{"id":9967,"date":"2014-06-19T13:48:50","date_gmt":"2014-06-19T05:48:50","guid":{"rendered":"https:\/\/lifeparty.idv.tw\/blog\/?p=9967"},"modified":"2021-07-23T14:55:26","modified_gmt":"2021-07-23T06:55:26","slug":"%e6%b8%85%e6%a5%9a%e8%a1%a8%e9%81%94%e7%a8%8b%e5%bc%8f%e6%84%8f%e5%9c%96%e7%9a%84%e9%87%8d%e6%a7%8b%e6%8b%9b%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/lifeparty.idv.tw\/blog\/archives\/9967","title":{"rendered":"\u6e05\u695a\u8868\u9054\u7a0b\u5f0f\u610f\u5716\u7684\u91cd\u69cb\u62db\u5f0f"},"content":{"rendered":"<p>\u6700\u8fd1\u5728\u5de5\u4f5c\u4e0a\u91cd\u69cb\u904e\u53bb\u5225\u4eba\u958b\u767c\u7684\u7a0b\u5f0f\uff0c\u5b83\u662f\u7cfb\u7d71\u76ee\u524d\u6b63\u5728\u904b\u4f5c\u7684\u7a0b\u5f0f\uff0c\u4f46\u7531\u65bc\u7a0b\u5f0f\u9577\u9054 3000 \u591a\u884c\uff0c\u7dad\u8b77\u548c\u9664\u932f\u90fd\u8b8a\u5f97\u5f88\u56f0\u96e3\u3002\u7a0b\u5f0f\u4e2d\u56e0\u61c9\u696d\u52d9\u908f\u8f2f\u7684\u9700\u8981\uff0c\u7528\u4e86\u8a31\u591a if \u5224\u65b7\u53ca for \u8ff4\u5708\u7684\u63a7\u5236\uff0c\u4f7f\u5f97\u7a0b\u5f0f\u8b8a\u5f97\u5f88\u4e0d\u5bb9\u6613\u95b1\u8b80\u3002\u5728\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u540c\u4eba\u4f7f\u7528\u4e86\u5e7e\u500b\u62db\u5f0f\uff0c\u5229\u7528\u5b83\u5011\u53ef\u4ee5\u628a\u4e00\u5c64\u5c64\u7e41\u8907\u7684\u8ff4\u5708\u548c\u689d\u4ef6\u5224\u65b7\u5f0f\u5265\u958b\uff0c\u628a\u7a0b\u5f0f\u91cd\u69cb\u6210\u80fd\u5920\u6e05\u695a\u8868\u9054\u529f\u80fd what \u7684\u610f\u5716\uff0c\u6709\u5225\u65bc\u4e4b\u524d\u5728 how \u7684\u5c64\u6b21\u4e2d\u5bb9\u6613\u4f7f\u4eba\u8ff7\u60d1\u5728\u7e41\u8907\u7684\u5be6\u4f5c\u7d30\u7bc0\u3002\u9019\u5e7e\u500b\u62db\u5f0f\u53ef\u4ee5\u5e6b\u6211\u5011\u5c0d\u7cfb\u7d71\u8f15\u6613\u5730<a href=\"http:\/\/en.wikipedia.org\/wiki\/Divide_and_conquer_algorithm\">\u5206\u800c\u6cbb\u4e4b<\/a>\uff0c\u4ee5\u4e0b\u540c\u4eba\u5c31\u5206\u4eab\u5e7e\u500b\u7528\u4f86\u6e05\u695a\u8868\u9054\u7a0b\u5f0f\u610f\u5716\u7684\u91cd\u69cb\u62db\u5f0f\u3002<!--more--><\/p>\n<p>\u4e00\u3001\u9632\u885b\u5b50\u53e5<\/p>\n<p>\u6709\u6642\u5019\u6211\u5011\u5728\u7a0b\u5f0f\u770b\u5230\u7528 if-then-else \u5be6\u4f5c\u6aa2\u67e5\u57f7\u884c\u689d\u4ef6\u7684\u63a7\u5236\uff0c\u5176\u5be6\u591a\u534a\u662f\u66f4\u9069\u5408\u4f7f\u7528\u9632\u885b\u5b50\u53e5\u3002\u9632\u885b\u5b50\u53e5\u662f\u5728\u4e00\u958b\u59cb\u9032\u5165\u67d0\u500b\u65b9\u6cd5\u6642\uff0c\u5728\u9084\u6c92\u9032\u5165\u7a0b\u5f0f\u7684\u4e3b\u8981\u63a7\u5236\u6d41\u7a0b\u524d\uff0c\u5c31\u8b93\u4e0d\u7b26\u5408\u6d41\u7a0b\u7684\u5141\u5165\u689d\u4ef6\u7684\u72c0\u6cc1\uff0c\u76f4\u63a5\u96e2\u958b\u65b9\u6cd5\u3002\u4f46\u53d7\u5230\u7d50\u69cb\u5316\u7a0b\u5f0f\u67b6\u69cb\u7684\u5f71\u97ff\uff0c\u70ba\u4e86\u8b93\u65b9\u6cd5\u4e2d\u7684\u63a7\u5236\u6d41\u7a0b\u53ea\u80fd\u6709\u4e00\u500b\u5165\u53e3\u548c\u4e00\u500b\u51fa\u53e3\uff0c\u5f88\u591a\u4eba\u90fd\u7fd2\u6163\u7528 if-then-else \u7684\u5beb\u6cd5\u4f86\u63a7\u5236\u6d41\u7a0b\u7684\u4f8b\u5916\u63a7\u5236\u3002\u7136\u800c\u9019\u6a23\u6703\u8b93\u7a0b\u5f0f\u78bc\u5bb9\u6613\u8b8a\u5f97\u51cc\u4e82\uff1b\u7a0b\u5e8f\u591a\u7a2e\u6d41\u7a0b\u5206\u6b67\u7684\u7d50\u679c\u662f\u597d\u5e7e\u5c64\u7684 if-then-else \u6eff\u5929\u98db\uff0c\u589e\u52a0\u4e86\u95b1\u8b80\u8207\u7406\u89e3\u7a0b\u5f0f\u610f\u5716\u7684\u56f0\u96e3\u3002<\/p>\n<p>\u300aKent Beck \u7684\u5be6\u4f5c\u6a21\u5f0f\u300b\u5f88\u6e05\u695a\u5730\u89e3\u91cb\u9632\u885b\u5b50\u53e5\u548c if-then-else \u9069\u7528\u4e0d\u540c\u7684\u60c5\u5883\uff0c\u5b83\u63d0\u5230\uff1a<\/p>\n<blockquote><p>if-then-else \u8868\u9054\u7684\u662f\u300e\u53ef\u4f9b\u9078\u64c7\u7684\u591a\u500b\u7b49\u91cd\u8981\u7684\u63a7\u5236\u6d41\u300f\u3002\u9632\u885b\u5b50\u53e5\u5247\u9069\u5408\u7528\u4f86\u8868\u9054\u53e6\u4e00\u7a2e\u60c5\u5f62\uff0c\u5373\u300e\u5176\u4e2d\u4e00\u500b\u63a7\u5236\u6d41\u6bd4\u5176\u4ed6\u7684\u66f4\u91cd\u8981\u300f\u3002<\/p><\/blockquote>\n<p>\u9632\u885b\u5b50\u53e5\u7684\u597d\u8655\u5728\u65bc\u628a\u7a0b\u5f0f\u4e3b\u8981\u7684\u6d41\u7a0b\u548c\u4f8b\u5916\u7684\u60c5\u6cc1\u5206\u958b\uff0c\u9019\u6a23\u53ef\u4ee5\u66f4\u6e05\u6670\u5730\u8868\u9054\u7a0b\u5f0f\u7684\u4e3b\u9ad4\u548c\u4f8b\u5916\u72c0\u6cc1\u7684\u5340\u5225\uff0c\u800c\u4e0d\u6703\u8b93\u6240\u6709\u7684\u6d41\u7a0b\u90fd\u6df7\u6dc6\u5728\u4e00\u8d77\uff0c\u800c\u4e14\u9019\u6a23\u4e5f\u6bd4\u8f03\u5bb9\u6613\u547c\u61c9\u4f7f\u7528\u6848\u4f8b\u7684\u5408\u7d04\u5f62\u5f0f\uff08\u524d\u7f6e\u689d\u4ef6\uff09\u3002\u7576\u7136\uff0c\u4e5f\u8a31\u6709\u4eba\u89ba\u5f97\u61c9\u8a72\u7528\u4e00\u81f4\u7684\u65b9\u5f0f\u4f86\u8868\u9054\u5404\u7a2e\u7a0b\u5f0f\u8def\u5f91\uff0c\u4f86\u505a\u5230\u7a0b\u5f0f\u6d41\u7a0b\u7684\u5171\u7528\u6027\uff0c\u56e0\u6b64\u4ee5\u7d50\u69cb\u5316\u7a0b\u5f0f\u7d50\u69cb\u7684\u5beb\u6cd5\u6703\u8a2d\u4e86\u4e00\u4e9b\u7279\u6b8a\u542b\u7fa9\u7684\u65d7\u6a19\u4f86\u63a7\u5236\u7a0b\u5f0f\u7684\u6d41\u7a0b\u3002\u4f46\u554f\u984c\u662f\u9019\u6a23\u7684\u5beb\u6cd5\u901a\u5e38\u53ea\u6709\u4f5c\u8005\u624d\u6703\u770b\u7684\u61c2\uff0c\u751a\u81f3\u904e\u4e86\u4e00\u6bb5\u6642\u65e5\u4e4b\u5f8c\uff0c\u9023\u4f5c\u8005\u81ea\u5df1\u4e5f\u6703\u5fd8\u8a18\u81ea\u5df1\u7576\u521d\u7a0b\u5f0f\u70ba\u4ec0\u9ebc\u8981\u9019\u6a23\u5beb\u4e86\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright\" title=\"Kent Beck\u7684\u5be6\u4f5c\u6a21\u5f0f\" src=\"http:\/\/im1.book.com.tw\/image\/getImage?i=http:\/\/www.books.com.tw\/img\/001\/061\/17\/0010611737.jpg&amp;w=348&amp;h=348\" alt=\"\" width=\"222\" height=\"222\">Kent Beck \u5efa\u8b70\u7a0b\u5f0f\u8a2d\u8a08\u8005\u4e0d\u8981\u70ba\u4e86\u5b88\u820a\u800c\u8981\u4e0d\u61c2\u5f97\u8b8a\u901a\uff0c\u4ed6\u63d0\u5230\u904e\u53bb\u6709\u4e00\u689d\u7a0b\u5f0f\u8a2d\u8a08\u7684\u6212\u5f8b\u662f\u6bcf\u500b\u526f\u7a0b\u5f0f\u90fd\u61c9\u8a72\u6709\u4e00\u500b\u5165\u53e3\u548c\u4e00\u500b\u51fa\u53e3\u3002\u9019\u662f\u70ba\u4e86\u9632\u6b62\u5728\u540c\u4e00\u500b\u526f\u7a0b\u5f0f\u7684\u591a\u500b\u5730\u65b9\u8df3\u9032\u8df3\u51fa\u800c\u5c0e\u81f4\u6df7\u6dc6\u3002\u4f46\u7531\u65bc\u904e\u53bb\u7684\u7a0b\u5f0f\u8a9e\u8a00\u5927\u91cf\u4f7f\u7528\u5168\u57df\u8b8a\u6578\uff0c\u63a1\u53d6\u9019\u6a23\u7684\u6212\u5f8b\u6709\u5b83\u7684\u9053\u7406\uff0c\u4f46\u5728\u73fe\u4ee3\u50cf Java \u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u65b9\u6cd5\u5927\u591a\u8f03\u5c0f\uff0c\u800c\u4e14\u901a\u5e38\u4f7f\u7528\u5c40\u90e8\u8b8a\u6578\uff0c\u5c31\u6c92\u6709\u5fc5\u8981\u518d\u5b88\u820a\u3002\u8f15\u7387\u6cbf\u8972\u9019\u689d\u7a0b\u5f0f\u8a2d\u8a08\u7684\u4fd7\u4f8b\uff0c\u6703\u59a8\u7919\u9632\u885b\u5b50\u53e5\u7684\u4f7f\u7528\u3002[ref]\u535a\u78a9\u6587\u5316\u7de8\u8b6f\uff082013\uff09\uff0c\u300aKent Beck \u7684\u5be6\u4f5c\u6a21\u5f0f\u300b\uff0cp.103\u3002[\/ref]\u9075\u5f9e Kent Beck \u5efa\u8b70\uff0c\u7576\u540c\u4eba\u770b\u5230\u5f88\u9577\u7684\u53c8\u5f88\u591a\u5c64\u7684 if-then-else \u7684\u7a0b\u5f0f\u7247\u6bb5\u6642\uff0c\u6211\u901a\u5e38\u6703\u8a66\u8457\u628a\u5b83\u6539\u5beb\u9632\u885b\u5b50\u53e5\u7684\u5beb\u6cd5\u3002<\/p>\n<p>\u4e8c\u3001\u554f\u984c\u9818\u57df\u7684\u80cc\u666f\u8108\u7d61<\/p>\n<p>\u904b\u7528\u9632\u885b\u5b50\u53e5\u4e4b\u5f8c\uff0c\u7a0b\u5f0f\u78bc\u5c31\u6703\u5f88\u5bb9\u6613\u8b93\u4eba\u5206\u8fa8\u4e3b\u6d41\u7a0b\u548c\u4f8b\u5916\u8655\u7406\u800c\u4e0d\u6703\u76f8\u4e92\u6df7\u6dc6\uff0c\u9019\u6703\u4f7f\u7a0b\u5f0f\u78bc\u986f\u793a\u51fa\u696d\u52d9\u6d41\u7a0b\u672c\u8eab\u7684<a href=\"http:\/\/en.wikipedia.org\/wiki\/Cohesion_(computer_science)\">\u5167\u805a\u6027<\/a>\u3002\u4f46\u7a0b\u5f0f\u78bc\u7576\u4e2d\u53ef\u80fd\u6703\u53c3\u8003\u5f88\u591a\u5171\u7528\u7684\u8b8a\u6578\u6216\u65b9\u6cd5\uff0c\u5305\u62ec\u7cfb\u7d71\u74b0\u5883\u53c3\u6578\u3001\u9650\u5236\u8cc7\u6599\u7684\u689d\u4ef6\u3001\u4ee5\u53ca\u8cc7\u6599\u7684\u5b58\u53d6\u8207\u63a7\u5236\u7b49\uff0c\u9019\u4e9b\u8b8a\u6578\u548c\u65b9\u6cd5\u6211\u5011\u53ef\u4ee5\u5c07\u5b83\u5011\u5f9e\u7a0b\u5f0f\u7576\u4e2d\u8403\u53d6\u51fa\u4f86\uff0c\u8b58\u5225\u51fa\u554f\u984c\u9818\u57df\u7684\u80cc\u666f\u8108\u7d61\u985e\u5225\u3002\u540c\u4eba\u901a\u5e38\u6703\u4ee5 XXXContext \u4f86\u547d\u540d\uff0c\u628a\u539f\u4f86\u5728\u7a0b\u5f0f\u4e2d\u51fa\u73fe\u7684\u4e0a\u8ff0\u8b8a\u6578\u548c\u65b9\u6cd5\uff0c\u642c\u5230 XXXContext \u4e2d\uff0c\u4e26\u4e14\u8996\u9700\u8981\u5c0d XXXContext \u9032\u884c extract Method \u7684\u91cd\u69cb\u624b\u6cd5\u3002\u7576\u4f60\u9019\u6a23\u505a\u4ee5\u5f8c\uff0c\u4f60\u6703\u767c\u73fe\u95dc\u65bc\u7cfb\u7d71\u53c3\u6578\u3001\u9650\u5236\u689d\u4ef6\u53ca\u8cc7\u6599\u5b58\u53d6\u63a7\u5236\u7b49\u80cc\u666f\u8108\u7d61\u6703\u8b8a\u6210\u4e00\u500b\u6574\u9ad4\u6027\u800c\u6e05\u695a\u7684\u6982\u5ff5\uff0c\u800c\u4e14\u4e5f\u89e3\u9664\u4e86\u8a31\u591a\u539f\u4f86\u7a0b\u5f0f\u5b58\u5728\u7684<a href=\"http:\/\/en.wikipedia.org\/wiki\/Coupling_(computer_science)\">\u8026\u548c\u6027<\/a>\u3002<\/p>\n<p>\u4e09\u3001\u5ba3\u544a\u5f0f\u8a9e\u610f<\/p>\n<p>XXXContext \u6700\u5927\u7684\u597d\u8655\u662f\u4fc3\u6210\u4e86\u5ba3\u544a\u5f0f\u8a9e\u610f\u7684\u5be6\u73fe\uff0c\u540c\u4eba\u5e38\u7528\u5169\u7a2e\u5ba3\u544a\u5f0f\u8a9e\u610f\u4f86\u7c21\u5316\u8ff4\u5708\u4e2d\u6df1\u5c64\u7684\u689d\u4ef6\u5224\u65b7\u5f0f\u3002\u4e00\u7a2e\u662f\u540d\u4e4b XXXValidation \u7684\u9a57\u8b49\uff0c\u800c\u53e6\u4e00\u7a2e\u5247\u662f\u540d\u4e4b\u70ba XXXVerification \u7684\u78ba\u8a8d\uff0c\u5169\u8005\u7684\u5dee\u7570\u5728\u65bc\u524d\u8005\u662f\u9a57\u8b49\u7b26\u5408\u4ea4\u6613\u7684\u689d\u4ef6\uff0c\u800c\u5f8c\u8005\u5247\u662f\u78ba\u8a8d\u4ea4\u6613\u5f8c\u7684\u6d41\u7a0b\u8655\u7406\u3002\u6240\u4ee5\u4e00\u822c\u5316\u7684\u7a0b\u5f0f\u67b6\u69cb\u5927\u6982\u662f\u9577\u5f97\u50cf\u4e0b\u9762\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre class=\"brush: java; gutter: true\">if (null == request) {\n  return null;\n}\n\nXXXContext ctx = new XXXContext(conn);\nXXXResult result = new XXXResult();\n\ntry {\n  new XXXValidation(ctx, request)\n    .validate(new XXXIdIsVaild())\n    .validate(new XXXQtyIsEnought())\n    .end();\n} catch (XXXValidationException ex) {\n  result.add(VAL_ERR_CODE, ex.getErrorCode());\n  return result;\n}\n\nXXXCondition condition=ctx.getCondition(request);\nList&lt;XXXModel&gt; models = dao.query(condition);\n\ntry {\n  List&lt;XXXData&gt; content = new XXXVerification(ctx, request)\n    .verify(new XXXIsNotExpiration())\n    .verify(new XXXRemainedQtyGTZero())\n    .select(new XXXTransform(), models);\n} catch (XXXVetificationException ex) {\n  result.add(VER_ERR_CODE, ex.getErrorCode());\n  return result;\n}\n\nresult.add(DATA, content);\n\nreturn result;<\/pre>\n<p>\u4e0a\u9762\u9019\u6bb5\u7a0b\u5f0f\u986f\u793a\u5f9e request \u8a0a\u606f\u6aa2\u67e5\u4ee3\u78bc\u8207\u6578\u91cf\uff0c\u82e5\u4ee3\u78bc\u5408\u6cd5\u4e14\u6578\u91cf\u8db3\u5920\u5247\u5f9e\u900f\u904e <a href=\"http:\/\/en.wikipedia.org\/wiki\/Data_access_object\">dao<\/a> \u5f9e\u8cc7\u6599\u4f86\u6e90\u4e2d\u53d6\u5f97\u8cc7\u6599\uff0c\u7136\u5f8c\u518d\u9078\u53d6\u672a\u903e\u671f\u4e14\u9918\u984d\u8d85\u904e\u7684\u8cc7\u6599\uff0c\u4e26\u653e\u5230 result \u56de\u50b3\u3002\u904e\u7a0b\u4e2d\u82e5\u9a57\u8b49\u6216\u78ba\u8a8d\u6709\u932f\u8aa4\u767c\u751f\uff0c\u5247\u62cb\u51fa\u7570\u5e38\u4ee5\u9632\u885b\u5b50\u53e5\u7684\u5beb\u6cd5\u4f86\u5340\u9694\u4e3b\u6d41\u7a0b\u548c\u7570\u5e38\u6d41\u7a0b\uff0c\u4ee5\u514d\u9664\u7528 if \u5224\u65b7\u56de\u50b3\u503c\u800c\u5f71\u97ff\u7a0b\u5f0f\u7684\u7c21\u660e\u98a8\u683c\u3002\u5176\u4e2d\u5728 validate()\u3001verify()\u3001\u4ee5\u53ca select() \u7684\u7b2c\u4e00\u9805\u5f15\u6578\u90fd\u662f command \u6216 action \u7269\u4ef6\uff0c\u5b83\u5011\u7684\u547c\u53eb\u754c\u9762\u662f\u50b3\u5165 XXXContext \u7684\u5be6\u4f8b ctx\u3001\u4ea4\u6613\u8a0a\u606f\u7684\u5be6\u4f8b request\u3001\u4ee5\u53ca\u50b3\u5165 select() \u7684\u7b2c\u4e8c\u9805\u5f15\u6578\u8cc7\u6599\u4e32\u5217\u7684\u6bcf\u4e00\u9805\u6210\u54e1 XXXModel \u7684\u5be6\u4f8b\uff0c\u4ee5\u9032\u884c\u5ef6\u9072\u904b\u7b97\u4f86\u5f97\u5230\u8cc7\u6599\u904e\u6ffe\u53ca\u6620\u5c04\u7684\u7d50\u679c\u3002<\/p>\n<p>\u9019\u7a2e\u5ba3\u544a\u5f0f\u8a9e\u610f\u7684\u5beb\u6cd5<a href=\"https:\/\/lifeparty.idv.tw\/blog\/archives\/9556\">\u4e4b\u524d\u66fe\u7d93\u6709\u6587\u7ae0<\/a>\u63d0\u5230\u904e\uff0c\u6240\u4ee5\u9019\u7bc7\u6587\u7ae0\u5c31\u4e0d\u518d\u82b1\u7bc7\u8f3b\u591a\u52a0\u4ecb\u7d39\u3002\u4f60\u61c9\u8a72\u53ef\u4ee5\u9ad4\u6703\u5230\uff0c\u7528\u4ee5\u4e0a\u9019\u6a23\u7684\u6a21\u5f0f\u4f86\u91cd\u69cb legacy code\uff0c\u7a0b\u5f0f\u7684\u610f\u5716\u6703\u5f88\u6e05\u695a\u5730\u6d6e\u73fe\u51fa\u4f86\uff0c\u4e5f\u6703\u76f4\u63a5\u5177\u9ad4\u5730\u95dc\u9023\u5230\u554f\u984c\u9818\u57df\u696d\u52d9\u908f\u8f2f\u7684\u8a9e\u8a00\uff0c\u800c\u4e0d\u662f\u4e00\u5927\u4e32\u7684 if-then-else \u6216\u662f for \u8ff4\u5708\u7684\u8a9e\u6cd5\uff0c\u9019\u6709\u52a9\u65bc\u4e0d\u540c\u89c0\u9ede\u7684\u76f8\u4e92\u6e9d\u901a\u3002\u4f60\u53ef\u4ee5\u5f9e\u4e3b\u8981\u6d41\u7a0b\u4e2d\u5177\u9ad4\u660e\u767d\u7a0b\u5f0f\u5728\u505a\u4ec0\u9ebc\uff0c\u800c\u5982\u679c\u9700\u8981\u77ad\u89e3\u5be6\u4f5c\u7684\u7d30\u7bc0\uff0c\u5247\u53ef\u4ee5\u9032\u4e00\u6b65\u53bb\u53c3\u8003\u90a3\u4e9b\u5f88\u7c21\u55ae\u7684\u7269\u4ef6\u5316\u4e4b\u5c0f\u51fd\u5f0f\u3002\u7531\u65bc\u4e0d\u540c\u95dc\u5207\u9ede\u7684\u5206\u96e2\uff0c\u7a0b\u5f0f\u8b8a\u5f97\u66f4\u7c21\u55ae\u800c\u4e14\u5bb9\u6613\u6e2c\u8a66\uff0c\u5c0d\u5f8c\u7e8c\u7684\u7a0b\u5f0f\u7dad\u8b77\u751a\u81f3\u60f3\u8981\u589e\u52a0\u529f\u80fd\u7684\u9700\u6c42\u4f86\u8aaa\uff0c\u90fd\u6703\u5f97\u5230\u83ab\u5927\u7684\u52a9\u76ca\u5440\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7528\u4ee5\u4e0a\u9019\u6a23\u7684\u6a21\u5f0f\u4f86\u91cd\u69cb legacy code\uff0c\u7a0b\u5f0f\u7684\u610f\u5716\u6703\u5f88\u6e05\u695a\u5730\u6d6e\u73fe\u51fa\u4f86\uff0c\u4e5f\u6703\u76f4\u63a5\u5177\u9ad4\u5730\u95dc\u9023\u5230\u554f\u984c\u9818\u57df\u696d\u52d9\u908f\u8f2f\u7684\u8a9e\u8a00\uff0c\u800c\u4e0d\u662f\u4e00\u5927\u4e32\u7684 if-then-else \u6216\u662f for \u8ff4\u5708\u7684\u8a9e\u6cd5\uff0c\u9019\u6709\u52a9\u65bc\u4e0d\u540c\u89c0\u9ede\u7684\u76f8\u4e92\u6e9d\u901a\u3002\u4f60\u53ef\u4ee5\u5f9e\u4e3b\u8981\u6d41\u7a0b\u4e2d\u5177\u9ad4\u660e\u767d\u7a0b\u5f0f\u5728\u505a\u4ec0\u9ebc\uff0c\u800c\u5982\u679c\u9700\u8981\u77ad\u89e3\u5be6\u4f5c\u7684\u7d30\u7bc0\uff0c\u5247\u53ef\u4ee5\u9032\u4e00\u6b65\u53bb\u53c3\u8003\u90a3\u4e9b\u5f88\u7c21\u55ae\u7684\u7269\u4ef6\u5316\u4e4b\u5c0f\u51fd\u5f0f\u3002\u7531\u65bc\u4e0d\u540c\u95dc\u5207\u9ede\u7684\u5206\u96e2\uff0c\u7a0b\u5f0f\u8b8a\u5f97\u66f4\u7c21\u55ae\u800c\u4e14\u5bb9\u6613\u6e2c\u8a66\uff0c\u5c0d\u5f8c\u7e8c\u7684\u7a0b\u5f0f\u7dad\u8b77\u751a\u81f3\u60f3\u8981\u589e\u52a0\u529f\u80fd\u7684\u9700\u6c42\u4f86\u8aaa\uff0c\u90fd\u6703\u5f97\u5230\u83ab\u5927\u7684\u52a9\u76ca\u5440\u3002 <a href=\"https:\/\/lifeparty.idv.tw\/blog\/archives\/9967\">\u95b1\u8b80\u5168\u6587 <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29,32,6,37,43,19],"tags":[],"class_list":["post-9967","post","type-post","status-publish","format-standard","hentry","category-29","category-32","category-6","category-37","category-43","category-19"],"_links":{"self":[{"href":"https:\/\/lifeparty.idv.tw\/blog\/wp-json\/wp\/v2\/posts\/9967","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeparty.idv.tw\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeparty.idv.tw\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeparty.idv.tw\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeparty.idv.tw\/blog\/wp-json\/wp\/v2\/comments?post=9967"}],"version-history":[{"count":55,"href":"https:\/\/lifeparty.idv.tw\/blog\/wp-json\/wp\/v2\/posts\/9967\/revisions"}],"predecessor-version":[{"id":12185,"href":"https:\/\/lifeparty.idv.tw\/blog\/wp-json\/wp\/v2\/posts\/9967\/revisions\/12185"}],"wp:attachment":[{"href":"https:\/\/lifeparty.idv.tw\/blog\/wp-json\/wp\/v2\/media?parent=9967"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeparty.idv.tw\/blog\/wp-json\/wp\/v2\/categories?post=9967"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeparty.idv.tw\/blog\/wp-json\/wp\/v2\/tags?post=9967"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}