{"rsdb":{"rid":"156523","subhead":"","postdate":"0","aid":"117482","fid":"54","uid":"1","topic":"1","content":"<p>\u5728\u300a<a href=https:\/\/www.cppentry.com style=text-decoration:underline;font-size:14px;color:#F70968; target=_blank>java<\/a> script\u5fcd\u8005\u79d8\u7c4d\u300b2.4\u6d4b\u8bd5\u6761\u4ef6\u57fa\u7840\u77e5\u8bc6\u4e2d\uff0c\u4f5c\u8005\u7ed9\u51fa\u4e86\u4e00\u4e2a\u7cbe\u7b80\u7248\u7684assert\u548cassert\u7ec4\u7684\u5b9e\u73b0\uff0c\u5bf9\u4e8e\u521d\u5b66\u8005\u800c\u8a00\uff0c\u8fd9\u65e0\u7591\u662f\u4e00\u4e2a\u5f88\u597d\u7684\u4f8b\u5b50\uff0c\u65e2\u8ba9\u6211\u4eec\u5f97\u5230\u4e86\u4e00\u4e2a\u597d\u7528\u7684\u5c0f\u5de5\u5177\uff0c\u53c8\u8ba9\u6211\u4eec\u770b\u5230\u4e86\u7528<a href=https:\/\/www.cppentry.com style=text-decoration:underline;font-size:14px;color:#F70968; target=_blank>java<\/a> script\u5b9e\u73b0\u8fd9\u4e2a\u5de5\u5177\u662f\u5982\u6b64\u7684\u7b80\u5355\u3002<\/p><br\/><p>\u8fd9\u91cc\u4e3b\u8981\u662f\u4ece\u4ee3\u7801\u89d2\u5ea6\u67002.4\u7ae0\u8282\u505a\u4e00\u4e9b\u8865\u5145\u548c\u8bf4\u660e\uff0c\u5305\u62ec\u539f\u6709\u4ee3\u7801\u4e2d\u7684\u4e00\u4e9bbug\u53ca\u5176\u4fee\u6b63\u3002\u5f53\u7136\u4e86\uff0c\u65e2\u7136\u6d89\u53ca\u5230\u4e86\u4ee3\u7801\u89e3\u6790\uff0c\u8fd9\u5c31\u4e0d\u80fd\u8bf4\u662f\u521d\u5b66\u8005\u7684\u8303\u7574\u4e86\uff0c\u81f3\u5c11\u8981\u591ajava script\u4e2d\u7684\u51fd\u6570\u58f0\u660e\uff0c\u51fd\u6570\u5b9e\u73b0\uff0c\u51fd\u6570\u95ed\u5305\u7b49\u5185\u5bb9\u6709\u4e86\u57fa\u672c\u7684\u4e86\u89e3\u540e\uff0c\u624d\u80fd\u770b\u61c2\u8fd9\u7bc7\u6587\u7ae0\u3002<\/p><br\/><p><strong>1.assert<\/strong><\/p><br\/><p>\u5148\u6765\u8bf4\u8bf4assert\uff0c\u5e94\u7528\u4ee3\u7801\u662f\u8fd9\u4e2a\u6837\u5b50\u7684\uff1a<\/p><br\/><p>assert\u5c31\u662f\u4e00\u4e2ajava script\u51fd\u6570\uff0c\u6709\u4e24\u4e2a\u53c2\u6570\uff0c\u7b2c\u4e00\u4e2a\u53c2\u6570\u7528\u6765\u5224\u65ad\u8868\u8fbe\u5f0f\u662ftrue\u6216false\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u7528\u6765\u5bf9\u6d4b\u8bd5\u505a\u4e00\u4e9b\u8bf4\u660e\uff0c\u6d4b\u8bd5\u7ed3\u679c\u76f4\u63a5\u663e\u793a\u5728html\u4e2d\uff0c\u8fd9\u91cc\u7684\u6d4b\u8bd5\u7ed3\u679c\u662f\u8fd9\u4e2a\u6837\u5b50\u7684\uff1a<\/p><br\/><p><img src=\"..\/..\/upload\/2017_02\/170216064981522.png\" alt=\"\" \/><\/p><br\/><p>\u8fd8\u633a\u9177\u7684\u5427\u3002\u597d\u4e86\uff0c\u90a3\u4e48\u6211\u4eec\u5c31\u6765\u770b\u770b\u5982\u4f55\u5b9e\u73b0\u8fd9\u4e2aassert\uff1f<\/p><br\/><p>\u9996\u5148\u65b0\u5efa\u4e00\u4e2ahtml\u6587\u4ef6<\/p><br\/><p>\u7136\u540e\u5728body\u4e2d\u52a0\u5165\u4e00\u4e2aid\u4e3arusults\u7684ul\u8282\u70b9\uff1a<\/p><br\/><p>?\u540e\u9762\u6240\u6709\u7684assert\u7ed3\u679c\u5217\u8868\u90fd\u8981\u52a0\u5230\u8fd9\u4e2a\u8282\u70b9\u4e0b\u3002<\/p><br\/><p>assert\u6267\u884c\u5b8c\u6210\u540e\u7684html\u7ed3\u679c\u662f\u8fd9\u6837\u7684\uff1a<\/p><br\/><p><img src=\"..\/..\/upload\/2017_02\/170216064981523.png\" alt=\"\" \/><\/p><br\/><p>\u770b\u8d77\u6765\u633a\u7b80\u5355\u7684\u5427\uff0c\u5c31\u662f\u5728ul\u8282\u70b9\u4e0b\u5bf9\u6bcf\u4e2aassert\u6d4b\u8bd5\u7528li\u8282\u70b9\u6765\u8868\u73b0\u3002\u5bf9\u4e8e\u6d4b\u8bd5\u4e3atrue\u7684li\u8282\u70b9\u7684class\u88ab\u8d4b\u503c\u4e3apass\uff0c\u5bf9\u4e8e\u6d4b\u8bd5\u4e3afalse\u7684li\u8282\u70b9\u7684class\u88ab\u8d4b\u503c\u4e3afail\u3002<\/p><br\/><p>\u539f\u7406\u6e05\u695a\u4e86\uff0c\u90a3\u4e48\u8fd9\u4e2aassert\u51fd\u6570\u7684\u4ee3\u7801\u770b\u8d77\u6765\u5c31\u4e0d\u590d\u6742\u4e86\uff1a<\/p><br\/><p>\u5269\u4e0b\u7684\u5c31\u662f\u6dfb\u52a0\u4e00\u4e9bcss\uff0c\u7f8e\u5316\u4e00\u4e0bhtml\u4e86\uff0c\u65e2\u7136\u5df2\u7ecf\u5b66\u4e60java script\u4e86\uff0c\u4e00\u822c\u7684html\u548ccss\u7684\u5185\u5bb9\u5c31\u4e0d\u5728\u8fd9\u8bf4\u4e86\uff0c\u5b8c\u6574\u7684html\u5982\u4e0b\uff1a<\/p><br\/><p>asserts\u4ee3\u8868\u4e00\u4e2a\u6d4b\u8bd5\u7ec4\uff0c\u5e94\u7528\u4ee3\u7801\u662f\u8fd9\u4e2a\u6837\u5b50\u7684\uff1a<\/p><br\/><p>\u8fd9\u6bb5\u4ee3\u7801\u662f\u8bf4\uff0c\u5148\u521b\u5efa\u4e00\u4e2a\u63cf\u8ff0\u4e3a\u201c\u6570\u503c\u8ba1\u7b97\u6d4b\u8bd5\u201d\u7684\u6d4b\u8bd5\u7ec4\uff0c\u91cc\u9762\u52a0\u4e00\u7ec4assert\uff1b\u518d\u521b\u5efa\u4e00\u4e2a\u63cf\u8ff0\u4e3a\u201c\u5b57\u7b26\u4e32\u6d4b\u8bd5\u201d\u7684\u6d4b\u8bd5\u7ec4\uff0c\u91cc\u9762\u52a0\u4e00\u7ec4assert\u3002\u4e24\u4e2a\u6d4b\u8bd5\u7ec4\u4e4b\u95f4\u662f\u5e73\u7ea7\u7684\u5173\u7cfb\u3002<\/p><br\/><p>\u6bcf\u4e2a\u6d4b\u8bd5\u7ec4\u91cc\u7684\u4e00\u7ec4assert\u90fd\u662f\u4e0d\u540c\u7684\uff0c\u56e0\u6b64\u9700\u8981\u4e00\u4e2afunction\u5305\u88c5\u8d77\u6765\u3002\u8fd9\u4e2a\u51fd\u6570\u53ef\u4ee5\u53eb\u505a\u201c\u6d4b\u8bd5\u7ec4assert\u7ec4\u88c5\u51fd\u6570\u201d\u3002<\/p><br\/><p>\u8fd9\u91cc\u7684\u6d4b\u8bd5\u7ed3\u679c\u662f\u8fd9\u4e2a\u6837\u5b50\u7684\uff1a<\/p><br\/><p><img src=\"..\/..\/upload\/2017_02\/170216064981524.png\" alt=\"\" \/><\/p><br\/><p>\u770b\u8d77\u6765\u66f4\u9177\u4e86\u5427\u3002\u4f60\u6ce8\u610f\u5230\u4e86\u6ca1\u6709\uff0c\u8fd9\u91cc\u6709\u4e00\u4e2a\u9700\u6c42\u70b9\uff1a\u5982\u679c\u6d4b\u8bd5\u7ec4\u91cc\u9762\u6709\u4e00\u4e2aassert\u6d4b\u8bd5\u4e3afalse\uff0c\u90a3\u4e48\u6574\u4e2a\u6d4b\u8bd5\u7ec4\u4e5f\u8981\u6807\u8bb0\u4e3afalse\u3002<\/p><br\/><p>\u8fd9\u4e2ahtml\u7684\u7ed3\u6784\u5982\u4e0b\uff1a<\/p><br\/><p><img src=\"..\/..\/upload\/2017_02\/170216064981525.png\" alt=\"\" \/><\/p><br\/><p>\u6bcf\u4e2a\u6d4b\u8bd5\u7ec4\u7528li\u8282\u70b9\u8868\u73b0\uff0c\u800cli\u8282\u70b9\u4e0b\u53c8\u5185\u5d4c\u4e86\u4e00\u4e2aul\u8282\u70b9\uff0c\u5728\u8fd9\u4e2a\u5185\u5d4c\u7684ul\u8282\u70b9\u4e0b\u624d\u662f\u6d4b\u8bd5\u7ec4\u5185\u6240\u6709assert\u7684li\u8282\u70b9\u8868\u73b0\u3002<\/p><br\/><p>\u5f53\u7136\u4e86\uff0c\u6709\u56fe\u6709\u771f\u76f8\uff0c\u8fd9\u91cc\u5f88\u660e\u663e\u6709\u4e00\u4e2a\u5c0fbug\uff0c\"a\" + \"b\" === \"ab\"\u660e\u660e\u662f\u6b63\u786e\u7684\uff0c\u600e\u4e48\u663e\u793a\u7684li\u8282\u70b9\u4e5f\u88ab\u753b\u7ea2\u7ebf\u4e86\uff1f\u6216\u8bb8\u4f60\u4e5f\u53ef\u4ee5\u8fa9\u89e3\u4e3a\u65e2\u7136\u662f\u6574\u4e2a\u6d4b\u8bd5\u7ec4\u5931\u8d25\u4e86\uff0c\u90a3\u4e48\u4e3a\u8fd9\u4e2a\u6b63\u786e\u7684li\u8282\u70b9\u753b\u7ea2\u7ebf\u4e5f\u8bf4\u5f97\u8fc7\u53bb\u5427\uff1f\u8c01\u8ba9\u5b83\u5c5e\u4e8e\u5931\u8d25\u7684\u6d4b\u8bd5\u7ec4\u5462\uff1f\u65e2\u7136\u9009\u62e9\u4e86\u732a\u4e00\u6837\u7684\u961f\u53cb\uff0c\u90a3\u5c31\u5f97\u8ba4\u547d\u3002\u53ef\u662f\u90a3\u4f60\u53c8\u600e\u4e48\u89e3\u91ca\u8fd9\u4e2a\u6b63\u786e\u7684li\u8282\u70b9\u88ab\u4e00\u8fb9\u753b\u4e86\u7ea2\u7ebf\uff0c\u4e00\u8fb9\u5374\u663e\u793a\u4e3a\u7eff\u8272\u7684\u6587\u5b57\uff1f\u8fd9\u660e\u663e\u81ea\u76f8\u77db\u76fe\u561b\u3002<\/p><br\/><p>\u597d\u4e86\uff0c\u5148\u4e0d\u7406\u8fd9\u4e2a\u5c0fbug\u4e86\uff0c\u7a0d\u540e\u6211\u4eec\u4f1a\u89e3\u51b3\u8fd9\u4e2abug\u3002\u73b0\u5728\u8fd8\u662f\u8ba9\u6211\u4eec\u8001\u8001\u5b9e\u5b9e\u7684\u6765\u770b\u770b\u8fd9\u4e2a\u6d4b\u8bd5\u7ec4\u7684\u529f\u80fd\u662f\u5982\u4f55\u5b9e\u73b0\u7684\u5427\uff1f<\/p><br\/><p>html\u76f8\u5173\u7684\u90e8\u5206\u90fd\u4e0d\u6539\uff0cbody\u91cc\u8fd8\u662f\u90a3\u4e2a\u5b64\u96f6\u96f6\u7684id\u4e3arusults\u7684ul\u8282\u70b9\uff0ccss\u4e5f\u5b8c\u5168\u4e0d\u7528\u52a8\uff0c\u9700\u8981\u4fee\u6539\u7684\u53ea\u6709java script\u4ee3\u7801\u3002<\/p><br\/><p>\u6ce8\u610f\u6d4b\u8bd5\u7ec4\u7684\u4ee3\u7801\u4e2d\u5148\u8c03\u7528\u4e86\u4e00\u4e2aasserts\u51fd\u6570\uff0c\u8fd9\u4e2a\u51fd\u6570\u8d1f\u8d23\u521d\u59cb\u5316\u6d4b\u8bd5\u7ec4\u7684\u4e00\u4e9b\u73af\u5883\uff0c\u7b80\u5355\u7684\u8bf4\u5b83\u662f\u8fd9\u4e2a\u6837\u5b50\u7684\uff1a<\/p><br\/><p>\u8fd9\u91cc\u8fd9\u91cc\u5bf9assert\u91cd\u65b0\u8fdb\u884c\u4e86\u8d4b\u503c\uff0c\u5f53\u7136\u6211\u4eec\u9996\u5148\u9700\u8981\u77e5\u9053\u8fd9\u79cdassert\u4e4b\u524d\u6ca1\u6709var\u58f0\u660e\u7684\uff0c\u8bf4\u660e\u8fd9\u4e2a\u53d8\u91cf\u5df2\u7ecf\u5728\u5168\u5c40\u7684window\u4e2d\uff0c\u6216\u8005\u5c06\u5728\u8fd9\u53e5\u4ee3\u7801\u6267\u884c\u5904\u88ab\u52a0\u5165\u5230\u4e86\u5168\u5c40\u7684window\u4e2d\uff0c\u800c\u6211\u4eec\u4e0a\u9762\u5728\u8bf4\u5355\u4e2aassert\u7684\u65f6\u5019\u4e0d\u662f\u5df2\u7ecf\u6709\u4e86\u4e00\u4e2aassert\u51fd\u6570\u7684\u5b9e\u73b0\u4e86\u5417\uff1f\u90a3\u4e2aassert\u4e5f\u662f\u5728\u5168\u5c40\u7684window\u4e2d\u7684\u3002\u6beb\u65e0\u7591\u95ee\uff0c\u5728\u8c03\u7528asserts\u51fd\u6570\u540e\uff0c\u539f\u6709\u7684assert\u51fd\u6570\u5c31\u88ab\u8986\u76d6\u6389\u4e86\u3002test\u53d8\u91cf\u4e5f\u662f\u7c7b\u4f3c\u7684\uff0c\u5728\u8c03\u7528asserts\u51fd\u6570\u540e\uff0c\u5c06\u88ab\u52a0\u5165\u5230\u5168\u5c40\u7684window\u4e2d\u3002<\/p><br\/><p>\u6ce8\u610fasserts\u51fd\u6570\u5f00\u59cb\u7684\u90a3\u4e2aresults\u53d8\u91cf\uff0c\u56e0\u4e3aasserts\u51fd\u6570\u8c03\u7528\u540e\u4f1a\u5728\u5168\u5c40\u7684window\u589e\u52a0\u4e24\u4e2a\u51fd\u6570assert\u548ctest\uff0c\u800c\u8fd9\u4e2aresults\u53d8\u91cf\u5c31\u5fc5\u7136\u7684\u6210\u4e3a\u4e86\u8fd9\u4e24\u4e2a\u51fd\u6570\u95ed\u5305\u7684\u4e00\u90e8\u5206\u3002<\/p><br\/><p>\u6211\u4eec\u5148\u770b\u770b\u8fd9\u4e2atest\u51fd\u6570\u662f\u5982\u4f55\u5b9e\u73b0\u7684\uff1a<\/p><br\/><p>\u5728test\u51fd\u6570\u6267\u884c\u7684\u5f00\u59cb\uff0cresults\u88ab\u6307\u5411\u4e86body\u4e0b\u7684ul\u8282\u70b9\uff0c\u5e76\u5728\u6b64\u57fa\u7840\u4e0a\u5b8c\u6210\u4e86\u6d4b\u8bd5\u7ec4\u8868\u73b0\u8282\u70b9\u7684\u521b\u5efa\uff0c\u7136\u540eresults\u88ab\u6307\u5411\u4e86\u6d4b\u8bd5\u7ec4\u5185\u5d4c\u7684ul\u8282\u70b9\u4e0a\uff0c\"\u6d4b\u8bd5\u7ec4assert\u7ec4\u88c5\u51fd\u6570\"\u88ab\u8c03\u7528\uff0c\u65b0\u7684assert\u8868\u73b0\u8282\u70b9\u5c31\u4f1a\u88ab\u52a0\u5165\u5230results\u8282\u70b9\u4e0b\u3002<\/p><br\/><p>\u4e0b\u9762\u6211\u4eec\u6765\u770b\u770b\u65b0\u7684assert\u51fd\u6570\u662f\u5982\u4f55\u5b9e\u73b0\u7684\uff1a<\/p><br\/><p>\u597d\u4e86\uff0c\u641e\u5b9a\uff0c\u5b8c\u6574\u7684html\u5982\u4e0b\uff1a<\/p><br\/><p><strong>3.\u4fee\u6b63\u6d4b\u8bd5\u7ec4\u4e3afalse\u7684bug<\/strong><\/p><br\/><p>\u4e4b\u6240\u4ee5\u6709\u8fd9\u4e2abug\uff0c\u662f\u56e0\u4e3a\u8fd9\u91cc\u7684\u6d4b\u8bd5\u7ec4\u8868\u73b0\u592a\u7b80\u5355\u4e86\uff0c\u76f4\u63a5\u5728li\u8282\u70b9\u4e0a\u8bbe\u7f6eclass\uff0c\u4f7f\u5f97css\u7684\u53ef\u63a7\u6027\u4e0d\u9ad8\u3002\u5b66\u8fc7css\u5217\u8868\u90e8\u5206\u7684\u5e94\u8be5\u90fd\u6e05\u695a\uff0c\u5bf9\u5217\u8868\u7684\u63a7\u5236\u5e94\u8be5\u4f7f\u7528\u884c\u5185\u6587\u672cspan\u561b\u3002<\/p><br\/><p>\u6211\u4eec\u5e0c\u671b\u7684\u663e\u793a\u6548\u679c\u5e94\u8be5\u662f\uff1a<\/p><br\/><p><img src=\"..\/..\/upload\/2017_02\/170216064981527.png\" alt=\"\" \/><\/p><br\/><p>\u76f8\u5e94\u7684html\u7ed3\u6784\u5e94\u8be5\u662f\uff1a<\/p><br\/><p><img src=\"..\/..\/upload\/2017_02\/170216064981526.png\" alt=\"\" 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