    }\n}<\/code><\/pre>\n\n\n\n
          \u8f93\u51fa\uff1a<\/strong><\/p>\n\n\n\n
          \u5faa\u73af\u6267\u884c: 0\n\u5faa\u73af\u6267\u884c: 1\n\u5faa\u73af\u6267\u884c: 2<\/code><\/pre>\n\n\n\n
          \n\n\n\n
          4. for range<\/code> \u5faa\u73af\uff08\u904d\u5386\u96c6\u5408\uff09<\/strong><\/h2>\n\n\n\n
          for range<\/code> \u8bed\u53e5\u7528\u4e8e\u904d\u5386\u6570\u7ec4\u3001\u5207\u7247\u3001\u6620\u5c04\uff08map\uff09\u3001\u5b57\u7b26\u4e32\u3001\u901a\u9053\uff08channel\uff09<\/strong>\u3002<\/p>\n\n\n\n
          4.1 \u904d\u5386\u6570\u7ec4\u548c\u5207\u7247<\/strong><\/h3>\n\n\n\n
          package main\n\nimport \"fmt\"\n\nfunc main() {\n    nums := []int{10, 20, 30, 40}\n\n    for index, value := range nums {\n        fmt.Printf(\"\u7d22\u5f15: %d, \u503c: %d\\n\", index, value)\n    }\n}<\/code><\/pre>\n\n\n\n
          \u8f93\u51fa\uff1a<\/strong><\/p>\n\n\n\n
          \u7d22\u5f15: 0, \u503c: 10\n\u7d22\u5f15: 1, \u503c: 20\n\u7d22\u5f15: 2, \u503c: 30\n\u7d22\u5f15: 3, \u503c: 40<\/code><\/pre>\n\n\n\n
            \n
          • index<\/code>\uff1a\u7d22\u5f15<\/li>\n\n\n\n
          • value<\/code>\uff1a\u5bf9\u5e94\u7d22\u5f15\u7684\u503c<\/li>\n<\/ul>\n\n\n\n
            \u5982\u679c\u4e0d\u9700\u8981\u7d22\u5f15\uff0c\u53ef\u4ee5\u7528 _<\/code> \u4ee3\u66ff\uff1a<\/p>\n\n\n\n
            for _, value := range nums {\n    fmt.Println(value)\n}<\/code><\/pre>\n\n\n\n
            \n\n\n\n
            4.2 \u904d\u5386\u5b57\u7b26\u4e32<\/strong><\/h3>\n\n\n\n
            \u904d\u5386\u5b57\u7b26\u4e32\u65f6\uff0cfor range<\/code> \u8fd4\u56de\u7684\u662f\u7d22\u5f15<\/strong>\u548cUnicode \u7801\u70b9\uff08rune \u7c7b\u578b\uff09<\/strong>\u3002<\/p>\n\n\n\n
            package main\n\nimport \"fmt\"\n\nfunc main() {\n    str := \"Go\u8bed\u8a00\"\n\n    for index, char := range str {\n        fmt.Printf(\"\u7d22\u5f15: %d, \u5b57\u7b26: %c\\n\", index, char)\n    }\n}<\/code><\/pre>\n\n\n\n
            \u8f93\u51fa\uff1a<\/strong><\/p>\n\n\n\n
            \u7d22\u5f15: 0, \u5b57\u7b26: G\n\u7d22\u5f15: 1, \u5b57\u7b26: o\n\u7d22\u5f15: 2, \u5b57\u7b26: \u8bed\n\u7d22\u5f15: 5, \u5b57\u7b26: \u8a00<\/code><\/pre>\n\n\n\n
            \u6ce8\u610f<\/strong>\uff1a<\/p>\n\n\n\n
              \n
            • \u4e2d\u6587\u5b57\u7b26\u5360\u591a\u4e2a\u5b57\u8282<\/strong>\uff0c\u56e0\u6b64\u67d0\u4e9b\u7d22\u5f15\u503c\u4e0d\u662f\u8fde\u7eed\u7684\u3002<\/li>\n<\/ul>\n\n\n\n
              \n\n\n\n
              4.3 \u904d\u5386 map<\/code>\uff08\u952e\u503c\u5bf9\uff09<\/strong><\/h3>\n\n\n\n
              package main\n\nimport \"fmt\"\n\nfunc main() {\n    scores := map[string]int{\"Alice\": 90, \"Bob\": 85, \"Charlie\": 95}\n\n    for name, score := range scores {\n        fmt.Printf(\"\u59d3\u540d: %s, \u5206\u6570: %d\\n\", name, score)\n    }\n}<\/code><\/pre>\n\n\n\n
              \u8f93\u51fa\uff1a<\/strong><\/p>\n\n\n\n
              \u59d3\u540d: Alice, \u5206\u6570: 90\n\u59d3\u540d: Bob, \u5206\u6570: 85\n\u59d3\u540d: Charlie, \u5206\u6570: 95<\/code><\/pre>\n\n\n\n
              \u5982\u679c\u53ea\u60f3\u904d\u5386 map<\/code> \u7684\u952e\uff1a<\/p>\n\n\n\n
              for key := range scores {\n    fmt.Println(\"\u952e:\", key)\n}<\/code><\/pre>\n\n\n\n
              \n\n\n\n
              4.4 \u904d\u5386 channel<\/code><\/strong><\/h3>\n\n\n\n
              package main\n\nimport \"fmt\"\n\nfunc main() {\n    ch := make(chan int, 3)\n    ch <- 10\n    ch <- 20\n    ch <- 30\n    close(ch) \/\/ \u5173\u95ed\u901a\u9053\n\n    for num := range ch {\n        fmt.Println(\"\u63a5\u6536:\", num)\n    }\n}<\/code><\/pre>\n\n\n\n
              \u8f93\u51fa\uff1a<\/strong><\/p>\n\n\n\n
              \u63a5\u6536: 10\n\u63a5\u6536: 20\n\u63a5\u6536: 30<\/code><\/pre>\n\n\n\n
                \n
              • range<\/code> \u7528\u4e8e\u904d\u5386 channel<\/code> \u65f6\uff0c\u901a\u9053\u5fc5\u987b\u5173\u95ed\uff0c\u5426\u5219\u4f1a\u6b7b\u9501<\/strong>\u3002<\/li>\n<\/ul>\n\n\n\n
                \n\n\n\n
                5. break<\/code> \u8bed\u53e5\uff08\u7ec8\u6b62\u5faa\u73af\uff09<\/strong><\/h2>\n\n\n\n
                break<\/code> \u7528\u4e8e\u63d0\u524d\u7ec8\u6b62\u5faa\u73af\uff0c\u8df3\u51fa\u5f53\u524d\u5faa\u73af\u4f53\u3002<\/p>\n\n\n\n
                \u793a\u4f8b<\/strong><\/h3>\n\n\n\n
                package main\n\nimport \"fmt\"\n\nfunc main() {\n    for i := 1; i <= 10; i++ {\n        if i > 5 {\n            break\n        }\n        fmt.Println(\"\u503c:\", i)\n    }\n}<\/code><\/pre>\n\n\n\n
                \u8f93\u51fa\uff1a<\/strong><\/p>\n\n\n\n
                \u503c: 1\n\u503c: 2\n\u503c: 3\n\u503c: 4\n\u503c: 5<\/code><\/pre>\n\n\n\n
                \n\n\n\n
                6. continue<\/code> \u8bed\u53e5\uff08\u8df3\u8fc7\u672c\u6b21\u5faa\u73af\uff09<\/strong><\/h2>\n\n\n\n
                continue<\/code> \u7528\u4e8e\u8df3\u8fc7\u672c\u6b21\u5faa\u73af\u7684\u5269\u4f59\u90e8\u5206\uff0c\u76f4\u63a5\u8fdb\u5165\u4e0b\u4e00\u6b21\u5faa\u73af\u3002<\/p>\n\n\n\n
                \u793a\u4f8b<\/strong><\/h3>\n\n\n\n
                package main\n\nimport \"fmt\"\n\nfunc main() {\n    for i := 1; i <= 5; i++ {\n        if i == 3 {\n            continue\n        }\n        fmt.Println(\"\u503c:\", i)\n    }\n}<\/code><\/pre>\n\n\n\n
                \u8f93\u51fa\uff1a<\/strong><\/p>\n\n\n\n
                \u503c: 1\n\u503c: 2\n\u503c: 4\n\u503c: 5<\/code><\/pre>\n\n\n\n
                \u6ce8\u610f\uff1a<\/strong> continue<\/code> \u8df3\u8fc7 i == 3<\/code> \u7684\u6267\u884c\u3002<\/p>\n\n\n\n
                \n\n\n\n
                7. \u603b\u7ed3<\/strong><\/h2>\n\n\n\n
                \u8bed\u53e5<\/th>\u4f5c\u7528<\/th><\/tr><\/thead>
                for<\/code><\/td>\u6807\u51c6\u5faa\u73af<\/td><\/tr>
                for<\/code> (\u4f5c\u4e3a while<\/code>)<\/td>\u53ea\u6709\u6761\u4ef6\u8868\u8fbe\u5f0f\u7684\u5faa\u73af<\/td><\/tr>
                for {}<\/code><\/td>\u65e0\u9650\u5faa\u73af<\/td><\/tr>
                for range<\/code><\/td>\u904d\u5386\u96c6\u5408\uff08\u6570\u7ec4\u3001\u5207\u7247\u3001map\u3001\u5b57\u7b26\u4e32\u3001channel\uff09<\/td><\/tr>
                break<\/code><\/td>\u7ec8\u6b62\u5f53\u524d\u5faa\u73af<\/td><\/tr>
                continue<\/code><\/td>\u8df3\u8fc7\u672c\u6b21\u5faa\u73af\uff0c\u8fdb\u5165\u4e0b\u4e00\u6b21<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
                \n","protected":false},"excerpt":{"rendered":"
                \u5728 Go \u8bed\u8a00\u4e2d\uff0c\u5faa\u73af\u8bed\u53e5\u7528\u4e8e\u6267\u884c\u91cd\u590d\u64cd\u4f5c\u3002Go \u8bed\u8a00\u63d0\u4f9b\u4e86 for \u5173\u952e\u5b57\u5b9e\u73b0\u5faa\u73af\u7ed3\u6784\uff0c\u5e76\u4e14\u652f\u6301\u4ee5\u4e0b\u4e09\u79cd\u5faa\u73af […]<\/p>\n","protected":false},"author":1,"featured_media":3174,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[58],"tags":[],"class_list":["post-3173","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-golang"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3173","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/comments?post=3173"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3173\/revisions"}],"predecessor-version":[{"id":3175,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3173\/revisions\/3175"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media\/3174"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=3173"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=3173"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=3173"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}