{"id":3655,"date":"2026-03-26T04:44:15","date_gmt":"2026-03-25T20:44:15","guid":{"rendered":"https:\/\/www.go2posts.com\/cn\/polymorphism-guide-clean-code-implementation\/"},"modified":"2026-03-26T04:44:15","modified_gmt":"2026-03-25T20:44:15","slug":"polymorphism-guide-clean-code-implementation","status":"publish","type":"post","link":"https:\/\/www.go2posts.com\/cn\/polymorphism-guide-clean-code-implementation\/","title":{"rendered":"OOAD\u6307\u5357\uff1a\u9762\u5411\u5bf9\u8c61\u8bbe\u8ba1\u4e2d\u5b9e\u73b0\u6574\u6d01\u4ee3\u7801\u7684\u591a\u6001\u6027\u6307\u5357"},"content":{"rendered":"<p>\u591a\u6001\u6027\u662f\u7a33\u5065\u9762\u5411\u5bf9\u8c61\u8bbe\u8ba1\u7684\u57fa\u77f3\u3002\u5b83\u5141\u8bb8\u7cfb\u7edf\u901a\u8fc7\u4e00\u4e2a\u901a\u7528\u63a5\u53e3\u5904\u7406\u4e0d\u540c\u7c7b\u578b\u7684\u5bf9\u8c61\u3002\u8fd9\u79cd\u7075\u6d3b\u6027\u964d\u4f4e\u4e86\u590d\u6742\u6027\uff0c\u63d0\u5347\u4e86\u53ef\u7ef4\u62a4\u6027\u3002\u6b63\u786e\u5e94\u7528\u65f6\uff0c\u80fd\u591f\u5e26\u6765\u66f4\u6613\u4e8e\u6269\u5c55\u548c\u4fee\u6539\u7684\u4ee3\u7801\u3002\u672c\u6307\u5357\u63a2\u8ba8\u5982\u4f55\u6709\u6548\u5229\u7528\u591a\u6001\u6027\uff0c\u4ee5\u5b9e\u73b0\u6574\u6d01\u4ee3\u7801\u7684\u539f\u5219\u3002<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Kawaii-style infographic explaining polymorphism for clean code implementation: features cute pastel coding robot mascot, visual comparison of compile-time vs runtime polymorphism, implementation methods (inheritance, interfaces, abstract classes), SOLID principles connection with shield badges, five key benefits (readability, testability, extensibility, maintainability, scalability), common pitfalls to avoid, and real-world examples (data pipelines, rendering engines, payment systems) - all in soft mint, lavender, peach and sky blue colors with sparkles, hearts, and playful English text on 16:9 layout\" decoding=\"async\" src=\"https:\/\/www.go2posts.com\/wp-content\/uploads\/2026\/03\/kawaii-polymorphism-clean-code-guide-infographic.jpg\"\/><\/figure>\n<\/div>\n<h2>\ud83d\udd0d 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\u5185\u90e8\u5b9e\u73b0\u7ec6\u8282\u5bf9\u5ba2\u6237\u7aef\u4ee3\u7801\u9690\u85cf\u3002<\/li>\n<\/ul>\n<p>\u8bbe\u60f3\u4f60\u6709\u591a\u4e2a\u652f\u4ed8\u5904\u7406\u5668\u7684\u60c5\u51b5\u3002\u5982\u679c\u6ca1\u6709\u591a\u6001\u6027\uff0c\u4f60\u5c06\u9700\u8981\u4e3a\u6bcf\u79cd\u7c7b\u578b\u7f16\u5199\u72ec\u7acb\u7684\u903b\u8f91\u3002\u800c\u4f7f\u7528\u591a\u6001\u6027\u540e\uff0c\u4f60\u53ef\u4ee5\u5c06\u5b83\u4eec\u89c6\u4e3a\u5355\u4e00\u5b9e\u4f53\uff0c\u4ece\u800c\u663e\u8457\u7b80\u5316\u5de5\u4f5c\u6d41\u7a0b\u3002<\/p>\n<h2>\u2699\ufe0f \u591a\u6001\u6027\u7684\u7c7b\u578b<\/h2>\n<p>\u7406\u89e3\u7f16\u8bd1\u65f6\u591a\u6001\u6027\u4e0e\u8fd0\u884c\u65f6\u591a\u6001\u6027\u4e4b\u95f4\u7684\u533a\u522b\uff0c\u5bf9\u4e8e\u505a\u51fa\u660e\u667a\u7684\u8bbe\u8ba1\u51b3\u7b56\u81f3\u5173\u91cd\u8981\u3002\u6bcf\u79cd\u7c7b\u578b\u5728\u67b6\u6784\u4e2d\u627f\u62c5\u4e0d\u540c\u7684\u4f5c\u7528\u3002<\/p>\n<h3>1\ufe0f\u20e3 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\u8fd0\u884c\u65f6\u591a\u6001\u6027<\/h3>\n<p>\u8fd9\u53d1\u751f\u5728\u51b3\u7b56\u88ab\u63a8\u8fdf\u5230\u7a0b\u5e8f\u6267\u884c\u65f6\u3002\u5b83\u4f9d\u8d56\u4e8e\u52a8\u6001\u65b9\u6cd5\u5206\u6d3e\u3002<\/p>\n<ul>\n<li><strong>\u65b9\u6cd5\u91cd\u5199\uff1a<\/strong> \u5b50\u7c7b\u63d0\u4f9b\u5176\u7236\u7c7b\u4e2d\u5df2\u5b9a\u4e49\u65b9\u6cd5\u7684\u7279\u5b9a\u5b9e\u73b0\u3002<\/li>\n<li><strong>\u52a8\u6001\u7ed1\u5b9a\uff1a<\/strong> \u7cfb\u7edf\u5728\u8fd0\u884c\u65f6\u8bc6\u522b\u5b9e\u9645\u7684\u5bf9\u8c61\u7c7b\u578b\u3002<\/li>\n<li><strong> \u4f7f\u7528\u573a\u666f\uff1a<\/strong> \u5bf9\u63d2\u4ef6\u67b6\u6784\u548c\u53ef\u6269\u5c55\u7cfb\u7edf\u81f3\u5173\u91cd\u8981\u3002<\/li>\n<\/ul>\n<h2>\ud83d\udee0\ufe0f \u5b9e\u73b0\u673a\u5236<\/h2>\n<p>\u5b58\u5728\u4e00\u4e9b\u7279\u5b9a\u7684\u7ed3\u6784\u6a21\u5f0f\u7528\u4e8e\u5b9e\u73b0\u591a\u6001\u6027\u3002\u9009\u62e9\u5408\u9002\u7684\u673a\u5236\u4f1a\u5f71\u54cd\u8026\u5408\u5ea6\u548c\u7075\u6d3b\u6027\u3002<\/p>\n<h3>\ud83d\udd39 \u7ee7\u627f<\/h3>\n<p>\u7ee7\u627f\u5141\u8bb8\u4e00\u4e2a\u65b0\u7c7b\u4ece\u73b0\u6709\u7c7b\u4e2d\u6d3e\u751f\u5c5e\u6027\u548c\u65b9\u6cd5\u3002\u5b83\u521b\u5efa\u4e86\u4e00\u79cd\u201c\u662f\u2026\u2026\u7684\u4e00\u79cd\u201d\u5173\u7cfb\u3002<\/p>\n<ul>\n<li><strong>\u4f18\u70b9\uff1a<\/strong> \u4fc3\u8fdb\u4ee3\u7801\u91cd\u7528\u5e76\u5efa\u7acb\u6e05\u6670\u7684\u5c42\u6b21\u7ed3\u6784\u3002<\/li>\n<li><strong>\u98ce\u9669\uff1a<\/strong> \u6df1\u5c42\u7684\u7ee7\u627f\u6811\u53ef\u80fd\u53d8\u5f97\u8106\u5f31\u4e14\u96be\u4ee5\u4fee\u6539\u3002<\/li>\n<li><strong>\u6700\u4f73\u5b9e\u8df5\uff1a<\/strong> \u5c06\u7ee7\u627f\u6df1\u5ea6\u9650\u5236\u5728\u4e24\u5230\u4e09\u5c42\uff0c\u4ee5\u4fdd\u6301\u6e05\u6670\u6027\u3002<\/li>\n<\/ul>\n<h3>\ud83d\udd39 \u63a5\u53e3<\/h3>\n<p>\u63a5\u53e3\u5728\u4e0d\u63d0\u4f9b\u5b9e\u73b0\u7684\u60c5\u51b5\u4e0b\u5b9a\u4e49\u5951\u7ea6\u3002\u5b83\u4eec\u5173\u6ce8\u884c\u4e3a\u800c\u975e\u72b6\u6001\u3002<\/p>\n<ul>\n<li><strong>\u7075\u6d3b\u6027\uff1a<\/strong> \u4e00\u4e2a\u7c7b\u53ef\u4ee5\u540c\u65f6\u5b9e\u73b0\u591a\u4e2a\u63a5\u53e3\u3002<\/li>\n<li><strong> \u89e3\u8026\uff1a<\/strong> \u5ba2\u6237\u7aef\u4f9d\u8d56\u4e8e\u63a5\u53e3\uff0c\u800c\u975e\u5177\u4f53\u7c7b\u3002<\/li>\n<li><strong> \u6807\u51c6\u5316\uff1a<\/strong> \u786e\u4fdd\u6240\u6709\u5b9e\u73b0\u7c7b\u90fd\u9075\u5faa\u7279\u5b9a\u7684\u65b9\u6cd5\u7b7e\u540d\u3002<\/li>\n<\/ul>\n<h3>\ud83d\udd39 \u62bd\u8c61\u7c7b<\/h3>\n<p>\u62bd\u8c61\u7c7b\u53ef\u4ee5\u63d0\u4f9b\u90e8\u5206\u5b9e\u73b0\u548c\u5171\u4eab\u72b6\u6001\u3002\u5b83\u4eec\u4ecb\u4e8e\u5177\u4f53\u7c7b\u548c\u63a5\u53e3\u4e4b\u95f4\u3002<\/p>\n<ul>\n<li><strong>\u5171\u4eab\u4ee3\u7801\uff1a<\/strong> \u516c\u5171\u903b\u8f91\u53ef\u4ee5\u5728\u7236\u7c7b\u4e2d\u7f16\u5199\u4e00\u6b21\u3002<\/li>\n<li><strong>\u72b6\u6001\u7ba1\u7406\uff1a<\/strong> \u53ef\u4ee5\u7ef4\u62a4\u5b50\u7c7b\u7ee7\u627f\u7684\u53d8\u91cf\u3002<\/li>\n<li><strong>\u9650\u5236\uff1a<\/strong> \u4e00\u4e2a\u7c7b\u901a\u5e38\u53ea\u80fd\u6269\u5c55\u4e00\u4e2a\u62bd\u8c61\u7c7b\u3002<\/li>\n<\/ul>\n<h2>\ud83d\udcca \u5b9e\u73b0\u7b56\u7565\u7684\u6bd4\u8f83<\/h2>\n<p>\u4e0b\u8868\u7a81\u51fa\u4e86\u5e38\u89c1\u65b9\u6cd5\u4e4b\u95f4\u7684\u5dee\u5f02\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u7279\u6027<\/th>\n<th>\u63a5\u53e3<\/th>\n<th>\u62bd\u8c61\u7c7b<\/th>\n<th>\u5177\u4f53\u7c7b<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u591a\u91cd\u7ee7\u627f<\/td>\n<td>\u662f<\/td>\n<td>\u5426<\/td>\n<td>\u662f\uff08\u901a\u8fc7\u7ec4\u5408\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u72b6\u6001\u7ba1\u7406<\/td>\n<td>\u5426\uff08\u4e0d\u5141\u8bb8\u5b57\u6bb5\uff09<\/td>\n<td>\u662f<\/td>\n<td>\u662f<\/td>\n<\/tr>\n<tr>\n<td>\u5b9e\u73b0<\/td>\n<td>\u65e0\uff08\u62bd\u8c61\uff09<\/td>\n<td>\u90e8\u5206<\/td>\n<td>\u5b8c\u6574<\/td>\n<\/tr>\n<tr>\n<td>\u7075\u6d3b\u6027<\/td>\n<td>\u9ad8<\/td>\n<td>\u4e2d<\/td>\n<td>\u4f4e<\/td>\n<\/tr>\n<tr>\n<td>\u7ed1\u5b9a\u7c7b\u578b<\/td>\n<td>\u8fd0\u884c\u65f6<\/td>\n<td>\u8fd0\u884c\u65f6<\/td>\n<td>\u7f16\u8bd1\u65f6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\ud83e\uddf1 \u4e0eSOLID\u539f\u5219\u7684\u5173\u8054<\/h2>\n<p>\u591a\u6001\u6027\u4e0d\u662f\u4e00\u4e2a\u5b64\u7acb\u7684\u6982\u5ff5\uff1b\u5b83\u4e0e\u5df2\u786e\u7acb\u7684\u8bbe\u8ba1\u539f\u5219\u534f\u540c\u5de5\u4f5c\u3002<\/p>\n<h3>\ud83d\udfe2 \u5f00\u95ed\u539f\u5219<\/h3>\n<p>\u8be5\u539f\u5219\u6307\u51fa\uff0c\u5b9e\u4f53\u5e94\u5bf9\u5916\u6269\u5c55\u5f00\u653e\uff0c\u5bf9\u5185\u90e8\u4fee\u6539\u5c01\u95ed\u3002\u591a\u6001\u6027\u901a\u8fc7\u5141\u8bb8\u901a\u8fc7\u65b0\u7c7b\u6dfb\u52a0\u65b0\u884c\u4e3a\uff0c\u800c\u65e0\u9700\u4fee\u6539\u73b0\u6709\u4ee3\u7801\u6765\u652f\u6301\u8fd9\u4e00\u70b9\u3002<\/p>\n<ul>\n<li><strong>\u793a\u4f8b\uff1a<\/strong> \u5728\u4e0d\u66f4\u6539\u62a5\u544a\u5f15\u64ce\u903b\u8f91\u7684\u60c5\u51b5\u4e0b\u6dfb\u52a0\u65b0\u7684\u62a5\u544a\u7c7b\u578b\u3002<\/li>\n<li><strong>\u7ed3\u679c\uff1a<\/strong>\u964d\u4f4e\u4e86\u5728\u7a33\u5b9a\u4ee3\u7801\u4e2d\u5f15\u5165\u9519\u8bef\u7684\u98ce\u9669\u3002<\/li>\n<\/ul>\n<h3>\ud83d\udfe2 \u4f9d\u8d56\u5012\u7f6e\u539f\u5219<\/h3>\n<p>\u9ad8\u5c42\u6a21\u5757\u4e0d\u5e94\u4f9d\u8d56\u4e8e\u4f4e\u5c42\u6a21\u5757\u3002\u4e24\u8005\u90fd\u5e94\u4f9d\u8d56\u4e8e\u62bd\u8c61\u3002\u591a\u6001\u6027\u901a\u8fc7\u5141\u8bb8\u9ad8\u5c42\u903b\u8f91\u4f9d\u8d56\u4e8e\u62bd\u8c61\u63a5\u53e3\u6765\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002<\/p>\n<ul>\n<li><strong>\u4f18\u70b9\uff1a<\/strong>\u964d\u4f4e\u7ec4\u4ef6\u4e4b\u95f4\u7684\u8026\u5408\u5ea6\u3002<\/li>\n<li><strong>\u7ed3\u679c\uff1a<\/strong>\u5728\u6d4b\u8bd5\u6216\u7ef4\u62a4\u671f\u95f4\u66f4\u5bb9\u6613\u66ff\u6362\u5b9e\u73b0\u3002<\/li>\n<\/ul>\n<h3>\ud83d\udfe2 \u91cc\u6c0f\u66ff\u6362\u539f\u5219<\/h3>\n<p>\u7236\u7c7b\u7684\u5bf9\u8c61\u5e94\u80fd\u88ab\u5176\u5b50\u7c7b\u7684\u5bf9\u8c61\u66ff\u6362\uff0c\u800c\u4e0d\u4f1a\u7834\u574f\u5e94\u7528\u7a0b\u5e8f\u3002\u8fd9\u786e\u4fdd\u4e86\u591a\u6001\u6027\u4e0d\u4f1a\u5f15\u5165\u610f\u5916\u884c\u4e3a\u3002<\/p>\n<ul>\n<li><strong>\u7ea6\u675f\uff1a<\/strong>\u5b50\u7c7b\u5fc5\u987b\u9075\u5b88\u7236\u7c7b\u7684\u5951\u7ea6\u3002<\/li>\n<li><strong>\u8b66\u544a\uff1a<\/strong>\u66f4\u6539\u524d\u7f6e\u6761\u4ef6\u6216\u540e\u7f6e\u6761\u4ef6\u53ef\u80fd\u4f1a\u8fdd\u53cd\u6b64\u89c4\u5219\u3002<\/li>\n<\/ul>\n<h2>\u2705 \u5bf9\u6e05\u6d01\u4ee3\u7801\u7684\u597d\u5904<\/h2>\n<p>\u5b9e\u73b0\u591a\u6001\u6027\u80fd\u663e\u8457\u63d0\u5347\u4ee3\u7801\u5e93\u7684\u8d28\u91cf\u3002<\/p>\n<ul>\n<li><strong>\u53ef\u8bfb\u6027\uff1a<\/strong>\u4ee3\u7801\u53d8\u5f97\u66f4\u52a0\u58f0\u660e\u5f0f\u3002\u4f60\u53ef\u4ee5\u8c03\u7528\u65b9\u6cd5\uff0c\u800c\u65e0\u9700\u62c5\u5fc3\u5177\u4f53\u7684\u7c7b\u578b\u3002<\/li>\n<li><strong>\u53ef\u6d4b\u8bd5\u6027\uff1a<\/strong>\u63a5\u53e3\u4f7f\u5f97\u5728\u5355\u5143\u6d4b\u8bd5\u4e2d\u8f7b\u677e\u6a21\u62df\u4f9d\u8d56\u9879\u6210\u4e3a\u53ef\u80fd\u3002<\/li>\n<li><strong>\u53ef\u6269\u5c55\u6027\uff1a<\/strong>\u65b0\u529f\u80fd\u53ef\u4ee5\u901a\u8fc7\u65b0\u589e\u5b9e\u73b0\u6765\u6dfb\u52a0\uff0c\u800c\u65e0\u9700\u4fee\u6539\u73b0\u6709\u903b\u8f91\u3002<\/li>\n<li><strong>\u53ef\u7ef4\u62a4\u6027\uff1a<\/strong>\u67d0\u4e00\u533a\u57df\u7684\u66f4\u6539\u4e0d\u4f1a\u5728\u6574\u4e2a\u7cfb\u7edf\u4e2d\u5f15\u53d1\u8fde\u9501\u53cd\u5e94\u3002<\/li>\n<li><strong>\u53ef\u6269\u5c55\u6027\uff1a<\/strong>\u7cfb\u7edf\u53ef\u4ee5\u5728\u4e0d\u53d8\u6210\u96be\u4ee5\u7ef4\u62a4\u7684\u6df7\u4e71\u4ee3\u7801\u7684\u60c5\u51b5\u4e0b\u589e\u957f\u590d\u6742\u6027\u3002<\/li>\n<\/ul>\n<h2>\u26a0\ufe0f \u5e38\u89c1\u9677\u9631\u4e0e\u53cd\u6a21\u5f0f<\/h2>\n<p>\u867d\u7136\u529f\u80fd\u5f3a\u5927\uff0c\u4f46\u591a\u6001\u6027\u53ef\u80fd\u88ab\u8bef\u7528\u3002\u4e86\u89e3\u5e94\u907f\u514d\u4ec0\u4e48\uff0c\u4e0e\u77e5\u9053\u5982\u4f55\u5e94\u7528\u5b83\u540c\u6837\u91cd\u8981\u3002<\/p>\n<h3>\ud83d\udd34 \u8fc7\u5ea6\u8bbe\u8ba1<\/h3>\n<p>\u4e3a\u7b80\u5355\u4efb\u52a1\u521b\u5efa\u590d\u6742\u7684\u7ee7\u627f\u5c42\u6b21\u4f1a\u5e26\u6765\u4e0d\u5fc5\u8981\u7684\u5f00\u9500\u3002\u5e76\u975e\u6bcf\u4e2a\u95ee\u9898\u90fd\u9700\u8981\u591a\u6001\u6027\u3002<\/p>\n<ul>\n<li><strong>\u5f81\u5146\uff1a<\/strong>\u7ee7\u627f\u5c42\u6b21\u5f88\u6df1\u4f46\u5171\u4eab\u903b\u8f91\u5f88\u5c11\u3002<\/li>\n<li><strong>\u4fee\u590d\uff1a<\/strong> \u5728\u9002\u5f53\u7684\u60c5\u51b5\u4e0b\u4f7f\u7528\u7b80\u5355\u7684\u6761\u4ef6\u903b\u8f91\u6216\u7ec4\u5408\u3002<\/li>\n<\/ul>\n<h3>\ud83d\udd34 \u8026\u5408\u8fc7\u7d27<\/h3>\n<p>\u5373\u4f7f\u4f7f\u7528\u4e86\u63a5\u53e3\uff0c\u5982\u679c\u7c7b\u4f9d\u8d56\u4e8e\u5177\u4f53\u7684\u5b9e\u73b0\u7ec6\u8282\uff0c\u4ecd\u7136\u53ef\u80fd\u53d8\u5f97\u8026\u5408\u8fc7\u7d27\u3002<\/p>\n<ul>\n<li><strong>\u5f81\u5146\uff1a<\/strong> \u65b9\u6cd5\u8fd4\u56de\u5177\u4f53\u7c7b\u578b\uff0c\u800c\u4e0d\u662f\u63a5\u53e3\u3002<\/li>\n<li><strong>\u4fee\u590d\uff1a<\/strong> \u786e\u4fdd\u7b7e\u540d\u4f7f\u7528\u62bd\u8c61\u5c42\u3002<\/li>\n<\/ul>\n<h3>\ud83d\udd34 \u201c\u4e0a\u5e1d\u7c7b\u201d<\/h3>\n<p>\u4e00\u4e2a\u7c7b\u5904\u7406\u8fc7\u591a\u7684\u591a\u6001\u884c\u4e3a\uff0c\u8fdd\u53cd\u4e86\u5355\u4e00\u804c\u8d23\u539f\u5219\u3002<\/p>\n<ul>\n<li><strong>\u5f81\u5146\uff1a<\/strong> \u4e00\u4e2a\u62e5\u6709\u6570\u767e\u4e2a\u65b9\u6cd5\u5e76\u5b9e\u73b0\u5404\u79cd\u63a5\u53e3\u7684\u7c7b\u3002<\/li>\n<li><strong>\u4fee\u590d\uff1a<\/strong> \u5c06\u804c\u8d23\u62c6\u5206\u4e3a\u66f4\u5c0f\u3001\u66f4\u4e13\u6ce8\u7684\u7c7b\u3002<\/li>\n<\/ul>\n<h3>\ud83d\udd34 \u8fc7\u5ea6\u62bd\u8c61<\/h3>\n<p>\u4e3a\u6bcf\u4e2a\u7c7b\u90fd\u521b\u5efa\u63a5\u53e3\u4f1a\u4f7f\u4ee3\u7801\u66f4\u96be\u5bfc\u822a\u3002<\/p>\n<ul>\n<li><strong>\u5f81\u5146\uff1a<\/strong> \u63a5\u53e3\u8fc7\u591a\uff0c\u4f46\u53ea\u6709\u4e00\u4e2a\u5b9e\u73b0\u3002<\/li>\n<li><strong>\u4fee\u590d\uff1a<\/strong> \u53ea\u6709\u5728\u9884\u671f\u6709\u591a\u4e2a\u5b9e\u73b0\u65f6\u624d\u5f15\u5165\u63a5\u53e3\u3002<\/li>\n<\/ul>\n<h2>\ud83d\ude80 \u5206\u6b65\u5b9e\u65bd\u7b56\u7565<\/h2>\n<p>\u9075\u5faa\u6b64\u5de5\u4f5c\u6d41\u7a0b\uff0c\u4ee5\u6709\u6548\u5f15\u5165\u591a\u6001\u6027\u5230\u4f60\u7684\u9879\u76ee\u4e2d\u3002<\/p>\n<ol>\n<li><strong>\u8bc6\u522b\u53d8\u5316\uff1a<\/strong> \u5bfb\u627e\u91cd\u590d\u4f46\u6709\u7ec6\u5fae\u5dee\u522b\u7684\u4ee3\u7801\u3002\u8fd9\u4e9b\u662f\u62bd\u8c61\u7684\u5019\u9009\u5bf9\u8c61\u3002<\/li>\n<li><strong>\u5b9a\u4e49\u5951\u7ea6\uff1a<\/strong> \u521b\u5efa\u4e00\u4e2a\u63cf\u8ff0\u6240\u9700\u884c\u4e3a\u7684\u63a5\u53e3\u3002<\/li>\n<li><strong>\u5b9e\u73b0\u53d8\u4f53\uff1a<\/strong> \u6784\u5efa\u6ee1\u8db3\u5951\u7ea6\u7684\u5177\u4f53\u7c7b\u3002<\/li>\n<li><strong>\u6ce8\u5165\u4f9d\u8d56\uff1a<\/strong> \u4f7f\u7528\u6784\u9020\u51fd\u6570\u6216\u8bbe\u7f6e\u5668\u6765\u4f20\u9012\u6b63\u786e\u7684\u5b9e\u73b0\u3002<\/li>\n<li><strong>\u91cd\u6784\u4f7f\u7528\u65b9\u5f0f\uff1a<\/strong> \u66f4\u65b0\u5ba2\u6237\u7aef\u4ee3\u7801\uff0c\u4f7f\u7528\u63a5\u53e3\u7c7b\u578b\u800c\u975e\u5177\u4f53\u7c7b\u578b\u3002<\/li>\n<li><strong> \u9a8c\u8bc1\uff1a<\/strong> \u8fd0\u884c\u6d4b\u8bd5\u4ee5\u786e\u4fdd\u4e0d\u540c\u5b9e\u73b0\u4e4b\u95f4\u7684\u884c\u4e3a\u4fdd\u6301\u4e00\u81f4\u3002<\/li>\n<\/ol>\n<h2>\ud83e\uddea \u5bf9\u6d4b\u8bd5\u7684\u5f71\u54cd<\/h2>\n<p>\u591a\u6001\u6027\u663e\u8457\u6539\u53d8\u4e86\u8f6f\u4ef6\u7684\u6d4b\u8bd5\u65b9\u5f0f\u3002\u5b83\u80fd\u591f\u5b9e\u73b0\u7ec4\u4ef6\u7684\u9694\u79bb\u3002<\/p>\n<ul>\n<li><strong>\u6a21\u62df\uff1a<\/strong> \u521b\u5efa\u63a5\u53e3\u7684\u865a\u5047\u5b9e\u73b0\uff0c\u4ee5\u5728\u6ca1\u6709\u5916\u90e8\u4f9d\u8d56\u7684\u60c5\u51b5\u4e0b\u6d4b\u8bd5\u903b\u8f91\u3002<\/li>\n<li><strong>\u96c6\u6210\u6d4b\u8bd5\uff1a<\/strong> \u9a8c\u8bc1\u4e0d\u540c\u7684\u5b9e\u73b0\u662f\u5426\u80fd\u4e0e\u540c\u4e00\u6d88\u8d39\u8005\u6b63\u786e\u534f\u4f5c\u3002<\/li>\n<li><strong>\u56de\u5f52\u6d4b\u8bd5\uff1a<\/strong> \u65b0\u7684\u5b9e\u73b0\u53ef\u4ee5\u72ec\u7acb\u4e8e\u65e7\u7684\u5b9e\u73b0\u8fdb\u884c\u6d4b\u8bd5\u3002<\/li>\n<\/ul>\n<p>\u6ca1\u6709\u591a\u6001\u6027\u65f6\uff0c\u6d4b\u8bd5\u901a\u5e38\u9700\u8981\u642d\u5efa\u590d\u6742\u7684\u73b0\u5b9e\u73af\u5883\u3002\u800c\u6709\u4e86\u591a\u6001\u6027\uff0c\u6d4b\u8bd5\u59cb\u7ec8\u4fdd\u6301\u5feb\u901f\u4e14\u53ef\u9760\u3002<\/p>\n<h2>\ud83d\udd04 \u9488\u5bf9\u591a\u6001\u6027\u7684\u91cd\u6784<\/h2>\n<p>\u5bf9\u73b0\u6709\u4ee3\u7801\u5e93\u8fdb\u884c\u91cd\u6784\u4ee5\u4f7f\u7528\u591a\u6001\u6027\u9700\u8981\u8c28\u614e\u3002\u7a81\u7136\u7684\u66f4\u6539\u53ef\u80fd\u4f1a\u7834\u574f\u529f\u80fd\u3002<\/p>\n<ul>\n<li><strong>\u63d0\u53d6\u65b9\u6cd5\uff1a<\/strong> \u5c06\u516c\u5171\u903b\u8f91\u79fb\u5165\u57fa\u7c7b\u6216\u5171\u4eab\u63a5\u53e3\u3002<\/li>\n<li><strong>\u66ff\u6362\u7c7b\u578b\u4ee3\u7801\uff1a<\/strong> \u79fb\u9664\u68c0\u67e5\u7c7b\u578b\u7684\u6761\u4ef6\u903b\u8f91\uff0c\u5e76\u7528\u591a\u6001\u5206\u53d1\u6765\u66ff\u4ee3\u3002<\/li>\n<li><strong>\u5f15\u5165\u53c2\u6570\u5bf9\u8c61\uff1a<\/strong> \u5c06\u76f8\u5173\u53c2\u6570\u7ec4\u5408\u6210\u4e00\u4e2a\u5bf9\u8c61\uff0c\u4ee5\u964d\u4f4e\u65b9\u6cd5\u7b7e\u540d\u7684\u590d\u6742\u5ea6\u3002<\/li>\n<li><strong>\u6301\u7eed\u9a8c\u8bc1\uff1a<\/strong> \u7ef4\u62a4\u4e00\u4e2a\u5728\u6bcf\u6b21\u91cd\u6784\u6b65\u9aa4\u540e\u8fd0\u884c\u7684\u6d4b\u8bd5\u5957\u4ef6\u3002<\/li>\n<\/ul>\n<h2>\ud83c\udf10 \u73b0\u5b9e\u573a\u666f<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u6982\u5ff5\u6027\u793a\u4f8b\uff0c\u8bf4\u660e\u591a\u6001\u6027\u5982\u4f55\u5e94\u7528\u4e8e\u901a\u7528\u8f6f\u4ef6\u67b6\u6784\u3002<\/p>\n<h3>\ud83d\udce6 \u6570\u636e\u5904\u7406\u6d41\u6c34\u7ebf<\/h3>\n<p>\u60f3\u8c61\u4e00\u4e2a\u4ece\u5404\u79cd\u6765\u6e90\u5904\u7406\u6570\u636e\u7684\u7cfb\u7edf\u3002\u6bcf\u4e2a\u6765\u6e90\u90fd\u9700\u8981\u4e0d\u540c\u7684\u89e3\u6790\u903b\u8f91\u3002<\/p>\n<ul>\n<li><strong>\u63a5\u53e3\uff1a<\/strong> <code>DataSource<\/code> \u5177\u6709\u4e00\u4e2a\u65b9\u6cd5 <code>fetchData()<\/code>.<\/li>\n<li><strong>\u5b9e\u73b0\uff1a<\/strong> <code>\u6587\u4ef6\u6e90<\/code>, <code>\u7f51\u7edc\u6e90<\/code>, <code>\u6570\u636e\u5e93\u6e90<\/code>.<\/li>\n<li><strong>\u4f18\u52bf\uff1a<\/strong> \u7ba1\u9053\u4ee3\u7801\u8c03\u7528 <code>fetchData()<\/code> \u800c\u65e0\u9700\u77e5\u9053\u6e90\u7c7b\u578b\u3002<\/li>\n<\/ul>\n<h3>\ud83c\udfa8 \u6e32\u67d3\u5f15\u64ce<\/h3>\n<p>\u56fe\u5f62\u7cfb\u7edf\u9700\u8981\u5728\u4e0d\u540c\u663e\u793a\u5668\u4e0a\u7ed8\u5236\u5f62\u72b6\u3002<\/p>\n<ul>\n<li><strong>\u63a5\u53e3\uff1a<\/strong> <code>\u6e32\u67d3\u5668<\/code> \u5177\u6709\u4e00\u4e2a\u65b9\u6cd5 <code>draw(shape)<\/code>.<\/li>\n<li><strong>\u5b9e\u73b0\uff1a<\/strong> <code>\u77e2\u91cf\u6e32\u67d3\u5668<\/code>, <code>\u5149\u6805\u6e32\u67d3\u5668<\/code>.<\/li>\n<li><strong>\u4f18\u52bf\uff1a<\/strong> \u5728\u4e0d\u66f4\u6539\u5e94\u7528\u7a0b\u5e8f\u903b\u8f91\u7684\u60c5\u51b5\u4e0b\u5207\u6362\u6e32\u67d3\u7b56\u7565\u3002<\/li>\n<\/ul>\n<h3>\ud83d\udcb3 \u652f\u4ed8\u7cfb\u7edf<\/h3>\n<p>\u7ed3\u8d26\u6d41\u7a0b\u9700\u8981\u5904\u7406\u5404\u79cd\u652f\u4ed8\u65b9\u5f0f\u3002<\/p>\n<ul>\n<li><strong>\u63a5\u53e3\uff1a<\/strong> <code>\u652f\u4ed8\u5904\u7406\u5668<\/code> \u5e26\u6709\u4e00\u4e2a\u65b9\u6cd5 <code>charge(amount)<\/code>.<\/li>\n<li><strong>\u5b9e\u73b0\uff1a<\/strong> <code>\u4fe1\u7528\u5361\u5904\u7406\u5668<\/code>, <code>PayPal\u5904\u7406\u5668<\/code>.<\/li>\n<li><strong>\u4f18\u52bf\uff1a<\/strong> \u5728\u4e0d\u4fee\u6539\u7ed3\u8d26\u6d41\u7a0b\u7684\u60c5\u51b5\u4e0b\u6dfb\u52a0\u65b0\u7684\u652f\u4ed8\u65b9\u5f0f\u3002<\/li>\n<\/ul>\n<h2>\ud83d\udcdd \u51b3\u7b56\u77e9\u9635<\/h2>\n<p>\u5728\u51b3\u5b9a\u662f\u5426\u5b9e\u73b0\u591a\u6001\u6027\u65f6\u4f7f\u7528\u6b64\u68c0\u67e5\u6e05\u5355\u3002<\/p>\n<ul>\n<li><strong>\u540c\u4e00\u64cd\u4f5c\u662f\u5426\u5b58\u5728\u591a\u79cd\u884c\u4e3a\uff1f<\/strong> \u662f \u279d \u4f7f\u7528\u591a\u6001\u6027\u3002<\/li>\n<li><strong>\u884c\u4e3a\u662f\u5426\u4f1a\u9891\u7e41\u53d8\u5316\uff1f<\/strong> \u662f \u279d \u4f7f\u7528\u63a5\u53e3\u6216\u62bd\u8c61\u7c7b\u3002<\/li>\n<li><strong>\u8be5\u884c\u4e3a\u662f\u5426\u88ab\u6240\u6709\u7c7b\u5171\u4eab\uff1f<\/strong> \u662f \u279d \u4f7f\u7528\u62bd\u8c61\u7c7b\u3002<\/li>\n<li><strong>\u8be5\u884c\u4e3a\u662f\u5426\u53ef\u9009\uff1f<\/strong> \u662f \u279d \u4f7f\u7528\u63a5\u53e3\u3002<\/li>\n<li><strong>\u7cfb\u7edf\u662f\u5426\u7b80\u5355\u4e14\u9759\u6001\uff1f<\/strong> \u662f \u279d \u907f\u514d\u4f7f\u7528\u591a\u6001\u6027\u3002<\/li>\n<\/ul>\n<h2>\ud83d\udee1\ufe0f \u5b89\u5168\u8003\u8651<\/h2>\n<p>\u591a\u6001\u6027\u5f15\u5165\u4e86\u95f4\u63a5\u5c42\uff0c\u53ef\u80fd\u5f71\u54cd\u5b89\u5168\u6027\u3002<\/p>\n<ul>\n<li><strong>\u9a8c\u8bc1\uff1a<\/strong> \u786e\u4fdd\u63a5\u53e3\u7684\u6240\u6709\u5b9e\u73b0\u90fd\u80fd\u5b89\u5168\u5730\u5904\u7406\u8f93\u5165\u3002<\/li>\n<li><strong>\u8bbf\u95ee\u63a7\u5236\uff1a<\/strong> \u5728\u7ee7\u627f\u5c42\u6b21\u7ed3\u6784\u4e2d\u8981\u5c0f\u5fc3\u4f7f\u7528\u53d7\u4fdd\u62a4\u7684\u6210\u5458\u3002<\/li>\n<li><strong>\u6ce8\u5165\uff1a<\/strong> \u591a\u6001\u4f9d\u8d56\u5e94\u5b89\u5168\u914d\u7f6e\uff0c\u4ee5\u9632\u6b62\u6076\u610f\u5b9e\u73b0\u3002<\/li>\n<\/ul>\n<h2>\ud83c\udfc1 \u6458\u8981<\/h2>\n<p>\u591a\u6001\u6027\u662f\u521b\u5efa\u7075\u6d3b\u3001\u53ef\u7ef4\u62a4\u8f6f\u4ef6\u7cfb\u7edf\u7684\u91cd\u8981\u5de5\u5177\u3002\u5b83\u4f7f\u5f00\u53d1\u4eba\u5458\u80fd\u591f\u7f16\u5199\u80fd\u591f\u9002\u5e94\u53d8\u5316\u800c\u65e0\u9700\u91cd\u5199\u6838\u5fc3\u903b\u8f91\u7684\u4ee3\u7801\u3002\u901a\u8fc7\u9075\u5faaSOLID\u539f\u5219\u5e76\u907f\u514d\u5e38\u89c1\u9677\u9631\uff0c\u56e2\u961f\u53ef\u4ee5\u6784\u5efa\u7ecf\u5f97\u8d77\u65f6\u95f4\u8003\u9a8c\u7684\u67b6\u6784\u3002\u5173\u952e\u5728\u4e8e\u5e73\u8861\uff1a\u5728\u80fd\u5e26\u6765\u4ef7\u503c\u7684\u5730\u65b9\u4f7f\u7528\u62bd\u8c61\uff0c\u4f46\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u590d\u6742\u6027\u3002\u901a\u8fc7\u7cbe\u5fc3\u89c4\u5212\u548c\u4e25\u8c28\u7684\u5b9e\u73b0\uff0c\u591a\u6001\u6027\u80fd\u591f\u5e26\u6765\u66f4\u7b80\u6d01\u3001\u66f4\u5065\u58ee\u7684\u4ee3\u7801\u3002<\/p>\n<p>\u4e13\u6ce8\u4e8e\u6e05\u6670\u7684\u63a5\u53e3\u548c\u660e\u786e\u7684\u5951\u7ea6\u3002\u4f18\u5148\u8003\u8651\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u6d4b\u8bd5\u6027\u3002\u8fd9\u4e9b\u5b9e\u8df5\u80fd\u591f\u786e\u4fdd\u968f\u7740\u4ee3\u7801\u7684\u589e\u957f\uff0c\u5176\u4f9d\u7136\u4fdd\u6301\u53ef\u7ba1\u7406\u6027\u3002\u62e5\u62b1\u591a\u6001\u6027\u7684\u529b\u91cf\uff0c\u6784\u5efa\u5177\u6709\u97e7\u6027\u4e14\u6613\u4e8e\u6f14\u8fdb\u7684\u7cfb\u7edf\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u591a\u6001\u6027\u662f\u7a33\u5065\u9762\u5411\u5bf9\u8c61\u8bbe\u8ba1\u7684\u57fa\u77f3\u3002\u5b83\u5141\u8bb8\u7cfb\u7edf\u901a\u8fc7\u4e00\u4e2a\u901a\u7528\u63a5\u53e3\u5904&hellip;<\/p>\n","protected":false},"author":1,"featured_media":3656,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"\u591a\u6001\u6027\u6307\u5357\uff1a\u7f16\u5199\u6574\u6d01\u4ee3\u7801 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