{"id":3160,"date":"2024-11-10T08:32:33","date_gmt":"2024-11-10T00:32:33","guid":{"rendered":"https:\/\/fwq.ai\/blog\/3160\/"},"modified":"2024-11-10T08:32:33","modified_gmt":"2024-11-10T00:32:33","slug":"js-%e5%a6%82%e4%bd%95%e7%bb%a7%e6%89%bf","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/3160\/","title":{"rendered":"js \u5982\u4f55\u7ee7\u627f"},"content":{"rendered":"<blockquote><p>\n  javascript \u7ee7\u627f\u6709\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\uff1a\u539f\u578b\u7ee7\u627f\uff1a\u521b\u5efa\u65b0\u5bf9\u8c61\uff0c\u5176\u539f\u578b\u6307\u5411\u7236\u5bf9\u8c61\u7684\u539f\u578b\uff0c\u53ef\u8bbf\u95ee\u7236\u5bf9\u8c61\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u3002\u6784\u9020\u51fd\u6570\u7ee7\u627f\uff1a\u5b50\u6784\u9020\u51fd\u6570\u8c03\u7528\u7236\u6784\u9020\u51fd\u6570\uff0c\u5c06\u7236\u6784\u9020\u51fd\u6570\u4e2d\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u590d\u5236\u5230\u5b50\u5bf9\u8c61\u4e2d\u3002\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\u53d6\u51b3\u4e8e\u9700\u6c42\uff1a\u539f\u578b\u7ee7\u627f\u7b80\u5355\u9ad8\u6548\uff0c\u9002\u5408\u7b80\u5355\u60c5\u51b5\uff1b\u6784\u9020\u51fd\u6570\u7ee7\u627f\u53ef\u7ee7\u627f\u5c5e\u6027\u548c\u65b9\u6cd5\uff0c\u5e76\u652f\u6301\u591a\u91cd\u7ee7\u627f\uff0c\u9002\u5408\u590d\u6742\u573a\u666f\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/08\/2024110805430534699.jpg\" class=\"aligncenter\" title=\"js \u5982\u4f55\u7ee7\u627f\u63d2\u56fe\" alt=\"js \u5982\u4f55\u7ee7\u627f\u63d2\u56fe\" \/><\/p>\n<p><strong>JavaScript \u7ee7\u627f<\/strong><\/p>\n<p>\u5728 JavaScript \u4e2d\uff0c\u5b9e\u73b0\u7ee7\u627f\u6709\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\uff1a<\/p>\n<p><strong>1. \u539f\u578b\u7ee7\u627f<\/strong><\/p>\n<ul>\n<li> <strong>\u539f\u7406\uff1a<\/strong>\u521b\u5efa\u4e00\u4e2a\u65b0\u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61\u7684\u539f\u578b\u6307\u5411\u7236\u5bf9\u8c61\u7684\u539f\u578b\uff0c\u4ece\u800c\u8bbf\u95ee\u7236\u5bf9\u8c61\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u3002<\/li>\n<li><strong>\u8bed\u6cd5\uff1a<\/strong><\/li>\n<\/ul>\n<pre>const child = Object.create(parent);<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p><strong>2. \u6784\u9020\u51fd\u6570\u7ee7\u627f<\/strong><\/p>\n<ul>\n<li> <strong>\u539f\u7406\uff1a<\/strong>\u5b50\u6784\u9020\u51fd\u6570\u8c03\u7528\u7236\u6784\u9020\u51fd\u6570\uff0c\u5c06\u7236\u6784\u9020\u51fd\u6570\u4e2d\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u590d\u5236\u5230\u5b50\u5bf9\u8c61\u4e2d\u3002<\/li>\n<li><strong>\u8bed\u6cd5\uff1a<\/strong><\/li>\n<\/ul>\n<pre>function Child(args) {\n  Parent.call(this, args);\n  \/\/ \u5b50\u7c7b\u7279\u6709\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\n}\nChild.prototype = Object.create(Parent.prototype);<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p><strong>\u5bf9\u6bd4<\/strong><\/p>\n<table>\n<thead>\n<tr>\n<th>**<\/th>\n<th>\u7279\u5f81<\/th>\n<th>\u539f\u578b\u7ee7\u627f<\/th>\n<th>\u6784\u9020\u51fd\u6570\u7ee7\u627f<\/th>\n<th>**<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u7b80\u5355\u6027<\/strong><\/td>\n<td>\u66f4\u7b80\u5355<\/td>\n<td>\u66f4\u590d\u6742<\/td>\n<\/tr>\n<tr>\n<td><strong>\u6548\u7387<\/strong><\/td>\n<td>\u66f4\u9ad8\u6548<\/td>\n<td>\u521b\u5efa\u65b0\u51fd\u6570\uff0c\u5f00\u9500\u8f83\u5927<\/td>\n<\/tr>\n<tr>\n<td><strong>\u7ee7\u627f\u7c7b\u578b<\/strong><\/td>\n<td>\u4ec5\u7ee7\u627f\u539f\u578b<\/td>\n<td>\u7ee7\u627f\u5c5e\u6027\u548c\u65b9\u6cd5<\/td>\n<\/tr>\n<tr>\n<td><strong>\u591a\u91cd\u7ee7\u627f<\/strong><\/td>\n<td>\u4e0d\u652f\u6301<\/td>\n<td>\u652f\u6301<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>\u9009\u62e9\u54ea\u79cd\u7ee7\u627f\u65b9\u5f0f<\/strong><\/p>\n<p>\u9009\u62e9\u7ee7\u627f\u65b9\u5f0f\u53d6\u51b3\u4e8e\u7279\u5b9a\u7684\u9700\u6c42\uff1a<\/p>\n<ul>\n<li> <strong>\u5bf9\u4e8e\u7b80\u5355\u7684\u60c5\u51b5\uff0c<\/strong>\u4f7f\u7528\u539f\u578b\u7ee7\u627f\u5c31\u8db3\u591f\u4e86\u3002<\/li>\n<li> <strong>\u5982\u679c\u9700\u8981\u7ee7\u627f\u5c5e\u6027\u548c\u65b9\u6cd5\uff0c<\/strong>\u5e76\u4e14\u652f\u6301\u591a\u91cd\u7ee7\u627f\uff0c\u90a3\u4e48\u6784\u9020\u51fd\u6570\u7ee7\u627f\u662f\u66f4\u597d\u7684\u9009\u62e9\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjs \u5982\u4f55\u7ee7\u627f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>javascript \u7ee7\u627f\u6709\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\uff1a\u539f\u578b\u7ee7\u627f\uff1a\u521b\u5efa\u65b0\u5bf9\u8c61\uff0c\u5176\u539f\u578b\u6307\u5411\u7236\u5bf9\u8c61\u7684\u539f\u578b\uff0c\u53ef\u8bbf\u95ee\u7236\u5bf9\u8c61\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u3002\u6784\u9020\u51fd\u6570\u7ee7\u627f\uff1a\u5b50\u6784\u9020\u51fd\u6570\u8c03\u7528\u7236\u6784\u9020\u51fd\u6570\uff0c\u5c06\u7236\u6784\u9020\u51fd\u6570\u4e2d\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u590d\u5236\u5230\u5b50\u5bf9\u8c61\u4e2d\u3002\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\u53d6\u51b3\u4e8e\u9700\u6c42\uff1a\u539f\u578b\u7ee7\u627f\u7b80\u5355\u9ad8\u6548\uff0c\u9002\u5408\u7b80\u5355\u60c5\u51b5\uff1b\u6784\u9020\u51fd\u6570\u7ee7\u627f\u53ef\u7ee7\u627f\u5c5e\u6027\u548c\u65b9\u6cd5\uff0c\u5e76\u652f\u6301\u591a\u91cd\u7ee7\u627f\uff0c\u9002\u5408\u590d\u6742\u573a\u666f\u3002 JavaScript \u7ee7\u627f \u5728 JavaScript \u4e2d\uff0c\u5b9e\u73b0\u7ee7\u627f\u6709\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\uff1a 1. \u539f\u578b\u7ee7\u627f \u539f\u7406\uff1a\u521b\u5efa\u4e00\u4e2a\u65b0\u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61\u7684\u539f\u578b\u6307\u5411\u7236\u5bf9\u8c61\u7684\u539f\u578b\uff0c\u4ece\u800c\u8bbf\u95ee\u7236\u5bf9\u8c61\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u3002 \u8bed\u6cd5\uff1a const child = Object.create(parent); \u767b\u5f55\u540e\u590d\u5236 2. \u6784\u9020\u51fd\u6570\u7ee7\u627f \u539f\u7406\uff1a\u5b50\u6784\u9020\u51fd\u6570\u8c03\u7528\u7236\u6784\u9020\u51fd\u6570\uff0c\u5c06\u7236\u6784\u9020\u51fd\u6570\u4e2d\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u590d\u5236\u5230\u5b50\u5bf9\u8c61\u4e2d\u3002 \u8bed\u6cd5\uff1a function Child(args) { Parent.call(this, args); \/\/ \u5b50\u7c7b\u7279\u6709\u7684\u5c5e\u6027\u548c\u65b9\u6cd5 } Child.prototype = Object.create(Parent.prototype); \u767b\u5f55\u540e\u590d\u5236 \u5bf9\u6bd4 ** \u7279\u5f81 \u539f\u578b\u7ee7\u627f \u6784\u9020\u51fd\u6570\u7ee7\u627f ** \u7b80\u5355\u6027 \u66f4\u7b80\u5355 \u66f4\u590d\u6742 \u6548\u7387 \u66f4\u9ad8\u6548 \u521b\u5efa\u65b0\u51fd\u6570\uff0c\u5f00\u9500\u8f83\u5927 \u7ee7\u627f\u7c7b\u578b \u4ec5\u7ee7\u627f\u539f\u578b \u7ee7\u627f\u5c5e\u6027\u548c\u65b9\u6cd5 \u591a\u91cd\u7ee7\u627f \u4e0d\u652f\u6301 \u652f\u6301 \u9009\u62e9\u54ea\u79cd\u7ee7\u627f\u65b9\u5f0f \u9009\u62e9\u7ee7\u627f\u65b9\u5f0f\u53d6\u51b3\u4e8e\u7279\u5b9a\u7684\u9700\u6c42\uff1a \u5bf9\u4e8e\u7b80\u5355\u7684\u60c5\u51b5\uff0c\u4f7f\u7528\u539f\u578b\u7ee7\u627f\u5c31\u8db3\u591f\u4e86\u3002 \u5982\u679c\u9700\u8981\u7ee7\u627f\u5c5e\u6027\u548c\u65b9\u6cd5\uff0c\u5e76\u4e14\u652f\u6301\u591a\u91cd\u7ee7\u627f\uff0c\u90a3\u4e48\u6784\u9020\u51fd\u6570\u7ee7\u627f\u662f\u66f4\u597d\u7684\u9009\u62e9\u3002 \u4ee5\u4e0a\u5c31\u662fjs 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