{"id":205946,"date":"2025-06-12T13:13:07","date_gmt":"2025-06-12T05:13:07","guid":{"rendered":"https:\/\/server.hk\/cnblog\/205946\/"},"modified":"2025-06-12T13:13:07","modified_gmt":"2025-06-12T05:13:07","slug":"composition-over-inheritance-in-go","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/205946\/","title":{"rendered":"Composition Over Inheritance in Go"},"content":{"rendered":"<p>\u4eca\u5929GOLANG\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aComposition Over Inheritance in Go\u300b<\/span>\uff0c\u5176\u4e2d\u6d89\u53ca\u5230\u7684\u77e5\u8bc6\u70b9\u5305\u62ec<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\uff0c\u65e0\u8bba\u4f60\u662f\u5c0f\u767d\u8fd8\u662f\u8001\u624b\uff0c\u90fd\u9002\u5408\u770b\u4e00\u770b\u54e6~\u6709\u597d\u7684\u5efa\u8bae\u4e5f\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u82e5\u662f\u770b\u5b8c\u6709\u6240\u6536\u83b7\uff0c\u4e5f\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u70b9\u8d5e\u652f\u6301\u5440\uff01\u4e00\u8d77\u52a0\u6cb9\u5b66\u4e60~,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241028\/1730124938671f9c8a9c31e.jpg\" class=\"aligncenter\">,\u5728\u8bbe\u8ba1\u8f6f\u4ef6\u65f6\uff0c\u201c\u7ec4\u5408\u4f18\u4e8e\u7ee7\u627f\u201d\u539f\u5219\u901a\u5e38\u4f1a\u5e26\u6765\u66f4\u7075\u6d3b\u3001\u53ef\u7ef4\u62a4\u7684\u4ee3\u7801\u3002 go \u4ee5\u5176\u72ec\u7279\u7684\u9762\u5411\u5bf9\u8c61\u8bbe\u8ba1\u65b9\u6cd5\uff0c\u4e25\u91cd\u4f9d\u8d56\u4e8e\u7ec4\u5408\u800c\u4e0d\u662f\u7ee7\u627f\u3002\u8ba9\u6211\u4eec\u770b\u770b\u4e3a\u4ec0\u4e48\u3002,\u5728\u4f20\u7edf\u7684 oop \u8bed\u8a00\u4e2d\uff0c\u7ee7\u627f\u5141\u8bb8\u4e00\u4e2a\u7c7b\u4ece\u53e6\u4e00\u4e2a\u7c7b\u7ee7\u627f\u884c\u4e3a\u548c\u5c5e\u6027\uff0c\u4f46\u8fd9\u53ef\u80fd\u4f1a\u5bfc\u81f4\u50f5\u5316\u7684\u3001\u96be\u4ee5\u66f4\u6539\u7684\u5c42\u6b21\u7ed3\u6784\u3002 go \u5b8c\u5168\u907f\u514d\u7ee7\u627f\uff0c\u800c\u662f\u9f13\u52b1\u7ec4\u5408\u2014\u2014\u901a\u8fc7\u7ec4\u5408\u66f4\u5c0f\u7684\u3001\u96c6\u4e2d\u7684\u7ec4\u4ef6\u6765\u6784\u5efa\u7c7b\u578b\u3002,\u60f3\u8c61\u4e00\u4e0b\uff0c\u6211\u4eec\u6b63\u5728\u4e3a\u4e00\u5bb6\u62e5\u6709\u4e0d\u540c\u7c7b\u578b\u5458\u5de5\u7684\u516c\u53f8\u5efa\u6a21\uff1a\u6709\u4e9b\u662f\u5de5\u7a0b\u5e08\uff0c\u6709\u4e9b\u662f\u7ecf\u7406\uff0c\u6709\u4e9b\u662f\u5b9e\u4e60\u751f\u3002\u6211\u4eec\u4e0d\u4f1a\u521b\u5efa\u590d\u6742\u7684\u7c7b\u5c42\u6b21\u7ed3\u6784\uff0c\u800c\u662f\u5c06\u7279\u5b9a\u884c\u4e3a\u5b9a\u4e49\u4e3a\u72ec\u7acb\u7c7b\u578b\uff0c\u7136\u540e\u7ec4\u5408\u5b83\u4eec\u3002,\u8fd9\u91cc\uff1a,\u5728 go \u4e2d\uff0c\u63a5\u53e3\u548c\u7ec4\u5408\u534f\u540c\u5de5\u4f5c\uff0c\u5141\u8bb8\u591a\u6001\u6027\u800c\u65e0\u9700\u7ee7\u627f\u3002\u4ee5\u4e0b\u662f\u6211\u4eec\u5982\u4f55\u4f7f\u7528\u5355\u4e2a\u51fd\u6570\u5904\u7406\u591a\u79cd\u5de5\u4f5c\u7c7b\u578b\uff1a<br \/>\n<br \/>,go \u5bf9\u7ec4\u5408\u800c\u4e0d\u662f\u7ee7\u627f\u7684\u504f\u597d\u4e0d\u4ec5\u4ec5\u662f\u4e00\u79cd\u8bed\u8a00\u602a\u7656\u2014\u2014\u5b83\u9f13\u52b1\u66f4\u5e72\u51c0\u3001\u66f4\u6a21\u5757\u5316\u3001\u80fd\u591f\u9002\u5e94\u53d8\u5316\u7684\u4ee3\u7801\u3002\u60a8\u53ef\u4ee5\u83b7\u5f97\u7075\u6d3b\u3001\u53ef\u91cd\u7528\u7684\u7ec4\u4ef6\uff0c\u800c\u4e0d\u662f\u50f5\u5316\u7684\u5c42\u6b21\u7ed3\u6784\uff0c\u4ece\u800c\u4f7f\u60a8\u7684\u4ee3\u7801\u5e93\u4fdd\u6301\u7075\u6d3b\u4e14\u6613\u4e8e\u7ef4\u62a4\u3002,\u4eca\u5929\u5173\u4e8e\u300aComposition Over Inheritance in Go\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728GOLANG\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01,\u53ef\u91cd\u7528\u6027\uff1a\u884c\u4e3a\u662f\u6a21\u5757\u5316\u7684\uff0c\u56e0\u6b64\u6211\u4eec\u53ef\u4ee5\u8f7b\u677e\u5730\u4ee5\u4e0d\u540c\u7684\u65b9\u5f0f\u7ec4\u5408\u5b83\u4eec\u3002,\u7075\u6d3b\u6027\uff1a\u53ef\u4ee5\u5728\u4e0d\u7834\u574f\u73b0\u6709\u4ee3\u7801\u7684\u60c5\u51b5\u4e0b\u6dfb\u52a0\u65b0\u7c7b\u578b\u6216\u884c\u4e3a\u3002,\u7b80\u5355\u6027\uff1a\u6bcf\u4e2a\u884c\u4e3a\u90fd\u5c01\u88c5\u5728\u5176\u7ed3\u6784\u4e2d\uff0c\u4f7f\u5176\u6613\u4e8e\u6269\u5c55\u3002,manager \u8fd8\u5d4c\u5165\u4e86 manageable\uff0c\u8d4b\u4e88\u4ed6\u4eec\u56e2\u961f\u7ba1\u7406\u80fd\u529b\u3002,\u5de5\u7a0b\u5e08\u548c\u7ecf\u7406\u5d4c\u5165 payable\uff0c\u7ed9\u4ed6\u4eec\u53d1\u85aa\u6c34\u3002,\u6bcf\u79cd\u7c7b\u578b\u5355\u72ec\u5b9e\u73b0 work()\uff0c\u6ee1\u8db3 worker \u63a5\u53e3\u3002,\u4eca\u5929GOLANG\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aComposition Over Inheritance in Go\u300b<\/span>\uff0c\u5176\u4e2d\u6d89\u53ca\u5230\u7684\u77e5\u8bc6\u70b9\u5305\u62ec<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\uff0c\u65e0\u8bba\u4f60\u662f\u5c0f\u767d\u8fd8\u662f\u8001\u624b\uff0c\u90fd\u9002\u5408\u770b\u4e00\u770b\u54e6~\u6709\u597d\u7684\u5efa\u8bae\u4e5f\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u82e5\u662f\u770b\u5b8c\u6709\u6240\u6536\u83b7\uff0c\u4e5f\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u70b9\u8d5e\u652f\u6301\u5440\uff01\u4e00\u8d77\u52a0\u6cb9\u5b66\u4e60~,<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>Composition Over Inheritance in Go<\/span><\/p>\n<h1>Composition Over Inheritance in Go<\/h1>\n<p><span>\u6765\u6e90\uff1adev.to<\/span><br \/>\n<span>2024-10-28 22:15:54<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u4eca\u5929GOLANG\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aComposition Over Inheritance in Go\u300b<\/span>\uff0c\u5176\u4e2d\u6d89\u53ca\u5230\u7684\u77e5\u8bc6\u70b9\u5305\u62ec<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\uff0c\u65e0\u8bba\u4f60\u662f\u5c0f\u767d\u8fd8\u662f\u8001\u624b\uff0c\u90fd\u9002\u5408\u770b\u4e00\u770b\u54e6~\u6709\u597d\u7684\u5efa\u8bae\u4e5f\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u82e5\u662f\u770b\u5b8c\u6709\u6240\u6536\u83b7\uff0c\u4e5f\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u70b9\u8d5e\u652f\u6301\u5440\uff01\u4e00\u8d77\u52a0\u6cb9\u5b66\u4e60~<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241028\/1730124938671f9c8a9c31e.jpg\" class=\"aligncenter\"><\/p>\n<p>\u5728\u8bbe\u8ba1\u8f6f\u4ef6\u65f6\uff0c\u201c\u7ec4\u5408\u4f18\u4e8e\u7ee7\u627f\u201d\u539f\u5219\u901a\u5e38\u4f1a\u5e26\u6765\u66f4\u7075\u6d3b\u3001\u53ef\u7ef4\u62a4\u7684\u4ee3\u7801\u3002 go \u4ee5\u5176\u72ec\u7279\u7684\u9762\u5411\u5bf9\u8c61\u8bbe\u8ba1\u65b9\u6cd5\uff0c\u4e25\u91cd\u4f9d\u8d56\u4e8e\u7ec4\u5408\u800c\u4e0d\u662f\u7ee7\u627f\u3002\u8ba9\u6211\u4eec\u770b\u770b\u4e3a\u4ec0\u4e48\u3002<\/p>\n<h2> \u4e3a\u4ec0\u4e48 go \u66f4\u559c\u6b22\u7ec4\u5408 <\/h2>\n<p>\u5728\u4f20\u7edf\u7684 oop \u8bed\u8a00\u4e2d\uff0c\u7ee7\u627f\u5141\u8bb8\u4e00\u4e2a\u7c7b\u4ece\u53e6\u4e00\u4e2a\u7c7b\u7ee7\u627f\u884c\u4e3a\u548c\u5c5e\u6027\uff0c\u4f46\u8fd9\u53ef\u80fd\u4f1a\u5bfc\u81f4\u50f5\u5316\u7684\u3001\u96be\u4ee5\u66f4\u6539\u7684\u5c42\u6b21\u7ed3\u6784\u3002 go \u5b8c\u5168\u907f\u514d\u7ee7\u627f\uff0c\u800c\u662f\u9f13\u52b1\u7ec4\u5408\u2014\u2014\u901a\u8fc7\u7ec4\u5408\u66f4\u5c0f\u7684\u3001\u96c6\u4e2d\u7684\u7ec4\u4ef6\u6765\u6784\u5efa\u7c7b\u578b\u3002<\/p>\n<h2> \u884c\u52a8\u4e2d\u7684\u4f5c\u6587 <\/h2>\n<p>\u60f3\u8c61\u4e00\u4e0b\uff0c\u6211\u4eec\u6b63\u5728\u4e3a\u4e00\u5bb6\u62e5\u6709\u4e0d\u540c\u7c7b\u578b\u5458\u5de5\u7684\u516c\u53f8\u5efa\u6a21\uff1a\u6709\u4e9b\u662f\u5de5\u7a0b\u5e08\uff0c\u6709\u4e9b\u662f\u7ecf\u7406\uff0c\u6709\u4e9b\u662f\u5b9e\u4e60\u751f\u3002\u6211\u4eec\u4e0d\u4f1a\u521b\u5efa\u590d\u6742\u7684\u7c7b\u5c42\u6b21\u7ed3\u6784\uff0c\u800c\u662f\u5c06\u7279\u5b9a\u884c\u4e3a\u5b9a\u4e49\u4e3a\u72ec\u7acb\u7c7b\u578b\uff0c\u7136\u540e\u7ec4\u5408\u5b83\u4eec\u3002<\/p>\n<h3> \u793a\u4f8b\uff1ago \u4e2d\u7684 worker \u884c\u4e3a <\/h3>\n<pre>package main\n\nimport \"fmt\"\n\ntype worker interface {\n    work()\n}\n\ntype payable struct {\n    salary int\n}\n\nfunc (p payable) getsalary() int {\n    return p.salary\n}\n\ntype manageable struct{}\n\nfunc (m manageable) manage() {\n    fmt.println(\"managing team\")\n}\n\ntype engineer struct {\n    payable\n}\n\nfunc (e engineer) work() {\n    fmt.println(\"engineering work being done\")\n}\n\ntype manager struct {\n    payable\n    manageable\n}\n\nfunc (m manager) work() {\n    fmt.println(\"managerial work being done\")\n}\n<\/pre>\n<p>\u8fd9\u91cc\uff1a<\/p>\n<ul>\n<li> \u5de5\u7a0b\u5e08\u548c\u7ecf\u7406\u5d4c\u5165 payable\uff0c\u7ed9\u4ed6\u4eec\u53d1\u85aa\u6c34\u3002<\/li>\n<li> manager \u8fd8\u5d4c\u5165\u4e86 manageable\uff0c\u8d4b\u4e88\u4ed6\u4eec\u56e2\u961f\u7ba1\u7406\u80fd\u529b\u3002<\/li>\n<li>\u6bcf\u79cd\u7c7b\u578b\u5355\u72ec\u5b9e\u73b0 work()\uff0c\u6ee1\u8db3 worker \u63a5\u53e3\u3002<\/li>\n<\/ul>\n<h2> \u7ec4\u5408\u7684\u597d\u5904 <\/h2>\n<ul>\n<li>\u7b80\u5355\u6027\uff1a\u6bcf\u4e2a\u884c\u4e3a\u90fd\u5c01\u88c5\u5728\u5176\u7ed3\u6784\u4e2d\uff0c\u4f7f\u5176\u6613\u4e8e\u6269\u5c55\u3002<\/li>\n<li>\u7075\u6d3b\u6027\uff1a\u53ef\u4ee5\u5728\u4e0d\u7834\u574f\u73b0\u6709\u4ee3\u7801\u7684\u60c5\u51b5\u4e0b\u6dfb\u52a0\u65b0\u7c7b\u578b\u6216\u884c\u4e3a\u3002<\/li>\n<li>\u53ef\u91cd\u7528\u6027\uff1a\u884c\u4e3a\u662f\u6a21\u5757\u5316\u7684\uff0c\u56e0\u6b64\u6211\u4eec\u53ef\u4ee5\u8f7b\u677e\u5730\u4ee5\u4e0d\u540c\u7684\u65b9\u5f0f\u7ec4\u5408\u5b83\u4eec\u3002<\/li>\n<\/ul>\n<h2> \u4f7f\u7528\u7ec4\u5408\u63a5\u53e3 <\/h2>\n<p>\u5728 go \u4e2d\uff0c\u63a5\u53e3\u548c\u7ec4\u5408\u534f\u540c\u5de5\u4f5c\uff0c\u5141\u8bb8\u591a\u6001\u6027\u800c\u65e0\u9700\u7ee7\u627f\u3002\u4ee5\u4e0b\u662f\u6211\u4eec\u5982\u4f55\u4f7f\u7528\u5355\u4e2a\u51fd\u6570\u5904\u7406\u591a\u79cd\u5de5\u4f5c\u7c7b\u578b\uff1a<\/p>\n<pre>func DescribeWorker(w Worker) {\n    w.Work()\n}\n\nfunc main() {\n    engineer := Engineer{Payable{Salary: 80000}}\n    manager := Manager{Payable{Salary: 100000}, Manageable{}}\n    DescribeWorker(engineer)\n    DescribeWorker(manager)\n}\n<\/pre>\n<p>go \u5bf9\u7ec4\u5408\u800c\u4e0d\u662f\u7ee7\u627f\u7684\u504f\u597d\u4e0d\u4ec5\u4ec5\u662f\u4e00\u79cd\u8bed\u8a00\u602a\u7656\u2014\u2014\u5b83\u9f13\u52b1\u66f4\u5e72\u51c0\u3001\u66f4\u6a21\u5757\u5316\u3001\u80fd\u591f\u9002\u5e94\u53d8\u5316\u7684\u4ee3\u7801\u3002\u60a8\u53ef\u4ee5\u83b7\u5f97\u7075\u6d3b\u3001\u53ef\u91cd\u7528\u7684\u7ec4\u4ef6\uff0c\u800c\u4e0d\u662f\u50f5\u5316\u7684\u5c42\u6b21\u7ed3\u6784\uff0c\u4ece\u800c\u4f7f\u60a8\u7684\u4ee3\u7801\u5e93\u4fdd\u6301\u7075\u6d3b\u4e14\u6613\u4e8e\u7ef4\u62a4\u3002<\/p>\n<p>\u4eca\u5929\u5173\u4e8e\u300aComposition Over Inheritance in Go\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728GOLANG\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n<p> \u7248\u672c\u58f0\u660e \u672c\u6587\u8f6c\u8f7d\u4e8e\uff1adev.to \u5982\u6709\u4fb5\u72af\uff0c\u8bf7\u8054\u7cfb \u5220\u9664  <\/p>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u6dd8\u5ba2\u52a9\u624b\u548c\u63a8\u5ba2\u52a9\u624b\u7684\u533a\u522b\uff1f\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u5bb6\u7528\u7535\u8111\u600e\u4e48\u4e0b\u8f7d\u76f4\u64ad\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u4eca\u5929GOLANG\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86 \u300a&#46;&#46;&#46;<\/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-205946","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205946","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=205946"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205946\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=205946"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=205946"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=205946"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}