{"id":205927,"date":"2025-06-12T11:43:50","date_gmt":"2025-06-12T03:43:50","guid":{"rendered":"https:\/\/server.hk\/cnblog\/205927\/"},"modified":"2025-06-12T11:43:50","modified_gmt":"2025-06-12T03:43:50","slug":"golang-%e5%87%bd%e6%95%b0%e9%93%be%e4%b8%ad%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0%e7%bb%84%e5%90%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/205927\/","title":{"rendered":"Golang \u51fd\u6570\u94fe\u4e2d\u5982\u4f55\u5b9e\u73b0\u7ec4\u5408\uff1f"},"content":{"rendered":"<p>\u73cd\u60dc\u65f6\u95f4\uff0c\u52e4\u594b\u5b66\u4e60\uff01\u4eca\u5929\u7ed9\u5927\u5bb6\u5e26\u6765<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGOLANG \u51fd\u6570\u94fe\u4e2d\u5982\u4f55\u5b9e\u73b0\u7ec4\u5408\uff1f\u300b<\/span>\uff0c\u6b63\u6587\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\uff0c\u5982\u679c\u4f60\u6b63\u5728\u5b66\u4e60<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\uff0c\u6216\u8005\u662f\u5bf9<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\u6709\u7591\u95ee\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u6211\uff01\u540e\u9762\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u5185\u5bb9\u7684\uff0c\u5e0c\u671b\u90fd\u80fd\u5e2e\u5230\u6b63\u5728\u5b66\u4e60\u7684\u5927\u5bb6\uff01,\u8981\u5728 Go \u51fd\u6570\u94fe\u4e2d\u5b9e\u73b0\u7ec4\u5408\uff0c\u53ef\u4ee5\u4f7f\u7528 Compose() \u51fd\u6570\u5c06\u591a\u4e2a\u51fd\u6570\u7ec4\u5408\u6210\u4e00\u4e2a\u65b0\u51fd\u6570\uff0c\u65b0\u51fd\u6570\u4f9d\u6b21\u8c03\u7528\u4f20\u9012\u7ed9 Compose() \u7684\u51fd\u6570\uff0c\u987a\u5e8f\u662f\u4ece\u53f3\u5230\u5de6\u3002\u8fd9\u79cd\u6280\u672f\u53ef\u7528\u4e8e\u521b\u5efa\u590d\u6742\u7684\u5de5\u4f5c\u6d41\u5e76\u8f7b\u677e\u5730\u91cd\u7528\u51fd\u6570\uff0c\u4f8b\u5982\u4e0b\u9762\u7684\u5b9e\u6218\u6848\u4f8b\u4e2d\u7ec4\u5408\u51fd\u6570\u4ee5\u8ba1\u7b97\u4e00\u7ec4\u6570\u5b57\u7684\u5e73\u5747\u5e73\u65b9\u3002,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241028\/1730091897671f1b7924e0b.jpg\" class=\"aligncenter\">,<br \/>\n<strong>\u5982\u4f55\u5728 Go \u51fd\u6570\u94fe\u4e2d\u5b9e\u73b0\u7ec4\u5408<\/strong>,\u5728 Go \u4e2d\uff0c\u51fd\u6570\u94fe\u662f\u4e00\u79cd\u4ee5\u7279\u5b9a\u987a\u5e8f\u8fde\u63a5\u4e00\u7cfb\u5217\u51fd\u6570\u7684\u65b9\u5f0f\uff0c\u5b83\u5141\u8bb8\u521b\u5efa\u590d\u6742\u7684\u5de5\u4f5c\u6d41\u3002\u7ec4\u5408\u662f\u51fd\u6570\u94fe\u7684\u4e00\u79cd\u91cd\u8981\u6280\u672f\uff0c\u5b83\u4f7f\u6211\u4eec\u80fd\u591f\u5c06\u591a\u4e2a\u51fd\u6570\u7ec4\u5408\u6210\u4e00\u4e2a\u65b0\u7684\u51fd\u6570\u3002,<br \/>\n<strong>\u57fa\u672c\u8bed\u6cd5<\/strong>,\u7ec4\u5408\u4f7f\u7528<br \/>\n<code>Compose()<\/code> \u51fd\u6570\u5b8c\u6210\uff0c\u5b83\u63a5\u53d7\u4e24\u4e2a\u6216\u66f4\u591a\u51fd\u6570\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u5c06\u5b83\u4eec\u7ec4\u5408\u6210\u4e00\u4e2a\u65b0\u7684\u51fd\u6570\u3002\u65b0\u51fd\u6570\u4f9d\u6b21\u8c03\u7528\u4f20\u9012\u7ed9<br \/>\n<code>Compose()<\/code> \u7684\u51fd\u6570\uff0c\u987a\u5e8f\u662f\u4ece\u53f3\u5230\u5de6\u3002,<br \/>\n<strong>\u793a\u4f8b<\/strong>,\u8003\u8651\u4ee5\u4e0b\u4e09\u4e2a\u51fd\u6570\uff1a,\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528<br \/>\n<code>Compose()<\/code> \u7ec4\u5408\u8fd9\u4e9b\u51fd\u6570\uff1a,\u73b0\u5728\uff0c<br \/>\n<code>composed<\/code> \u51fd\u6570\u5c06\u4f9d\u6b21\u8c03\u7528<br \/>\n<code>Inc<\/code>\u3001<br \/>\n<code>Mul<\/code> \u548c<br \/>\n<code>Square<\/code> \u51fd\u6570\u3002,<br \/>\n<strong>\u5b9e\u6218<\/strong>,\u4ee5\u4e0b\u662f\u4f7f\u7528\u51fd\u6570\u94fe\u7ec4\u5408\u7684\u5b9e\u6218\u6848\u4f8b\uff1a,\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u7ec4\u5408\u4e86\u6c42\u548c\u548c\u53d6\u5e73\u65b9\u51fd\u6570\u4ee5\u8ba1\u7b97\u4e00\u7ec4\u6570\u5b57\u7684\u5e73\u5747\u5e73\u65b9\u3002,<br \/>\n<strong>\u7ed3\u8bba<\/strong>,\u51fd\u6570\u94fe\u4e2d\u7684\u7ec4\u5408\u662f\u4e00\u79cd\u5f3a\u5927\u7684\u6280\u672f\uff0c\u5b83\u4f7f\u6211\u4eec\u80fd\u591f\u521b\u5efa\u590d\u6742\u7684\u5de5\u4f5c\u6d41\u5e76\u8f7b\u677e\u5730\u91cd\u7528\u51fd\u6570\u3002\u901a\u8fc7\u7406\u89e3\u5176\u8bed\u6cd5\u548c\u5b9e\u6218\u5e94\u7528\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u5229\u7528\u8fd9\u79cd\u6280\u672f\u6765\u89e3\u51b3\u5404\u79cd\u7f16\u7a0b\u95ee\u9898\u3002,\u4ee5\u4e0a\u5c31\u662f\u672c\u6587\u7684\u5168\u90e8\u5185\u5bb9\u4e86\uff0c\u662f\u5426\u6709\u987a\u5229\u5e2e\u52a9\u4f60\u89e3\u51b3\u95ee\u9898\uff1f\u82e5\u662f\u80fd\u7ed9\u4f60\u5e26\u6765\u5b66\u4e60\u4e0a\u7684\u5e2e\u52a9\uff0c\u8bf7\u5927\u5bb6\u591a\u591a\u652f\u6301GOLANG\uff01\u66f4\u591a\u5173\u4e8eGOLANG\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u4e5f\u53ef\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\u3002,\u73cd\u60dc\u65f6\u95f4\uff0c\u52e4\u594b\u5b66\u4e60\uff01\u4eca\u5929\u7ed9\u5927\u5bb6\u5e26\u6765<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGOLANG \u51fd\u6570\u94fe\u4e2d\u5982\u4f55\u5b9e\u73b0\u7ec4\u5408\uff1f\u300b<\/span>\uff0c\u6b63\u6587\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\uff0c\u5982\u679c\u4f60\u6b63\u5728\u5b66\u4e60<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\uff0c\u6216\u8005\u662f\u5bf9<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\u6709\u7591\u95ee\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u6211\uff01\u540e\u9762\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u5185\u5bb9\u7684\uff0c\u5e0c\u671b\u90fd\u80fd\u5e2e\u5230\u6b63\u5728\u5b66\u4e60\u7684\u5927\u5bb6\uff01,<br \/>\n<b><\/b> <\/p>\n<p>\u5f53\u524d\u4f4d\u7f6e\uff1a <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span> <span>GOLANG \u51fd\u6570\u94fe\u4e2d\u5982\u4f55\u5b9e\u73b0\u7ec4\u5408\uff1f<\/span><\/p>\n<h1>GOLANG \u51fd\u6570\u94fe\u4e2d\u5982\u4f55\u5b9e\u73b0\u7ec4\u5408\uff1f<\/h1>\n<p><span>2024-10-28 13:05:12<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u73cd\u60dc\u65f6\u95f4\uff0c\u52e4\u594b\u5b66\u4e60\uff01\u4eca\u5929\u7ed9\u5927\u5bb6\u5e26\u6765<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGOLANG \u51fd\u6570\u94fe\u4e2d\u5982\u4f55\u5b9e\u73b0\u7ec4\u5408\uff1f\u300b<\/span>\uff0c\u6b63\u6587\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\uff0c\u5982\u679c\u4f60\u6b63\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\uff0c\u6216\u8005\u662f\u5bf9<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\u6709\u7591\u95ee\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u6211\uff01\u540e\u9762\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u5185\u5bb9\u7684\uff0c\u5e0c\u671b\u90fd\u80fd\u5e2e\u5230\u6b63\u5728\u5b66\u4e60\u7684\u5927\u5bb6\uff01<\/p>\n<p>\u8981\u5728 Go \u51fd\u6570\u94fe\u4e2d\u5b9e\u73b0\u7ec4\u5408\uff0c\u53ef\u4ee5\u4f7f\u7528 Compose() \u51fd\u6570\u5c06\u591a\u4e2a\u51fd\u6570\u7ec4\u5408\u6210\u4e00\u4e2a\u65b0\u51fd\u6570\uff0c\u65b0\u51fd\u6570\u4f9d\u6b21\u8c03\u7528\u4f20\u9012\u7ed9 Compose() \u7684\u51fd\u6570\uff0c\u987a\u5e8f\u662f\u4ece\u53f3\u5230\u5de6\u3002\u8fd9\u79cd\u6280\u672f\u53ef\u7528\u4e8e\u521b\u5efa\u590d\u6742\u7684\u5de5\u4f5c\u6d41\u5e76\u8f7b\u677e\u5730\u91cd\u7528\u51fd\u6570\uff0c\u4f8b\u5982\u4e0b\u9762\u7684\u5b9e\u6218\u6848\u4f8b\u4e2d\u7ec4\u5408\u51fd\u6570\u4ee5\u8ba1\u7b97\u4e00\u7ec4\u6570\u5b57\u7684\u5e73\u5747\u5e73\u65b9\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241028\/1730091897671f1b7924e0b.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u5982\u4f55\u5728 Go \u51fd\u6570\u94fe\u4e2d\u5b9e\u73b0\u7ec4\u5408<\/strong><\/p>\n<p>\u5728 Go \u4e2d\uff0c\u51fd\u6570\u94fe\u662f\u4e00\u79cd\u4ee5\u7279\u5b9a\u987a\u5e8f\u8fde\u63a5\u4e00\u7cfb\u5217\u51fd\u6570\u7684\u65b9\u5f0f\uff0c\u5b83\u5141\u8bb8\u521b\u5efa\u590d\u6742\u7684\u5de5\u4f5c\u6d41\u3002\u7ec4\u5408\u662f\u51fd\u6570\u94fe\u7684\u4e00\u79cd\u91cd\u8981\u6280\u672f\uff0c\u5b83\u4f7f\u6211\u4eec\u80fd\u591f\u5c06\u591a\u4e2a\u51fd\u6570\u7ec4\u5408\u6210\u4e00\u4e2a\u65b0\u7684\u51fd\u6570\u3002<\/p>\n<p><strong>\u57fa\u672c\u8bed\u6cd5<\/strong><\/p>\n<p>\u7ec4\u5408\u4f7f\u7528 <code>Compose()<\/code> \u51fd\u6570\u5b8c\u6210\uff0c\u5b83\u63a5\u53d7\u4e24\u4e2a\u6216\u66f4\u591a\u51fd\u6570\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u5c06\u5b83\u4eec\u7ec4\u5408\u6210\u4e00\u4e2a\u65b0\u7684\u51fd\u6570\u3002\u65b0\u51fd\u6570\u4f9d\u6b21\u8c03\u7528\u4f20\u9012\u7ed9 <code>Compose()<\/code> \u7684\u51fd\u6570\uff0c\u987a\u5e8f\u662f\u4ece\u53f3\u5230\u5de6\u3002<\/p>\n<p><strong>\u793a\u4f8b<\/strong><\/p>\n<p>\u8003\u8651\u4ee5\u4e0b\u4e09\u4e2a\u51fd\u6570\uff1a<\/p>\n<pre>\/\/ \u5c06\u6570\u5b57\u589e\u52a0 1\nfunc Inc(x int) int {\n    return x + 1\n}\n\n\/\/ \u5c06\u6570\u5b57\u4e58\u4ee5 2\nfunc Mul(x int) int {\n    return x * 2\n}\n\n\/\/ \u8ba1\u7b97\u6570\u5b57\u7684\u5e73\u65b9\nfunc Square(x int) int {\n    return x * x\n}<\/pre>\n<p>\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 <code>Compose()<\/code> \u7ec4\u5408\u8fd9\u4e9b\u51fd\u6570\uff1a<\/p>\n<pre>composed := Compose(Square, Mul, Inc)<\/pre>\n<p>\u73b0\u5728\uff0c<code>composed<\/code> \u51fd\u6570\u5c06\u4f9d\u6b21\u8c03\u7528 <code>Inc<\/code>\u3001<code>Mul<\/code> \u548c <code>Square<\/code> \u51fd\u6570\u3002<\/p>\n<p><strong>\u5b9e\u6218<\/strong><\/p>\n<p>\u4ee5\u4e0b\u662f\u4f7f\u7528\u51fd\u6570\u94fe\u7ec4\u5408\u7684\u5b9e\u6218\u6848\u4f8b\uff1a<\/p>\n<pre>\/\/ \u8ba1\u7b97\u4e00\u7ec4\u6570\u5b57\u7684\u5e73\u5747\u5e73\u65b9\uff1a\n\nnums := []int{1, 2, 3, 4, 5}\n\n\/\/ \u7ec4\u5408\u51fd\u6570\u4ee5\u8ba1\u7b97\u5e73\u5747\u5e73\u65b9\navgSquare := Compose(\n    func(xs []int) float64 { return float64(Sum(xs)) \/ float64(len(xs)) },\n    Square,\n)\n\n\/\/ \u5e94\u7528\u7ec4\u5408\u51fd\u6570\nresult := avgSquare(nums)\n\n\/\/ \u6253\u5370\u7ed3\u679c\nfmt.Println(result) \/\/ 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<\/dt>\n<dd>\n   CSS\u5982\u4f55\u8bbe\u7f6e\u591a\u884c\u6587\u672c\u7684\u53ef\u8c03\u4e0b\u5212\u7ebf\u8ddd\u79bb\uff1f\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u4e3a\u4ec0\u4e48\u4e0b\u8f7d\u4e0d\u4e86\u5fae\u4fe1\n 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