{"rsdb":{"rid":"239253","subhead":"","postdate":"0","aid":"164910","fid":"85","uid":"1","topic":"1","content":"<div id=\"cnblogs_post_body\">\n <h3 class=\"blogstory\">\u8981\u628a\u8f6f\u4ef6\u505a\u5f97\u975e\u5e38\u7075\u6d3b\u53c8\u8981\u4fbf\u4e8e\u7ef4\u62a4\u662f\u4e00\u4e2a\u5f88\u56f0\u96be\u7684\u4e8b\u60c5\u3002\u7075\u6d3b\u7684\u8f6f\u4ef6\u4ed6\u7684\u7ed3\u6784\u5c31\u590d\u6742\uff0c\u7ef4\u62a4\u8d77\u6765\u5c31\u56f0\u96be\u3002\u6709\u5f97\u5fc5\u6709\u5931\uff0c\u5173\u952e\u5c31\u5728\u4e8e\u5982\u4f55\u5904\u7406\u8fd9\u4e24\u8005\uff0c\u4f7f\u5f97\u5927\u4e8e\u5931\u3002\u8f6f\u4ef6\u7684\u8bbe\u8ba1\u5f00\u53d1\u5e94\u9075\u5faa\u4ee5\u4e0b\u516d\u5927\u539f\u5219\uff1a&nbsp;<br data-filtered=\"filtered\" \/><span style=\"color: #993300\">1. OCP&nbsp;<br data-filtered=\"filtered\" \/>\u5168\u79f0\uff1a\u201cOpen-Closed Principle\u201d \u5f00\u653e\uff0d\u5c01\u95ed\u539f\u5219&nbsp;<\/span><br data-filtered=\"filtered\" \/>\u8bf4\u660e\uff1a\u5bf9\u6269\u5c55\u5f00\u653e\uff0c\u5bf9\u4fee\u6539\u5173\u95ed\u3002&nbsp;<br data-filtered=\"filtered\" \/>\u4f18\u70b9\uff1a\u6309\u7167OCP\u539f\u5219\u8bbe\u8ba1\u51fa\u6765\u7684\u7cfb\u7edf\uff0c\u964d\u4f4e\u4e86\u7a0b\u5e8f\u5404\u90e8\u5206\u4e4b\u95f4\u7684\u8026\u5408\u6027\uff0c\u5176\u9002\u5e94\u6027\u3001\u7075\u6d3b\u6027\u3001\u7a33\u5b9a\u6027\u90fd\u6bd4\u8f83\u597d\u3002\u5f53\u5df2\u6709\u8f6f\u4ef6\u7cfb\u7edf\u9700\u8981\u589e\u52a0\u65b0\u7684\u529f\u80fd\u65f6\uff0c\u4e0d\u9700\u8981\u5bf9\u4f5c\u4e3a\u7cfb\u7edf\u57fa\u7840\u7684\u62bd\u8c61\u5c42\u8fdb\u884c\u4fee\u6539\uff0c\u53ea\u9700\u8981\u5728\u539f\u6709\u57fa\u7840\u4e0a\u9644\u52a0\u65b0\u7684\u6a21\u5757\u5c31\u80fd\u5b9e\u73b0\u6240\u9700\u8981\u6dfb\u52a0\u7684\u529f\u80fd\u3002\u589e\u52a0\u7684\u65b0\u6a21\u5757\u5bf9\u539f\u6709\u7684\u6a21\u5757\u5b8c\u5168\u6ca1\u6709\u5f71\u54cd\u6216\u5f71\u54cd\u5f88\u5c0f\uff0c\u8fd9\u6837\u5c31\u65e0\u987b\u4e3a\u539f\u6709\u6a21\u5757\u8fdb\u884c\u91cd\u65b0\u6d4b\u8bd5\u3002&nbsp;<br data-filtered=\"filtered\" \/>\u5982\u4f55\u5b9e\u73b0\u201c\u5f00-\u95ed\u201d\u539f\u5219&nbsp;<br data-filtered=\"filtered\" \/>\u5728\u9762\u5411\u5bf9\u8c61\u8bbe\u8ba1\u4e2d\uff0c\u4e0d\u5141\u8bb8\u66f4\u6539\u7684\u662f\u7cfb\u7edf\u7684\u62bd\u8c61\u5c42\uff0c\u800c\u5141\u8bb8\u6269\u5c55\u7684\u662f\u7cfb\u7edf\u7684\u5b9e\u73b0\u5c42\u3002\u6362\u8a00\u4e4b\uff0c\u5b9a\u4e49\u4e00\u4e2a\u4e00\u52b3\u6c38\u9038\u7684\u62bd\u8c61\u8bbe\u8ba1\u5c42\uff0c\u5141\u8bb8\u5c3d\u53ef\u80fd\u591a\u7684\u884c\u4e3a\u5728\u5b9e\u73b0\u5c42\u88ab\u5b9e\u73b0\u3002&nbsp;<br data-filtered=\"filtered\" \/>\u89e3\u51b3\u95ee\u9898\u5173\u952e\u5728\u4e8e\u62bd\u8c61\u5316\uff0c\u62bd\u8c61\u5316\u662f\u9762\u5411\u5bf9\u8c61\u8bbe\u8ba1\u7684\u7b2c\u4e00\u4e2a\u6838\u5fc3\u672c\u8d28\u3002&nbsp;<br data-filtered=\"filtered\" \/>\u5bf9\u4e00\u4e2a\u4e8b\u7269\u62bd\u8c61\u5316\uff0c\u5b9e\u8d28\u4e0a\u662f\u5728\u6982\u62ec\u5f52\u7eb3\u603b\u7ed3\u5b83\u7684\u672c\u8d28\u3002\u62bd\u8c61\u8ba9\u6211\u4eec\u6293\u4f4f\u6700\u6700\u91cd\u8981\u7684\u4e1c\u897f\uff0c\u4ece\u66f4\u9ad8\u4e00\u5c42\u53bb\u601d\u8003\u3002\u8fd9\u964d\u4f4e\u4e86\u601d\u8003\u7684\u590d\u6742\u5ea6\uff0c\u6211\u4eec\u4e0d\u7528\u540c\u65f6\u8003\u8651\u90a3\u4e48\u591a\u7684\u4e1c\u897f\u3002\u6362\u8a00\u4e4b\uff0c\u6211\u4eec\u5c01\u88c5\u4e86\u4e8b\u7269\u7684\u672c\u8d28\uff0c\u770b\u4e0d\u5230\u4efb\u4f55\u7ec6\u8282\u3002&nbsp;<br data-filtered=\"filtered\" \/>\u5728\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u4e2d\uff0c\u901a\u8fc7\u62bd\u8c61\u7c7b\u53ca\u63a5\u53e3\uff0c\u89c4\u5b9a\u4e86\u5177\u4f53\u7c7b\u7684\u7279\u5f81\u4f5c\u4e3a\u62bd\u8c61\u5c42\uff0c\u76f8\u5bf9\u7a33\u5b9a\uff0c\u4e0d\u9700\u66f4\u6539\uff0c\u4ece\u800c\u6ee1\u8db3\u201c\u5bf9\u4fee\u6539\u5173\u95ed\u201d\uff1b\u800c\u4ece\u62bd\u8c61\u7c7b\u5bfc\u51fa\u7684\u5177\u4f53\u7c7b\u53ef\u4ee5\u6539\u53d8\u7cfb\u7edf\u7684\u884c\u4e3a\uff0c\u4ece\u800c\u6ee1\u8db3\u201c\u5bf9\u6269\u5c55\u5f00\u653e\u201d\u3002&nbsp;<br data-filtered=\"filtered\" \/>\u5bf9\u5b9e\u4f53\u8fdb\u884c\u6269\u5c55\u65f6\uff0c\u4e0d\u5fc5\u6539\u52a8\u8f6f\u4ef6\u7684\u6e90\u4ee3\u7801\u6216\u8005\u4e8c\u8fdb\u5236\u4ee3\u7801\u3002\u5173\u952e\u5728\u4e8e\u62bd\u8c61\u3002&nbsp;<br data-filtered=\"filtered\" \/><br data-filtered=\"filtered\" \/><span style=\"color: #008000\"><strong>2. LSP&nbsp;<\/strong><br data-filtered=\"filtered\" \/><strong>\u5168\u79f0\uff1a\u201cLiskov Substitution Principle\u201d \u91cc\u6c0f\u4ee3\u6362\u539f\u5219&nbsp;<\/strong><\/span><br data-filtered=\"filtered\" \/>\u8bf4\u660e\uff1a\u5b50\u7c7b\u578b\u5fc5\u987b\u80fd\u591f\u66ff\u6362\u5b83\u4eec\u7684\u57fa\u7c7b\u578b\u3002\u4e00\u4e2a\u8f6f\u4ef6\u5b9e\u4f53\u5982\u679c\u4f7f\u7528\u7684\u662f\u4e00\u4e2a\u57fa\u7c7b\uff0c\u90a3\u4e48\u5f53\u628a\u8fd9\u4e2a\u57fa\u7c7b\u66ff\u6362\u6210\u7ee7\u627f\u8be5\u57fa\u7c7b\u7684\u5b50\u7c7b\uff0c\u7a0b\u5e8f\u7684\u884c\u4e3a\u4e0d\u4f1a\u53d1\u751f\u4efb\u4f55\u53d8\u5316\u3002\u8f6f\u4ef6\u5b9e\u4f53\u5bdf\u89c9\u4e0d\u51fa\u57fa\u7c7b\u5bf9\u8c61\u548c\u5b50\u7c7b\u5bf9\u8c61\u7684\u533a\u522b\u3002&nbsp;<br data-filtered=\"filtered\" \/>\u4f18\u70b9\uff1a\u53ef\u4ee5\u5f88\u5bb9\u6613\u7684\u5b9e\u73b0\u540c\u4e00\u7236\u7c7b\u4e0b\u5404\u4e2a\u5b50\u7c7b\u7684\u4e92\u6362\uff0c\u800c\u5ba2\u6237\u7aef\u53ef\u4ee5\u6beb\u4e0d\u5bdf\u89c9\u3002&nbsp;<br data-filtered=\"filtered\" \/><br data-filtered=\"filtered\" \/><span style=\"color: #800080\">3. DIP&nbsp;<br data-filtered=\"filtered\" \/>\u5168\u79f0\uff1a\u201cDependence Inversion Principle\u201d\u4f9d\u8d56\u5012\u7f6e\u539f\u5219&nbsp;<\/span><br data-filtered=\"filtered\" \/>\u8bf4\u660e\uff1a\u8981\u4f9d\u8d56\u4e8e\u62bd\u8c61\uff0c\u4e0d\u8981\u4f9d\u8d56\u4e8e\u5177\u4f53\u3002\u5ba2\u6237\u7aef\u4f9d\u8d56\u4e8e\u62bd\u8c61\u8026\u5408\u3002&nbsp;<br data-filtered=\"filtered\" \/>\u62bd\u8c61\u4e0d\u5e94\u5f53\u4f9d\u8d56\u4e8e\u7ec6\u8282\uff1b\u7ec6\u8282\u5e94\u5f53\u4f9d\u8d56\u4e8e\u62bd\u8c61\uff1b&nbsp;<br data-filtered=\"filtered\" \/>\u8981\u9488\u5bf9\u63a5\u53e3\u7f16\u7a0b\uff0c\u4e0d\u9488\u5bf9\u5b9e\u73b0\u7f16\u7a0b\u3002&nbsp;<br data-filtered=\"filtered\" \/>\u4f18\u70b9\uff1a\u4f7f\u7528\u4f20\u7edf\u8fc7\u7a0b\u5316\u7a0b\u5e8f\u8bbe\u8ba1\u6240\u521b\u5efa\u7684\u4f9d\u8d56\u5173\u7cfb\uff0c\u7b56\u7565\u4f9d\u8d56\u4e8e\u7ec6\u8282\uff0c\u8fd9\u662f\u7cdf\u7cd5\u7684\uff0c\u56e0\u4e3a\u7b56\u7565\u53d7\u5230\u7ec6\u8282\u6539\u53d8\u7684\u5f71\u54cd\u3002\u4f9d\u8d56\u5012\u7f6e\u539f\u5219\u4f7f\u7ec6\u8282\u548c\u7b56\u7565\u90fd\u4f9d\u8d56\u4e8e\u62bd\u8c61\uff0c\u62bd\u8c61\u7684\u7a33\u5b9a\u6027\u51b3\u5b9a\u4e86\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u3002&nbsp;<br data-filtered=\"filtered\" \/>\u600e\u6837\u505a\u5230\u4f9d\u8d56\u5012\u7f6e\uff1f&nbsp;<br data-filtered=\"filtered\" \/>\u4ee5\u62bd\u8c61\u65b9\u5f0f\u8026\u5408\u662f\u4f9d\u8d56\u5012\u8f6c\u539f\u5219\u7684\u5173\u952e\u3002\u62bd\u8c61\u8026\u5408\u5173\u7cfb\u603b\u8981\u6d89\u53ca\u5177\u4f53\u7c7b\u4ece\u62bd\u8c61\u7c7b\u7ee7\u627f\uff0c\u5e76\u4e14\u9700\u8981\u4fdd\u8bc1\u5728\u4efb\u4f55\u5f15\u7528\u5230\u57fa\u7c7b\u7684\u5730\u65b9\u90fd\u53ef\u4ee5\u6539\u6362\u6210\u5176\u5b50\u7c7b\uff0c\u56e0\u6b64\uff0c\u91cc\u6c0f\u4ee3\u6362\u539f\u5219\u662f\u4f9d\u8d56\u5012\u8f6c\u539f\u5219\u7684\u57fa\u7840\u3002&nbsp;<br data-filtered=\"filtered\" \/>\u5728\u62bd\u8c61\u5c42\u6b21\u4e0a\u7684\u8026\u5408\u867d\u7136\u6709\u7075\u6d3b\u6027\uff0c\u4f46\u4e5f\u5e26\u6765\u4e86\u989d\u5916\u7684\u590d\u6742\u6027\uff0c\u5982\u679c\u4e00\u4e2a\u5177\u4f53\u7c7b\u53d1\u751f\u53d8\u5316\u7684\u53ef\u80fd\u6027\u975e\u5e38\u5c0f\uff0c\u90a3\u4e48\u62bd\u8c61\u8026\u5408\u80fd\u53d1\u6325\u7684\u597d\u5904\u4fbf\u5341\u5206\u6709\u9650\uff0c\u8fd9\u65f6\u53ef\u4ee5\u7528\u5177\u4f53\u8026\u5408\u53cd\u800c\u4f1a\u66f4\u597d\u3002&nbsp;<br data-filtered=\"filtered\" \/>\u5c42\u6b21\u5316\uff1a\u6240\u6709\u7ed3\u6784\u826f\u597d\u7684\u9762\u5411\u5bf9\u8c61\u6784\u67b6\u90fd\u5177\u6709\u6e05\u6670\u7684\u5c42\u6b21\u5b9a\u4e49\uff0c\u6bcf\u4e2a\u5c42\u6b21\u901a\u8fc7\u4e00\u4e2a\u5b9a\u4e49\u826f\u597d\u7684\u3001\u53d7\u63a7\u7684\u63a5\u53e3\u5411\u5916\u63d0\u4f9b\u4e00\u7ec4\u5185\u805a\u7684\u670d\u52a1\u3002&nbsp;<br data-filtered=\"filtered\" \/>\u4f9d\u8d56\u4e8e\u62bd\u8c61\uff1a\u5efa\u8bae\u4e0d\u4f9d\u8d56\u4e8e\u5177\u4f53\u7c7b\uff0c\u5373\u7a0b\u5e8f\u4e2d\u6240\u6709\u7684\u4f9d\u8d56\u5173\u7cfb\u90fd\u5e94\u8be5\u7ec8\u6b62\u4e8e\u62bd\u8c61\u7c7b\u6216\u8005\u63a5\u53e3\u3002\u5c3d\u91cf\u505a\u5230\uff1a&nbsp;<br data-filtered=\"filtered\" \/>1\u3001\u4efb\u4f55\u53d8\u91cf\u90fd\u4e0d\u5e94\u8be5\u6301\u6709\u4e00\u4e2a\u6307\u5411\u5177\u4f53\u7c7b\u7684\u6307\u9488\u6216\u8005\u5f15\u7528\u3002&nbsp;<br data-filtered=\"filtered\" \/>2\u3001\u4efb\u4f55\u7c7b\u90fd\u4e0d\u5e94\u8be5\u4ece\u5177\u4f53\u7c7b\u6d3e\u751f\u3002&nbsp;<br data-filtered=\"filtered\" \/>3\u3001\u4efb\u4f55\u65b9\u6cd5\u90fd\u4e0d\u5e94\u8be5\u8986\u5199\u5b83\u7684\u4efb\u4f55\u57fa\u7c7b\u4e2d\u7684\u5df2\u7ecf\u5b9e\u73b0\u7684\u65b9\u6cd5\u3002&nbsp;<br data-filtered=\"filtered\" \/><br data-filtered=\"filtered\" \/><span style=\"color: #339966\">4. ISP&nbsp;<br data-filtered=\"filtered\" \/>\u5168\u79f0\uff1a\u201cInterface Segregation Principle\u201d \u63a5\u53e3\u9694\u79bb\u539f\u5219&nbsp;<\/span><br data-filtered=\"filtered\" \/>\u8bf4\u660e\uff1a\u4f7f\u7528\u591a\u4e2a\u4e13\u4e00\u529f\u80fd\u7684\u63a5\u53e3\u6bd4\u4f7f\u7528\u4e00\u4e2a\u7684\u603b\u63a5\u53e3\u603b\u8981\u597d\u3002\u4ece\u4e00\u4e2a\u5ba2\u6237\u7c7b\u7684\u89d2\u5ea6\u6765\u8bb2\uff1a\u4e00\u4e2a\u7c7b\u5bf9\u53e6\u5916\u4e00\u4e2a\u7c7b\u7684\u4f9d\u8d56\u6027\u5e94\u5f53\u662f\u5efa\u7acb\u5728\u6700\u5c0f\u63a5\u53e3\u4e0a\u7684\u3002\u8fc7\u4e8e\u81c3\u80bf\u7684\u63a5\u53e3\u662f\u5bf9\u63a5\u53e3\u7684\u6c61\u67d3\uff0c\u4e0d\u5e94\u8be5\u5f3a\u8feb\u5ba2\u6237\u4f9d\u8d56\u4e8e\u5b83\u4eec\u4e0d\u7528\u7684\u65b9\u6cd5\u3002&nbsp;<br data-filtered=\"filtered\" \/>\u4f18\u70b9\uff1a\u4f1a\u4f7f\u4e00\u4e2a\u8f6f\u4ef6\u7cfb\u7edf\u529f\u80fd\u6269\u5c55\u65f6\uff0c\u4fee\u6539\u7684\u538b\u529b\u4e0d\u4f1a\u4f20\u5230\u522b\u7684\u5bf9\u8c61\u90a3\u91cc\u3002&nbsp;<br data-filtered=\"filtered\" \/>\u5982\u4f55\u5b9e\u73b0\u63a5\u53e3\u9694\u79bb\u539f\u5219&nbsp;<br data-filtered=\"filtered\" \/>\u4e0d\u5e94\u8be5\u5f3a\u8feb\u7528\u6237\u4f9d\u8d56\u4e8e\u4ed6\u4eec\u4e0d\u7528\u7684\u65b9\u6cd5\u3002&nbsp;<br data-filtered=\"filtered\" \/>1\u3001\u5229\u7528\u59d4\u6258\u5206\u79bb\u63a5\u53e3\u3002&nbsp;<br data-filtered=\"filtered\" \/>2\u3001\u5229\u7528\u591a\u7ee7\u627f\u5206\u79bb\u63a5\u53e3\u3002&nbsp;<br data-filtered=\"filtered\" \/><span style=\"color: #3366ff\"><br data-filtered=\"filtered\" \/><\/span><span style=\"color: #333399\"><strong>5. CARP or CRP&nbsp;<br data-filtered=\"filtered\" \/>\u5168\u79f0\uff1a\u201cComposit<\/strong><strong>e\/Aggregate Reuse Principle\u201d \u5408\u6210\/\u805a\u5408\u590d\u7528\u539f\u5219 or \u201cComposite Reuse Principle\u201d<\/strong><\/span><strong>&nbsp;\u5408\u6210\u590d\u7528\u539f\u5219<\/strong>&nbsp;<br data-filtered=\"filtered\" \/>\u8bf4\u660e\uff1a\u5982\u679c\u65b0\u5bf9\u8c61\u7684\u67d0\u4e9b\u529f\u80fd\u5728\u522b\u7684\u5df2\u7ecf\u521b\u5efa\u597d\u7684\u5bf9\u8c61\u91cc\u9762\u5df2\u7ecf\u5b9e\u73b0\uff0c\u90a3\u4e48\u5c3d\u91cf\u4f7f\u7528\u522b\u7684\u5bf9\u8c61\u63d0\u4f9b\u7684\u529f\u80fd\uff0c\u4f7f\u4e4b\u6210\u4e3a\u65b0\u5bf9\u8c61\u7684\u4e00\u90e8\u5206\uff0c\u800c\u4e0d\u8981\u81ea\u5df1\u518d\u91cd\u65b0\u521b\u5efa\u3002\u65b0\u5bf9\u8c61\u901a\u8fc7\u5411\u8fd9\u4e9b\u5bf9\u8c61\u7684\u59d4\u6d3e\u8fbe\u5230\u590d\u7528\u5df2\u6709\u529f\u80fd\u7684\u3002&nbsp;<br data-filtered=\"filtered\" \/>\u7b80\u800c\u8a00\u4e4b\uff0c\u8981\u5c3d\u91cf\u4f7f\u7528\u5408\u6210\/\u805a\u5408\uff0c\u5c3d\u91cf\u4e0d\u8981\u4f7f\u7528\u7ee7\u627f\u3002&nbsp;<br data-filtered=\"filtered\" \/>\u4f18\u70b9\uff1a&nbsp;<br data-filtered=\"filtered\" \/>1) \u65b0\u5bf9\u8c61\u5b58\u53d6\u6210\u5206\u5bf9\u8c61\u7684\u552f\u4e00\u65b9\u6cd5\u662f\u901a\u8fc7\u6210\u5206\u5bf9\u8c61\u7684\u63a5\u53e3\u3002&nbsp;<br data-filtered=\"filtered\" \/>2) \u8fd9\u79cd\u590d\u7528\u662f\u9ed1\u7bb1\u590d\u7528\uff0c\u56e0\u4e3a\u6210\u5206\u5bf9\u8c61\u7684\u5185\u90e8\u7ec6\u8282\u662f\u65b0\u5bf9\u8c61\u6240\u770b\u4e0d\u89c1\u7684\u3002&nbsp;<br data-filtered=\"filtered\" \/>3) \u8fd9\u79cd\u590d\u7528\u652f\u6301\u5305\u88c5\u3002&nbsp;<br data-filtered=\"filtered\" \/>4) \u8fd9\u79cd\u590d\u7528\u6240\u9700\u7684\u4f9d\u8d56\u8f83\u5c11\u3002&nbsp;<br data-filtered=\"filtered\" \/>5) \u6bcf\u4e00\u4e2a\u65b0\u7684\u7c7b\u53ef\u4ee5\u5c06\u7126\u70b9\u96c6\u4e2d\u5728\u4e00\u4e2a\u4efb\u52a1\u4e0a\u3002&nbsp;<br data-filtered=\"filtered\" \/>6) \u8fd9\u79cd\u590d\u7528\u53ef\u4ee5\u5728\u8fd0\u884c\u65f6\u95f4\u5185\u52a8\u6001\u8fdb\u884c\uff0c\u65b0\u5bf9\u8c61\u53ef\u4ee5\u52a8\u6001\u7684\u5f15\u7528\u4e0e\u6210\u5206\u5bf9\u8c61\u7c7b\u578b\u76f8\u540c\u7684\u5bf9\u8c61\u3002&nbsp;<br data-filtered=\"filtered\" \/>7) \u4f5c\u4e3a\u590d\u7528\u624b\u6bb5\u53ef\u4ee5\u5e94\u7528\u5230\u51e0\u4e4e\u4efb\u4f55\u73af\u5883\u4e2d\u53bb\u3002&nbsp;<br data-filtered=\"filtered\" \/>\u7f3a\u70b9:&nbsp;<br data-filtered=\"filtered\" \/>\u5c31\u662f\u7cfb\u7edf\u4e2d\u4f1a\u6709\u8f83\u591a\u7684\u5bf9\u8c61\u9700\u8981\u7ba1\u7406\u3002&nbsp;<br data-filtered=\"filtered\" \/><br data-filtered=\"filtered\" \/><span style=\"color: #ff00ff\"><strong>6. LOD or LKP&nbsp;<br data-filtered=\"filtered\" \/>\u5168\u79f0\uff1a\u201cLaw of Demeter\u201d \u8fea\u7c73\u7279\u539f\u5219 or \u201cLeast Knowledge Principle\u201d \u6700\u5c11\u77e5\u8bc6\u539f\u5219<\/strong>&nbsp;<\/span><br data-filtered=\"filtered\" \/>\u8bf4\u660e\uff1a\u5bf9\u8c61\u4e0e\u5bf9\u8c61\u4e4b\u95f4\u5e94\u8be5\u4f7f\u7528\u5c3d\u53ef\u80fd\u5c11\u7684\u65b9\u6cd5\u6765\u5173\u8054\uff0c\u907f\u514d\u5343\u4e1d\u4e07\u7f15\u7684\u5173\u7cfb\u3002&nbsp;<br data-filtered=\"filtered\" \/>\u5982\u4f55\u5b9e\u73b0\u8fea\u7c73\u7279\u6cd5\u5219&nbsp;<br data-filtered=\"filtered\" \/>\u8fea\u7c73\u7279\u6cd5\u5219\u7684\u4e3b\u8981\u7528\u610f\u662f\u63a7\u5236\u4fe1\u606f\u7684\u8fc7\u8f7d\uff0c\u5728\u5c06\u5176\u8fd0\u7528\u5230\u7cfb\u7edf\u8bbe\u8ba1\u4e2d\u5e94\u6ce8\u610f\u4ee5\u4e0b\u51e0\u70b9\uff1a&nbsp;<br data-filtered=\"filtered\" \/>1) \u5728\u7c7b\u7684\u5212\u5206\u4e0a\uff0c\u5e94\u5f53\u521b\u5efa\u6709\u5f31\u8026\u5408\u7684\u7c7b\u3002\u7c7b\u4e4b\u95f4\u7684\u8026\u5408\u8d8a\u5f31\uff0c\u5c31\u8d8a\u6709\u5229\u4e8e\u590d\u7528\u3002&nbsp;<br data-filtered=\"filtered\" \/>2) \u5728\u7c7b\u7684\u7ed3\u6784\u8bbe\u8ba1\u4e0a\uff0c\u6bcf\u4e00\u4e2a\u7c7b\u90fd\u5e94\u5f53\u5c3d\u91cf\u964d\u4f4e\u6210\u5458\u7684\u8bbf\u95ee\u6743\u9650\u3002\u4e00\u4e2a\u7c7b\u4e0d\u5e94\u5f53public\u81ea\u5df1\u7684\u5c5e\u6027\uff0c\u800c\u5e94\u5f53\u63d0\u4f9b\u53d6\u503c\u548c\u8d4b\u503c\u7684\u65b9\u6cd5\u8ba9\u5916\u754c\u95f4\u63a5\u8bbf\u95ee\u81ea\u5df1\u7684\u5c5e\u6027\u3002&nbsp;<br data-filtered=\"filtered\" \/>3) \u5728\u7c7b\u7684\u8bbe\u8ba1\u4e0a\uff0c\u53ea\u8981\u6709\u53ef\u80fd\uff0c\u4e00\u4e2a\u7c7b\u5e94\u5f53\u8bbe\u8ba1\u6210\u4e0d\u53d8\u7c7b\u3002&nbsp;<br data-filtered=\"filtered\" \/>4) \u5728\u5bf9\u5176\u5b83\u5bf9\u8c61\u7684\u5f15\u7528\u4e0a\uff0c\u4e00\u4e2a\u7c7b\u5bf9\u5176\u5b83\u5bf9\u8c61\u7684\u5f15\u7528\u5e94\u8be5\u964d\u5230\u6700\u4f4e\u3002&nbsp;<br data-filtered=\"filtered\" \/><br data-filtered=\"filtered\" \/><strong><span style=\"color: #000080\"><br data-filtered=\"filtered\" \/>\u8fd8\u6709\u4e2a\u5355\u4e00\u804c\u8d23\u539f\u5219\uff1a&nbsp;<br data-filtered=\"filtered\" \/><br data-filtered=\"filtered\" \/>SRP\u7b80\u4ecb\uff08SRP--Single-Responsibility Principle\uff09\uff1a\u5c31\u4e00\u4e2a\u7c7b\u800c\u8a00\uff0c\u5e94\u8be5\u53ea\u4e13\u6ce8\u4e8e\u505a\u4e00\u4ef6\u4e8b\u548c\u4ec5\u6709\u4e00\u4e2a\u5f15\u8d77\u5b83\u53d8\u5316\u7684\u539f\u56e0<\/span><\/strong>\u3002\u6240\u8c13\u804c\u8d23\uff0c\u6211\u4eec\u53ef\u4ee5\u7406\u89e3\u4ed6\u4e3a\u529f\u80fd\uff0c\u5c31\u662f\u8bbe\u8ba1\u7684\u8fd9\u4e2a\u7c7b\u529f\u80fd\u5e94\u8be5\u53ea\u6709\u4e00\u4e2a\uff0c\u800c\u4e0d\u662f\u4e24\u4e2a\u6216\u66f4\u591a\u3002\u4e5f\u53ef\u4ee5\u7406\u89e3\u4e3a\u5f15\u7528\u53d8\u5316\u7684\u539f\u56e0\uff0c\u5f53\u4f60\u53d1\u73b0\u6709\u4e24\u4e2a\u53d8\u5316\u4f1a\u8981\u6c42\u6211\u4eec\u4fee\u6539\u8fd9\u4e2a\u7c7b\uff0c\u90a3\u4e48\u4f60\u5c31\u8981\u8003\u8651\u64a4\u5206\u8fd9\u4e2a\u7c7b\u4e86\u3002\u56e0\u4e3a\u804c\u8d23\u662f\u53d8\u5316\u7684\u4e00\u4e2a\u8f74\u7ebf\uff0c\u5f53\u9700\u6c42\u53d8\u5316\u65f6\uff0c\u8be5\u53d8\u5316\u4f1a\u53cd\u6620\u7c7b\u7684\u804c\u8d23\u7684\u53d8\u5316\u3002 \u4f7f\u7528SRP\u6ce8\u610f\u70b9\uff1a1\u3001\u4e00\u4e2a\u5408\u7406\u7684\u7c7b\uff0c\u5e94\u8be5\u4ec5\u6709\u4e00\u4e2a\u5f15\u8d77\u5b83\u53d8\u5316\u7684\u539f\u56e0\uff0c\u5373\u5355\u4e00\u804c\u8d23\uff1b&nbsp;<br data-filtered=\"filtered\" \/>2\u3001\u5728\u6ca1\u6709\u53d8\u5316\u5f81\u5146\u7684\u60c5\u51b5\u4e0b\u5e94\u7528SRP\u6216\u5176\u4ed6\u539f\u5219\u662f\u4e0d\u660e\u667a\u7684\uff1b&nbsp;<br data-filtered=\"filtered\" \/>3\u3001\u5728\u9700\u6c42\u5b9e\u9645\u53d1\u751f\u53d8\u5316\u65f6\u5c31\u5e94\u8be5\u5e94\u7528SRP\u7b49\u539f\u5219\u6765\u91cd\u6784\u4ee3\u7801\uff1b&nbsp;<br data-filtered=\"filtered\" \/>4\u3001\u4f7f\u7528\u6d4b\u8bd5\u9a71\u52a8\u5f00\u53d1\u4f1a\u8feb","orderid":"0","title":"\u9762\u5411\u5bf9\u8c61\u7684\u539f\u5219\uff08\u6458\u5f55\uff09(\u4e00)","smalltitle":"","mid":"0","fname":"PHP","special_id":"0","bak_id":"0","info":"0","hits":"2564","pages":"3","comments":"0","posttime":"2017-10-16 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