{"id":205670,"date":"2025-06-12T11:55:37","date_gmt":"2025-06-12T03:55:37","guid":{"rendered":"https:\/\/server.hk\/cnblog\/205670\/"},"modified":"2025-06-12T11:55:37","modified_gmt":"2025-06-12T03:55:37","slug":"golang-%e5%87%bd%e6%95%b0%e5%a6%82%e4%bd%95%e9%97%ad%e5%8c%85","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/205670\/","title":{"rendered":"Golang \u51fd\u6570\u5982\u4f55\u95ed\u5305"},"content":{"rendered":"

\u5077\u5077\u52aa\u529b\uff0c\u6084\u65e0\u58f0\u606f\u5730\u53d8\u5f3a\uff0c\u7136\u540e\u60ca\u8273\u6240\u6709\u4eba\uff01\u54c8\u54c8\uff0c\u5c0f\u4f19\u4f34\u4eec\u53c8\u6765\u5b66\u4e60\u5566~\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd
\n\u300aGOLANG \u51fd\u6570\u5982\u4f55\u95ed\u5305\u300b<\/span>\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4f1a\u8bb2\u5230
\n<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u4e0d\u77e5\u9053\u5927\u5bb6\u5bf9\u5176\u90fd\u6709\u591a\u5c11\u4e86\u89e3\uff0c\u4e0b\u9762\u6211\u4eec\u5c31\u4e00\u8d77\u6765\u770b\u4e00\u5427\uff01\u5f53\u7136\uff0c\u975e\u5e38\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u8bc4\u8bba\uff0c\u7ed9\u51fa\u5408\u7406\u7684\u5efa\u8bae\uff0c\u6211\u4eec\u4e00\u8d77\u5b66\u4e60\uff0c\u4e00\u8d77\u8fdb\u6b65\uff01,Go \u4e2d\u7684\u51fd\u6570\u95ed\u5305\u5141\u8bb8\u5728\u51fd\u6570\u5185\u90e8\u58f0\u660e\u7684\u51fd\u6570\u8bbf\u95ee\u7236\u51fd\u6570\u4f5c\u7528\u57df\u4e2d\u7684\u53d8\u91cf\uff0c\u5373\u4f7f\u7236\u51fd\u6570\u5df2\u7ecf\u9000\u51fa\u3002\u8fd9\u4f7f\u5f97 Go \u53ef\u4ee5\u5728\u7279\u5b9a\u573a\u666f\u4e0b\u53d1\u6325\u4ee5\u4e0b\u4f5c\u7528\uff1a\u521b\u5efa\u5177\u6709\u6301\u4e45\u884c\u4e3a\u7684\u51fd\u6570\uff0c\u5373\u4f7f\u7236\u51fd\u6570\u9000\u51fa\u540e\u4f9d\u7136\u53ef\u4ee5\u8bbf\u95ee\u5176\u53d8\u91cf\u3002\u901a\u8fc7\u5c06\u51fd\u6570\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\uff0c\u5b9e\u73b0\u52a8\u6001\u884c\u4e3a\u548c\u677e\u6563\u8026\u5408\u3002\u5b9e\u73b0\u533f\u540d\u51fd\u6570\uff0c\u5728\u9700\u8981\u65f6\u6267\u884c\u7279\u5b9a\u64cd\u4f5c\u800c\u4e0d\u58f0\u660e\u5355\u72ec\u7684\u51fd\u6570\u3002,
\n,
\nGo \u4e2d\u7684\u51fd\u6570\u95ed\u5305<\/strong>,
\n\u4ecb\u7ecd<\/strong>
\n
\u95ed\u5305\u662f\u5728\u51fd\u6570\u5185\u90e8\u58f0\u660e\u7684\u51fd\u6570\uff0c\u5b83\u53ef\u4ee5\u8bbf\u95ee\u5176\u7236\u51fd\u6570\u4f5c\u7528\u57df\u4e2d\u7684\u53d8\u91cf\u3002\u8fd9\u4f7f\u5f97\u60a8\u53ef\u4ee5\u521b\u5efa\u5177\u6709\u6301\u4e45\u884c\u4e3a\u7684\u51fd\u6570\uff0c\u5373\u4f7f\u7236\u51fd\u6570\u5df2\u7ecf\u9000\u51fa\u3002,
\n\u8bed\u6cd5<\/strong>,\u4e0a\u9762\u793a\u4f8b\u4e2d\uff0c
\nouterFunction<\/code> \u8fd4\u56de\u4e00\u4e2a\u95ed\u5305\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u53ef\u4ee5\u8bbf\u95ee
\nx<\/code> \u53d8\u91cf\uff0c\u5373\u4f7f
\nouterFunction<\/code> \u5df2\u7ecf\u9000\u51fa\u3002,
\n\u5b9e\u6218\u6848\u4f8b<\/strong>,
\n\u7edf\u8ba1\u7d2f\u8ba1\u503c<\/strong>,\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u95ed\u5305\u51fd\u6570
\nincrement<\/code> \u53ef\u4ee5\u8bbf\u95ee\u5e76\u4fee\u6539\u7236\u51fd\u6570 (
\nmain<\/code>) \u4e2d\u7684
\ncount<\/code> \u53d8\u91cf\uff0c\u5373\u4f7f
\nmain<\/code> \u51fd\u6570\u5df2\u7ecf\u9000\u51fa\u3002,
\n\u4f7f\u7528\u95ed\u5305\u8fdb\u884c\u7f13\u5b58<\/strong>,\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u95ed\u5305\u51fd\u6570
\ncache<\/code> \u521b\u5efa\u4e86\u4e00\u4e2a\u7f13\u5b58\u673a\u5236\uff0c\u7528\u4e8e\u5b58\u50a8\u8ba1\u7b97\u7ed3\u679c\u3002\u5f53\u4f7f\u7528\u95ed\u5305\u51fd\u6570
\ncachedFibonacci<\/code> \u8ba1\u7b97\u6590\u6ce2\u90a3\u5951\u6570\u65f6\uff0c\u5b83\u4f1a\u68c0\u67e5\u7f13\u5b58\u4e2d\u662f\u5426\u5b58\u5728\u7ed3\u679c\uff0c\u5982\u679c\u6ca1\u6709\uff0c\u5b83\u5c06\u901a\u8fc7\u8c03\u7528\u539f\u59cb\u51fd\u6570
\nfibonacci<\/code> \u8fdb\u884c\u8ba1\u7b97\u5e76\u5c06\u5176\u5b58\u50a8\u5728\u7f13\u5b58\u4e2d\u3002\u901a\u8fc7\u4f7f\u7528\u95ed\u5305\uff0c\u6211\u4eec\u53ef\u4ee5\u6301\u4e45\u5730\u5b58\u50a8\u8ba1\u7b97\u7ed3\u679c\uff0c\u4ece\u800c\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u3002,\u4eca\u5929\u5173\u4e8e\u300aGOLANG \u51fd\u6570\u5982\u4f55\u95ed\u5305\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\u6ce8GOLANG\u516c\u4f17\u53f7\uff01,\u5077\u5077\u52aa\u529b\uff0c\u6084\u65e0\u58f0\u606f\u5730\u53d8\u5f3a\uff0c\u7136\u540e\u60ca\u8273\u6240\u6709\u4eba\uff01\u54c8\u54c8\uff0c\u5c0f\u4f19\u4f34\u4eec\u53c8\u6765\u5b66\u4e60\u5566~\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd
\n\u300aGOLANG \u51fd\u6570\u5982\u4f55\u95ed\u5305\u300b<\/span>\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4f1a\u8bb2\u5230
\n<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u4e0d\u77e5\u9053\u5927\u5bb6\u5bf9\u5176\u90fd\u6709\u591a\u5c11\u4e86\u89e3\uff0c\u4e0b\u9762\u6211\u4eec\u5c31\u4e00\u8d77\u6765\u770b\u4e00\u5427\uff01\u5f53\u7136\uff0c\u975e\u5e38\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u8bc4\u8bba\uff0c\u7ed9\u51fa\u5408\u7406\u7684\u5efa\u8bae\uff0c\u6211\u4eec\u4e00\u8d77\u5b66\u4e60\uff0c\u4e00\u8d77\u8fdb\u6b65\uff01,
\n<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> GOLANG \u51fd\u6570\u5982\u4f55\u95ed\u5305<\/span><\/p>\n

GOLANG \u51fd\u6570\u5982\u4f55\u95ed\u5305<\/h1>\n

2024-10-26 19:17:44<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u5077\u5077\u52aa\u529b\uff0c\u6084\u65e0\u58f0\u606f\u5730\u53d8\u5f3a\uff0c\u7136\u540e\u60ca\u8273\u6240\u6709\u4eba\uff01\u54c8\u54c8\uff0c\u5c0f\u4f19\u4f34\u4eec\u53c8\u6765\u5b66\u4e60\u5566~\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u300aGOLANG \u51fd\u6570\u5982\u4f55\u95ed\u5305\u300b<\/span>\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4f1a\u8bb2\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u4e0d\u77e5\u9053\u5927\u5bb6\u5bf9\u5176\u90fd\u6709\u591a\u5c11\u4e86\u89e3\uff0c\u4e0b\u9762\u6211\u4eec\u5c31\u4e00\u8d77\u6765\u770b\u4e00\u5427\uff01\u5f53\u7136\uff0c\u975e\u5e38\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u8bc4\u8bba\uff0c\u7ed9\u51fa\u5408\u7406\u7684\u5efa\u8bae\uff0c\u6211\u4eec\u4e00\u8d77\u5b66\u4e60\uff0c\u4e00\u8d77\u8fdb\u6b65\uff01<\/p>\n

Go \u4e2d\u7684\u51fd\u6570\u95ed\u5305\u5141\u8bb8\u5728\u51fd\u6570\u5185\u90e8\u58f0\u660e\u7684\u51fd\u6570\u8bbf\u95ee\u7236\u51fd\u6570\u4f5c\u7528\u57df\u4e2d\u7684\u53d8\u91cf\uff0c\u5373\u4f7f\u7236\u51fd\u6570\u5df2\u7ecf\u9000\u51fa\u3002\u8fd9\u4f7f\u5f97 Go \u53ef\u4ee5\u5728\u7279\u5b9a\u573a\u666f\u4e0b\u53d1\u6325\u4ee5\u4e0b\u4f5c\u7528\uff1a\u521b\u5efa\u5177\u6709\u6301\u4e45\u884c\u4e3a\u7684\u51fd\u6570\uff0c\u5373\u4f7f\u7236\u51fd\u6570\u9000\u51fa\u540e\u4f9d\u7136\u53ef\u4ee5\u8bbf\u95ee\u5176\u53d8\u91cf\u3002\u901a\u8fc7\u5c06\u51fd\u6570\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\uff0c\u5b9e\u73b0\u52a8\u6001\u884c\u4e3a\u548c\u677e\u6563\u8026\u5408\u3002\u5b9e\u73b0\u533f\u540d\u51fd\u6570\uff0c\u5728\u9700\u8981\u65f6\u6267\u884c\u7279\u5b9a\u64cd\u4f5c\u800c\u4e0d\u58f0\u660e\u5355\u72ec\u7684\u51fd\u6570\u3002<\/p>\n

<\/p>\n

Go \u4e2d\u7684\u51fd\u6570\u95ed\u5305<\/strong><\/p>\n

\u4ecb\u7ecd<\/strong>
\u95ed\u5305\u662f\u5728\u51fd\u6570\u5185\u90e8\u58f0\u660e\u7684\u51fd\u6570\uff0c\u5b83\u53ef\u4ee5\u8bbf\u95ee\u5176\u7236\u51fd\u6570\u4f5c\u7528\u57df\u4e2d\u7684\u53d8\u91cf\u3002\u8fd9\u4f7f\u5f97\u60a8\u53ef\u4ee5\u521b\u5efa\u5177\u6709\u6301\u4e45\u884c\u4e3a\u7684\u51fd\u6570\uff0c\u5373\u4f7f\u7236\u51fd\u6570\u5df2\u7ecf\u9000\u51fa\u3002<\/p>\n

\u8bed\u6cd5<\/strong><\/p>\n

func outerFunction(x int) func() int {\n  \/\/ \u5b9a\u4e49\u95ed\u5305\u51fd\u6570\n  return func() int {\n    return x\n  }\n}<\/pre>\n
\u4e0a\u9762\u793a\u4f8b\u4e2d\uff0couterFunction<\/code> \u8fd4\u56de\u4e00\u4e2a\u95ed\u5305\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u53ef\u4ee5\u8bbf\u95ee x<\/code> \u53d8\u91cf\uff0c\u5373\u4f7f outerFunction<\/code> \u5df2\u7ecf\u9000\u51fa\u3002<\/p>\n
\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n
\u7edf\u8ba1\u7d2f\u8ba1\u503c<\/strong><\/p>\n
package main\n\nimport \"fmt\"\n\nfunc main() {\n  var count int \/\/ \u5b9a\u4e49\u8ba1\u6570\u5668\n\n  \/\/ \u5b9a\u4e49\u4e00\u4e2a\u95ed\u5305\u51fd\u6570\u6765\u589e\u52a0\u8ba1\u6570\u5668\n  increment := func() {\n    count++\n  }\n\n  \/\/ \u8c03\u7528\u95ed\u5305\u51fd\u6570\u591a\u6b21\n  increment()\n  increment()\n\n  \/\/ \u6253\u5370\u8ba1\u6570\u5668\u503c\n  fmt.Println(count) \/\/ \u8f93\u51fa 2\n}<\/pre>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u95ed\u5305\u51fd\u6570 increment<\/code> \u53ef\u4ee5\u8bbf\u95ee\u5e76\u4fee\u6539\u7236\u51fd\u6570 (main<\/code>) \u4e2d\u7684 count<\/code> \u53d8\u91cf\uff0c\u5373\u4f7f main<\/code> \u51fd\u6570\u5df2\u7ecf\u9000\u51fa\u3002<\/p>\n
\u4f7f\u7528\u95ed\u5305\u8fdb\u884c\u7f13\u5b58<\/strong><\/p>\n
package main\n\nimport \"fmt\"\n\nfunc main() {\n  \/\/ \u5b9a\u4e49\u4e00\u4e2a\u7f13\u5b58\u51fd\u6570\uff0c\u8fd4\u56de\u8ba1\u7b97\u7ed3\u679c\n  cache := func(fn func(int) int) func(int) int {\n    cache := make(map[int]int)\n\n    \/\/ \u8fd4\u56de\u4e00\u4e2a\u95ed\u5305\u51fd\u6570\u6765\u68c0\u67e5\u7f13\u5b58\u6216\u8ba1\u7b97\u7ed3\u679c\n    return func(n int) int {\n      if value, ok := cache[n]; ok {\n        return value\n      }\n\n      value = fn(n)\n      cache[n] = value\n      return value\n    }\n  }\n\n  \/\/ \u5b9a\u4e49\u4e00\u4e2a\u8981\u7f13\u5b58\u7684\u51fd\u6570\n  fibonacci := func(n int) int {\n    if n < 2 {\n      return 1\n    }\n    return fibonacci(n-1) + fibonacci(n-2)\n  }\n\n  \/\/ \u4f7f\u7528\u95ed\u5305\u7f13\u5b58\u6590\u6ce2\u90a3\u5951\u6570\u5217\u7684\u8ba1\u7b97\u7ed3\u679c\n  cachedFibonacci := cache(fibonacci)\n\n  \/\/ \u8c03\u7528\u95ed\u5305\u51fd\u6570\u6253\u5370\u6590\u6ce2\u90a3\u5951\u6570\u5217\u7684\u524d 10 \u9879\n  for i := 0; i < 10; i++ {\n    fmt.Println(cachedFibonacci(i))\n  }\n\n  \/\/ \u8f93\u51fa\uff1a\n  \/\/ 1\n  \/\/ 1\n  \/\/ 2\n  \/\/ 3\n  \/\/ 5\n  \/\/ 8\n  \/\/ 13\n  \/\/ 21\n  \/\/ 34\n  \/\/ 55\n}<\/pre>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u95ed\u5305\u51fd\u6570 cache<\/code> \u521b\u5efa\u4e86\u4e00\u4e2a\u7f13\u5b58\u673a\u5236\uff0c\u7528\u4e8e\u5b58\u50a8\u8ba1\u7b97\u7ed3\u679c\u3002\u5f53\u4f7f\u7528\u95ed\u5305\u51fd\u6570 cachedFibonacci<\/code> \u8ba1\u7b97\u6590\u6ce2\u90a3\u5951\u6570\u65f6\uff0c\u5b83\u4f1a\u68c0\u67e5\u7f13\u5b58\u4e2d\u662f\u5426\u5b58\u5728\u7ed3\u679c\uff0c\u5982\u679c\u6ca1\u6709\uff0c\u5b83\u5c06\u901a\u8fc7\u8c03\u7528\u539f\u59cb\u51fd\u6570 fibonacci<\/code> \u8fdb\u884c\u8ba1\u7b97\u5e76\u5c06\u5176\u5b58\u50a8\u5728\u7f13\u5b58\u4e2d\u3002\u901a\u8fc7\u4f7f\u7528\u95ed\u5305\uff0c\u6211\u4eec\u53ef\u4ee5\u6301\u4e45\u5730\u5b58\u50a8\u8ba1\u7b97\u7ed3\u679c\uff0c\u4ece\u800c\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u3002<\/p>\n
\u4eca\u5929\u5173\u4e8e\u300aGOLANG \u51fd\u6570\u5982\u4f55\u95ed\u5305\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\u6ce8GOLANG\u516c\u4f17\u53f7\uff01<\/p>\n
\n
\n <\/dt>\n
\n   \u4f01\u4e1a\u5fae\u4fe1\u4e2d\u5982\u4f55\u83b7\u53d6\u7528\u6237\u6807\u8bc6 (userid \u6216 openid)\uff1f\n <\/dd>\n<\/dl>\n
\n
\n <\/dt>\n
\n   PHP \u51fd\u6570\u4e2d\u5982\u4f55\u4f7f\u7528\u9012\u5f52\u5b9e\u73b0\u5e7f\u5ea6\u4f18\u5148\u641c\u7d22\u7b97\u6cd5\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
\u5077\u5077\u52aa\u529b\uff0c\u6084\u65e0\u58f0\u606f\u5730\u53d8\u5f3a\uff0c\u7136\u540e\u60ca...<\/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-205670","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205670","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=205670"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205670\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=205670"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=205670"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=205670"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}