{"id":5098,"date":"2022-02-21T23:23:01","date_gmt":"2022-02-21T15:23:01","guid":{"rendered":"http:\/\/123.57.164.21\/?p=5098"},"modified":"2022-02-21T23:23:01","modified_gmt":"2022-02-21T15:23:01","slug":"javascript-%e4%b8%96%e7%95%8c%e4%b8%87%e7%89%a9%e8%af%9e%e7%94%9f%e8%ae%b0","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=5098","title":{"rendered":"JavaScript \u4e16\u754c\u4e07\u7269\u8bde\u751f\u8bb0"},"content":{"rendered":"\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-39-1024x720.png\" alt=\"\" class=\"wp-image-5099\" width=\"502\" height=\"352\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-39-1024x720.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-39-300x211.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-39-768x540.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-39-830x584.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-39-230x162.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-39-350x246.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-39-480x338.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-39.png 1456w\" sizes=\"(max-width: 502px) 100vw, 502px\" \/><\/figure><\/div>\n\n\n\n<p>\u8f6c\u8f7d\uff1ahttps:\/\/zhuanlan.zhihu.com\/p\/22989691<\/p>\n\n\n\n<p><strong>\u4e00. \u65e0\u4e2d\u751f\u6709<\/strong><\/p>\n\n\n\n<p>\u8d77\u521d\uff0c\u4ec0\u4e48\u90fd\u6ca1\u6709\u3002<\/p>\n\n\n\n<p>\u9020\u7269\u4e3b\u8bf4\uff1a\u6ca1\u6709\u4e1c\u897f\u672c\u8eab\u4e5f\u662f\u4e00\u79cd\u4e1c\u897f\u554a\uff0c\u4e8e\u662f\u5c31\u6709\u4e86null\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-40.png\" alt=\"\" class=\"wp-image-5100\" width=\"152\" height=\"79\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-40.png 242w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-40-230x120.png 230w\" sizes=\"(max-width: 152px) 100vw, 152px\" \/><\/figure><\/div>\n\n\n\n<p>\u73b0\u5728\u6211\u4eec\u8981\u9020\u70b9\u513f\u4e1c\u897f\u51fa\u6765\u3002\u4f46\u662f\u6ca1\u6709\u539f\u6599\u600e\u4e48\u529e\uff1f<br>\u6709\u4e00\u4e2a\u58f0\u97f3\u8bf4\uff1a\u4e0d\u662f\u6709null\u561b\uff1f<br>\u53e6\u4e00\u4e2a\u58f0\u97f3\u8bf4\uff1a\u53ef\u662fnull\u4ee3\u8868\u65e0\u554a\u3002<br>\u9020\u7269\u4e3b\u8bf4\uff1a\u90a3\u5c31\u65e0\u4e2d\u751f\u6709\u5427\uff01<br>\u4e8e\u662f\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-41.png\" alt=\"\" class=\"wp-image-5101\" width=\"113\" height=\"181\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-41.png 240w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-41-188x300.png 188w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-41-230x368.png 230w\" sizes=\"(max-width: 113px) 100vw, 113px\" \/><\/figure><\/div>\n\n\n\n<p>JavaScript\u4e2d\u76841\u53f7\u5bf9\u8c61\u4ea7\u751f\u4e86\uff0c\u4e0d\u59a8\u628a\u5b83\u53eb\u505aNo. 1\u3002<br>\u8fd9\u4e2aNo. 1\u5bf9\u8c61\u53ef\u4e0d\u5f97\u4e86\uff0c\u5b83\u662f\u771f\u6b63\u7684\u4e07\u7269\u59cb\u7956\u3002\u5b83\u62e5\u6709\u7684\u6027\u8d28\uff0c\u662f\u6240\u6709\u7684\u5bf9\u8c61\u90fd\u6709\u7684\u3002<br>__proto__\u662f\u4ec0\u4e48\u5462\uff1f\u662f\u201c\u751f\u201d\u7684\u610f\u601d\uff0c\u6216\u8005\u53eb\u505a<strong>\u7ee7\u627f<\/strong>\u3002<\/p>\n\n\n\n<p><strong>\u4e8c. \u5236\u9020\u5bf9\u8c61\u7684\u673a\u5668<\/strong><\/p>\n\n\n\n<p>\u65e2\u7136\u5df2\u7ecf\u6709\u4e86\u4e00\u4e2a\u5bf9\u8c61\uff0c\u5269\u4e0b\u5c31\u597d\u529e\u4e86\uff0c\u56e0\u4e3a\u4e00\u751f\u4e8c\uff0c\u4e8c\u751f\u4e09\uff0c\u4e09\u751f\u4e07\u7269\u561b\u3002<br>\u4e0d\u8fc7\u9020\u7269\u4e3b\u5f88\u61d2\uff0c\u4ed6\u4e0d\u60f3\u4e00\u4e2a\u4e00\u4e2a\u5730\u4eb2\u624b\u5236\u9020\u5bf9\u8c61\u3002\u4e8e\u662f\u4ed6\u505a\u4e86\u4e00\u53f0\u80fd\u591f\u5236\u9020\u5bf9\u8c61\u7684\u673a\u5668\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-42.png\" alt=\"\" class=\"wp-image-5102\" width=\"442\" height=\"239\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-42.png 790w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-42-300x163.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-42-768x416.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-42-230x125.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-42-350x190.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-42-480x260.png 480w\" sizes=\"(max-width: 442px) 100vw, 442px\" \/><\/figure><\/div>\n\n\n\n<p>\u4ed6\u7ed9\u8fd9\u53f0\u673a\u5668\u8d77\u4e86\u4e00\u4e2a\u540d\u5b57\uff1a<strong>Object<\/strong>\u3002<br>\u8fd9\u53f0\u673a\u5668\u5e76\u4e0d\u80fd\u51ed\u7a7a\u9020\u51fa\u5bf9\u8c61\uff0c\u5b83\u9700\u8981\u4e00\u4e2a\u6a21\u677f\u5bf9\u8c61\uff0c\u6309\u7167\u8fd9\u4e2a\u6a21\u677f\u5bf9\u8c61\u6765\u5236\u9020\u5bf9\u8c61\u3002\u5f88\u81ea\u7136\u7684\uff0c\u5b83\u628a\u76ee\u524d\u4ec5\u6709\u7684No. 1\u5bf9\u8c61\u4f5c\u4e3a\u6a21\u677f\u3002\u56fe\u4e2d\u7684prototype\u5c31\u4ee3\u8868\u673a\u5668\u7684<strong>\u6a21\u677f\u5bf9\u8c61<\/strong>\u3002<\/p>\n\n\n\n<p>\u673a\u5668\u5982\u4f55\u542f\u52a8\u5462\uff1f\u901a\u8fc7<strong>new<\/strong>\u547d\u4ee4\u3002\u4f60\u5bf9\u7740\u673a\u5668\u558a\u4e00\u58f0\uff1a\u201cnew\uff01\u201d\uff0c\u5bf9\u8c61\u5c31\u9020\u51fa\u6765\u4e86\u3002<\/p>\n\n\n\n<p>\u673a\u5668\u7684\u4ea7\u751f\uff0c\u5b9e\u73b0\u4e86\u5bf9\u8c61\u7684\u6279\u91cf\u5316\u81ea\u52a8\u5316\u751f\u4ea7\uff0c\u89e3\u653e\u4e86\u9020\u7269\u4e3b\u7684\u53cc\u624b\u3002\u4e8e\u662f\u9020\u7269\u4e3b\u5fd9\u522b\u7684\u53bb\u4e86\u3002<br>\u5982\u679c\u673a\u5668\u53ea\u662f\u6309\u7167\u6a21\u677f\u7684\u6837\u5b50\uff0c\u673a\u68b0\u5730\u590d\u5236\u51fa\u4e00\u6a21\u4e00\u6837\u7684\u5bf9\u8c61\uff0c\u90a3\u5c31\u592a\u7b28\u4e86\u3002<br>\u4eba\u7c7b\u7684\u540e\u4ee3\u5728\u7ee7\u627f\u4e86\u7236\u8f88\u7684\u6027\u72b6\u7684\u57fa\u7840\u4e0a\uff0c\u53ef\u4ee5\u4ea7\u751f\u7236\u8f88\u6ca1\u6709\u7684\u6027\u72b6\u3002\u540c\u6837\u5730\uff0c\u673a\u5668\u5728\u5236\u9020\u5bf9\u8c61\u65f6\uff0c\u9664\u4e86\u7ee7\u627f\u6a21\u677f\u5bf9\u8c61\u7684\u5c5e\u6027\u5916\uff0c\u8fd8\u53ef\u4ee5\u6dfb\u52a0\u65b0\u7684\u5c5e\u6027\u3002\u8fd9\u4f7f\u5f97JavaScript\u4e16\u754c\u8d8a\u6765\u8d8a\u591a\u6837\u5316\u3002<\/p>\n\n\n\n<p>\u6bd4\u5982\u8bf4\uff0c\u6709\u4e00\u5929Object\u673a\u5668\u5236\u9020\u4e00\u4e2a\u5bf9\u8c61\uff0c\u5b83\u6709\u4e00\u4e2a\u7279\u6b8a\u7684\u5c5e\u6027\uff0c\u53eb\u505aflag\uff0c\u5c5e\u6027\u503c\u662f10\u3002\u7528\u56fe\u5f62\u8868\u793a\u662f\u8fd9\u6837\u7684\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-43.png\" alt=\"\" class=\"wp-image-5103\" width=\"408\" height=\"209\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-43.png 770w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-43-300x154.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-43-768x393.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-43-230x118.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-43-350x179.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-43-480x246.png 480w\" sizes=\"(max-width: 408px) 100vw, 408px\" \/><\/figure><\/div>\n\n\n\n<p>\u5199\u6210\u4ee3\u7801\u5c31\u662f\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">var obj = new Object({ flag: 10 });\n<\/pre>\n\n\n\n<p>\u8f70\u8f70\u70c8\u70c8\u7684\u9020\u7269\u8fd0\u52a8\u5f00\u59cb\u4e86\u2026\u2026<\/p>\n\n\n\n<p><strong>\u4e09. \u66f4\u591a\u5236\u9020\u5bf9\u8c61\u7684\u673a\u5668<\/strong><\/p>\n\n\n\n<p>\u4e00\u5929\u5929\u8fc7\u53bb\u4e86\uff0c\u9020\u7269\u4e3b\u6765\u89c6\u5bdf\u5de5\u4f5c\u3002\u770b\u5230Object\u5236\u9020\u51fa\u4e86\u597d\u591a\u597d\u591a\u5bf9\u8c61\uff0c\u4ed6\u975e\u5e38\u9ad8\u5174\u3002<br>\u540c\u65f6\u4ed6\u8fd8\u53d1\u73b0\uff1a\u6839\u636e\u201c\u7269\u4ee5\u7c7b\u805a\u201d\u7684\u539f\u5219\uff0c\u8fd9\u4e9b\u5bf9\u8c61\u53ef\u4ee5\u5206\u6210\u5f88\u591a<strong>\u7c7b<\/strong>\u3002\u806a\u660e\u7684\u9020\u7269\u4e3b\u60f3\uff0c\u6211\u4f55\u4e0d\u591a\u9020\u51e0\u53f0\u673a\u5668\uff0c\u8ba9\u6bcf\u4e00\u53f0\u673a\u5668\u4e13\u95e8\u8d1f\u8d23\u5236\u9020\u67d0\u4e00\u7c7b\u5bf9\u8c61\u5462\uff1f\u4e8e\u662f\uff0c\u4ed6\u52a8\u624b\u9020\u51fa\u4e86\u51e0\u53f0\u673a\u5668\u5e76\u7ed9\u5b83\u4eec\u8d77\u4e86\u540d\u5b57\u3002\u5b83\u4eec\u5206\u522b\u662f\uff1a<\/p>\n\n\n\n<p><strong>String<\/strong>\uff1a\u7528\u6765\u5236\u9020\u8868\u793a\u4e00\u6bb5\u6587\u672c\u7684\u5bf9\u8c61\u3002<br><strong>Number<\/strong>\uff1a\u7528\u6765\u5236\u9020\u8868\u793a\u4e00\u4e2a\u6570\u5b57\u7684\u5bf9\u8c61\u3002<br><strong>Boolean<\/strong>\uff1a\u7528\u6765\u5236\u9020\u8868\u793a\u662f\u4e0e\u975e\u7684\u5bf9\u8c61\u3002<br><strong>Array<\/strong>\uff1a\u7528\u6765\u5236\u9020\u6709\u5e8f\u961f\u5217\u5bf9\u8c61\u3002<br><strong>Date<\/strong>\uff1a\u7528\u6765\u5236\u9020\u8868\u793a\u4e00\u4e2a\u65e5\u671f\u7684\u5bf9\u8c61\u3002<br><strong>Error<\/strong>\uff1a\u7528\u6765\u5236\u9020\u8868\u793a\u4e00\u4e2a\u9519\u8bef\u7684\u5bf9\u8c61\u3002<br>\u2026\u2026<\/p>\n\n\n\n<p>\u591a\u53f0\u673a\u5668\u9f50\u5f00\u52a8\uff0c\u5404\u53f8\u5176\u8d23\uff0c\u9020\u7269\u8fd0\u52a8\u8fdb\u5165\u4e86\u4e00\u4e2a\u65b0\u7684\u9636\u6bb5\u2026\u2026<\/p>\n\n\n\n<p>\u9020\u7269\u4e3b\u53c8\u5f00\u59cb\u601d\u8003\u4e86\uff1a\u867d\u7136\u673a\u5668\u662f\u7528\u6765\u5236\u9020\u5bf9\u8c61\u7684\uff0c\u4f46\u662f\u673a\u5668\u672c\u8eab\u5b9e\u9645\u4e0a\u4e5f\u662f\u4e00\u79cd\u7279\u6b8a\u5bf9\u8c61\u554a\u3002\u73b0\u5728\u6709\u4e86\u8fd9\u4e48\u591a\u673a\u5668\uff0c\u6211\u5f97\u597d\u597d\u603b\u7ed3\u4e00\u4e0b\u5b83\u4eec\u7684\u5171\u540c\u7279\u5f81\uff0c\u628a\u5b83\u4eec\u4e5f\u7eb3\u5165\u5bf9\u8c61\u4f53\u7cfb\u3002<\/p>\n\n\n\n<p>\u4e8e\u662f\uff0c\u9020\u7269\u4e3b\u57fa\u4e8eNo. 1\u5bf9\u8c61\uff0c\u9020\u51fa\u4e86\u4e00\u4e2aNo. 2\u5bf9\u8c61\uff0c\u7528\u5b83\u6765\u8868\u793a\u6240\u6709\u673a\u5668\u7684\u5171\u540c\u7279\u5f81\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u628a\u5b83\u4f5c\u4e3a\u6240\u6709\u673a\u5668\u7684\u539f\u578b\u5bf9\u8c61\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-44.png\" alt=\"\" class=\"wp-image-5104\" width=\"422\" height=\"431\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-44.png 934w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-44-293x300.png 293w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-44-768x786.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-44-830x850.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-44-230x235.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-44-350x358.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-44-480x491.png 480w\" sizes=\"(max-width: 422px) 100vw, 422px\" \/><\/figure><\/div>\n\n\n\n<p>\uff08\u6ce8\uff1a__proto__\u5199\u8d77\u6765\u592a\u9ebb\u70e6\u4e86\uff0c\u540e\u9762\u6211\u4eec\u7528[p]\u6765\u4ee3\u66ff\uff09<\/p>\n\n\n\n<p>\u5f53\u7136\u4e86\uff0c\u548cObject\u4e00\u6837\uff0c\u8fd9\u4e9b\u673a\u5668\u4e5f\u9700\u8981\u5404\u81ea\u6709\u4e00\u4e2a\u6a21\u677f\u5bf9\u8c61\uff0c\u4e5f\u5c31\u662f\u5b83\u4eec\u7684prototype\u5c5e\u6027\u6307\u5411\u7684\u90a3\u4e2a\u5bf9\u8c61\u3002\u663e\u7136\u5b83\u4eec\u7684\u6a21\u677f\u5bf9\u8c61\u5e94\u8be5\u662f\u7ee7\u627f\u81eaNo. 1\u5bf9\u8c61\u7684\uff0c\u5373<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-45-1024x788.png\" alt=\"\" class=\"wp-image-5105\" width=\"501\" height=\"385\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-45-1024x788.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-45-300x231.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-45-768x591.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-45-830x639.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-45-230x177.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-45-350x269.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-45-480x369.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-45.png 1370w\" sizes=\"(max-width: 501px) 100vw, 501px\" \/><\/figure><\/div>\n\n\n\n<p>\u8fd9\u5f20\u56fe\u663e\u793a\u4e86JavaScript\u4e16\u754c\u4e2d\u90a3\u4e9b\u6700\u57fa\u672c\u7684\u673a\u5668\u672c\u8eab\u7684\u539f\u578b\u94fe\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u6a21\u677f\u5bf9\u8c61\u7684\u539f\u578b\u94fe\u3002\u4e0d\u8fc7\u770b\u8d77\u6765\u592a\u590d\u6742\u4e86\uff0c\u6240\u4ee5\u540e\u9762\u6211\u4eec\u5c31\u4e0d\u518d\u628a\u5b83\u4eec\u5b8c\u6574\u5730\u753b\u51fa\u6765\u4e86\u3002<\/p>\n\n\n\n<p><strong>\u56db. \u5236\u9020\u673a\u5668\u7684\u673a\u5668<\/strong><\/p>\n\n\n\n<p>\u9020\u7269\u4e3b\u9ad8\u5174\u5730\u60f3\uff1a\u8fd9\u4e0b\u53ef\u597d\u4e86\uff0c\u6211\u9020\u51fa\u4e86Object\u673a\u5668\uff0c\u5b9e\u73b0\u4e86\u5bf9\u8c61\u5236\u9020\u7684\u81ea\u52a8\u5316\u3002\u7136\u540e\u53c8\u9020\u51fa\u4e86String\u3001Number\u7b49\u673a\u5668\uff0c\u5b9e\u73b0\u4e86\u7279\u5b9a\u7c7b\u522b\u7684\u5bf9\u8c61\u5236\u9020\u7684\u81ea\u52a8\u5316\u3002\u4f46\u662f\uff0c\u4e3a\u5565\u603b\u611f\u89c9\u4f3c\u4e4e\u8fd8\u7f3a\u70b9\u4ec0\u4e48\u5462\uff1f<\/p>\n\n\n\n<p>\u5bf9\u5566\uff0c\u8fd8\u7f3a\u5c11\u4e00\u53f0<strong>\u5236\u9020\u673a\u5668\u7684\u673a\u5668<\/strong>\u554a\uff01<\/p>\n\n\n\n<p>\u5f88\u5feb\uff0c\u4e07\u80fd\u7684\u9020\u7269\u4e3b\u5c31\u628a\u5b83\u9020\u4e86\u51fa\u6765\uff0c\u5e76\u628a\u5b83\u547d\u540d\u4e3a<strong>Function<\/strong>\u3002\u6709\u4e86Function\u673a\u5668\u540e\uff0c\u5c31\u53ef\u4ee5\u5b9e\u73b0\u81ea\u52a8\u5316\u5730\u5236\u9020\u673a\u5668\u4e86\u3002<\/p>\n\n\n\n<p>\u8ba9\u6211\u4eec\u6765\u89c2\u5bdf\u4e00\u4e0bFunction\uff1a<br>\u9996\u5148\uff0cFunction\u662f\u4e00\u53f0\u673a\u5668\uff0c\u6240\u4ee5\u5b83\u7684\u539f\u578b\u5bf9\u8c61\u4e5f\u662fNo. 2\u5bf9\u8c61\u3002<br>\u5176\u6b21\uff0cFunction\u53c8\u662f\u4e00\u53f0\u5236\u9020\u673a\u5668\u7684\u673a\u5668\uff0c\u6240\u4ee5\u5b83\u7684\u6a21\u677f\u5bf9\u8c61\u4e5f\u662fNo. 2\u5bf9\u8c61\u3002<br>\u6240\u4ee5\u6211\u4eec\u5f97\u5230\u4e86Function\u7684\u4e00\u4e2a\u975e\u5e38\u7279\u522b\u7684\u6027\u8d28\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">Function.__proto__ === Function.prototype\n<\/pre>\n\n\n\n<p>\u54c7\uff0c\u592a\u5947\u5999\u4e86\uff01<\/p>\n\n\n\n<p>\u4e0d\u8981\u5947\u602a\uff0c\u8fd9\u4e2a\u6027\u8d28\u4e0d\u8fc7\u662f\u201dFunction\u662f\u4e00\u53f0\u5236\u9020\u673a\u5668\u7684\u673a\u5668\u201c\u8fd9\u4e2a\u4e8b\u5b9e\u7684\u5fc5\u7136\u7ed3\u679c\u3002<\/p>\n\n\n\n<p>\u4e8e\u662fJavaScript\u7684\u4e16\u754c\u7684\u53d8\u6210\u4e86\u4e0b\u9762\u7684\u6837\u5b50\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-46-952x1024.png\" alt=\"\" class=\"wp-image-5106\" width=\"432\" height=\"464\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-46-952x1024.png 952w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-46-279x300.png 279w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-46-768x826.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-46-830x893.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-46-230x247.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-46-350x377.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-46-480x516.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-46.png 974w\" sizes=\"(max-width: 432px) 100vw, 432px\" \/><\/figure><\/div>\n\n\n\n<p>\u4ece\u8fd9\u5f20\u56fe\u4e2d\uff0c\u6211\u4eec\u53d1\u73b0\uff1a\u6240\u6709\u7684\u51fd\u6570(\u5305\u62ecFunction)\u7684\u539f\u578b\u90fd\u662fNo. 2\u5bf9\u8c61\uff0c\u800c\u540c\u65f6Function.prototype\u4e5f\u662fNo. 2\u5bf9\u8c61\u3002\u8fd9\u8bf4\u660e\u4e86\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>\u4ece\u903b\u8f91\u4e0a\uff0c\u6211\u4eec\u53ef\u4ee5\u8ba4\u4e3a\u6240\u6709\u673a\u5668(\u5305\u62ecFunction\u81ea\u5df1)\u90fd\u662f\u7531Function\u5236\u9020\u51fa\u6765\u7684\u3002<\/p><\/blockquote>\n\n\n\n<p>\u540c\u65f6\uff0c\u5982\u679c\u518d\u4ed4\u7ec6\u77a7\u77a7\uff0c\u4f60\u4f1a\u53d1\u73b0\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>Object\u4f5c\u4e3a\u4e00\u4e2a\u673a\u5668\u53ef\u4ee5\u770b\u505a\u662f\u6709\u7531Function\u5236\u9020\u51fa\u6765\u7684\uff0c\u800cFunction\u4f5c\u4e3a\u4e00\u4e2a\u5bf9\u8c61\u53ef\u4ee5\u770b\u505a\u662f\u7531Object\u5236\u9020\u51fa\u6765\u7684\u3002<\/p><\/blockquote>\n\n\n\n<p>\u8fd9\u5c31\u662fJavaScript\u4e16\u754c\u7684\u201c\u9e21\u751f\u86cb\uff0c\u86cb\u751f\u9e21\u201d\u95ee\u9898\u3002\u90a3\u4e48\u5230\u5e95\u662f\u8c01\u751f\u4e86\u8c01\u5462\uff1fWhatever\uff01<\/p>\n\n\n\n<p><strong>\u4e94. \u8ba9\u4e16\u754c\u52a8\u8d77\u6765<\/strong><\/p>\n\n\n\n<p>\u5c31\u50cf\u524d\u9762\u6240\u8bf4\uff0c\u673a\u5668\u7528\u6765\u5236\u9020\u67d0\u4e00\u7c7b\u5bf9\u8c61\u3002\u6b63\u56e0\u5982\u6b64\uff0c\u673a\u5668\u53ef\u4ee5\u4f5c\u4e3a\u8fd9\u7c7b\u5bf9\u8c61\u7684\u6807\u5fd7\uff0c\u5373\u9762\u5411\u5bf9\u8c61\u8bed\u8a00\u4e2d\u7c7b(class)\u7684\u6982\u5ff5\u3002\u6240\u4ee5\u673a\u5668\u53c8\u88ab\u79f0\u4e3a<strong>\u6784\u9020\u51fd\u6570<\/strong>\u3002\u5728ES6\u5f15\u5165class\u5173\u952e\u5b57\u4e4b\u524d\uff0c\u6211\u4eec\u5e38\u5e38\u628a\u6784\u9020\u51fd\u6570\u53eb\u505a\u7c7b\u3002<\/p>\n\n\n\n<p>\u7136\u800c\uff0c\u9664\u4e86\u4f5c\u4e3a\u6784\u9020\u51fd\u6570\u6765\u5236\u9020\u5bf9\u8c61\u5916\uff0c\u51fd\u6570\u901a\u5e38\u8fd8\u6709\u53e6\u4e00\u4e2a\u529f\u80fd\uff1a<strong>\u505a\u4e00\u4ef6\u4e8b\u60c5<\/strong>\u3002\u6b63\u662f\u6709\u4e86\u8fd9\u4e2a\u529f\u80fd\uff0cJavaScript\u7684\u4e16\u754c\u624d\u7531\u9759\u53d8\u52a8\uff0c\u53d8\u5f97\u751f\u673a\u52c3\u52c3\u3002<\/p>\n\n\n\n<p>\u6bd4\u5982\u8bf4\uff0c\u6211\u4eec\u73b0\u5728\u7528Function\u673a\u5668\u5236\u9020\u4e86\u9e1f\u7c7b(\u5373\u7528\u6765\u9020\u9e1f\u7684\u673a\u5668)\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function Bird(color) {\n    this.color = color;\n}\n<\/pre>\n\n\n\n<p>\u7136\u540e\uff0c\u5bf9\u7740\u9020\u9e1f\u673a\u8bf4\uff1a\u201cnew\uff01\u201d\uff0c\u4e8e\u662f\u9020\u9e1f\u673a\u53d1\u52a8\u8d77\u6765\uff0c\u5236\u9020\u4e00\u4e2a\u7ea2\u8272\u7684\u9e1f\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">var redBird = new Bird('#FF0000');\n<\/pre>\n\n\n\n<p>\u5982\u679c\u73b0\u5728\u6211\u4eec\u60f3\u8ba9\u9e1f\u98de\u8d77\u6765\uff0c\u8be5\u600e\u4e48\u529e\u5462\uff1f\u6211\u4eec\u9700\u8981\u518d\u6b21\u7528Function\u5236\u9020\u51fa\u4e00\u53f0\u673a\u5668\uff0c\u4e0d\u8fc7\u8fd9\u53f0\u673a\u5668\u4e0d\u662f\u7528\u6765\u5236\u9020\u5bf9\u8c61\u7684\uff0c\u800c\u662f\u7528\u6765\u505a\u4e8b\u513f\u7684\uff0c\u5373\u201c\u8ba9\u9e1f\u98de\u8d77\u6765\u201d\u8fd9\u4ef6\u4e8b\u60c5\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u8fd9\u662f\u4e00\u53f0\u901a\u8fc7\u6643\u52a8\u9e1f\u7684\u7fc5\u8180\uff0c\u8ba9\u9e1f\u98de\u8d77\u6765\u7684\u7b80\u964b\u7684\u673a\u5668\u3002\nfunction makeBirdFly(bird) {\n    shakeBirdWing(bird);\n}<\/pre>\n\n\n\n<p>\u6211\u4eec\u77e5\u9053\uff0c\u8ba9\u4e00\u53f0\u5236\u9020\u5bf9\u8c61\u7684\u673a\u5668\u53d1\u52a8\uff0c\u53ea\u9700\u8981\u5bf9\u5b83\u558a\u201cnew\u201d\u5373\u53ef\uff1b\u90a3\u4e48\u600e\u6837\u8ba9\u4e00\u53f0\u505a\u4e8b\u60c5\u7684\u673a\u5668\u53d1\u52a8\u5462\uff1f\u66f4\u7b80\u5355\uff0c\u5bf9\u5b83\u54b3\u55fd\u4e00\u58f0\u5c31\u884c\u4e86\u3002\u54b3\u54b3\u54b3\uff0c<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">makeBirdFly(redBird);\n<\/pre>\n\n\n\n<p>\u4e8e\u662f\u7ea2\u9e1f\u98de\u4e86\u8d77\u6765\uff0c\u4e16\u754c\u5145\u6ee1\u4e86\u751f\u673a\u3002<\/p>\n\n\n\n<p>\u4ece\u4e0a\u9762\u7684Bird\u548cmakeBirdFly\u7684\u5b9a\u4e49\u53ef\u4ee5\u770b\u51fa\uff1a\u5b9e\u9645\u4e0a\uff0c\u5236\u9020\u5bf9\u8c61\u7684\u673a\u5668\u548c\u505a\u4e8b\u60c5\u7684\u673a\u5668\u6ca1\u4ec0\u4e48\u660e\u663e\u533a\u522b\uff0c\u4e0d\u540c\u7684\u53ea\u662f\u5b83\u4eec\u7684\u4f7f\u7528\u65b9\u5f0f\u3002\u5728\u4e24\u79cd\u60c5\u51b5\u4e0b\uff0c\u5b83\u4eec\u5206\u522b\u88ab\u53eb\u505a<strong>\u6784\u9020\u51fd\u6570<\/strong>\u548c<strong>\u666e\u901a\u51fd\u6570<\/strong>\u3002<\/p>\n\n\n\n<p>\u8bf4\u660e1\uff1afunction xxx\u8bed\u6cd5\u53ef\u4ee5\u770b\u6210new Function\u7684\u7b49\u4ef7\u5f62\u5f0f\u3002<br>\u8bf4\u660e2\uff1a\u7528\u6237\u81ea\u5b9a\u4e49\u7684\u51fd\u6570\u901a\u5e38\u65e2\u53ef\u4ee5\u4f5c\u4e3a\u666e\u901a\u51fd\u6570\u4f7f\u7528\uff0c\u53c8\u53ef\u4ee5\u4f5c\u4e3a\u6784\u9020\u51fd\u6570\u6765\u5236\u9020\u5bf9\u8c61\u3002ES6\u65b0\u589e\u7684class\u8bed\u6cd5\u5b9a\u4e49\u7684\u51fd\u6570\u53ea\u80fd\u4f5c\u4e3a\u6784\u9020\u51fd\u6570\uff0cES6\u65b0\u589e\u7684=>\u8bed\u6cd5\u5b9a\u4e49\u7684\u7bad\u5934\u51fd\u6570\u53ea\u80fd\u4f5c\u4e3a\u666e\u901a\u51fd\u6570\u3002<\/p>\n\n\n\n<p><strong>\u516d. \u8ba9\u4e16\u754c\u7acb\u4f53\u8d77\u6765<\/strong><\/p>\n\n\n\n<p>\u9020\u7269\u4e3b\u5bf9\u76ee\u524d\u7684\u4e16\u754c\u8fd8\u662f\u4e0d\u592a\u6ee1\u610f\uff0c\u56e0\u4e3a\u51e0\u4e4e\u6240\u6709\u7684\u673a\u5668\u7684\u6a21\u677f\u5bf9\u8c61\u90fd\u662fNo. 2\uff0c\u8fd9\u4f7f\u5f97JavaScript\u4e16\u754c\u770b\u8d77\u6765\u6709\u70b9\u6241\u3002<\/p>\n\n\n\n<p>\u4e8e\u662f\u9020\u7269\u4e3b\u518d\u6b21\u7814\u7a76\u4e16\u754c\u4e07\u7269\u7684\u5206\u7c7b\u95ee\u9898\u3002\u4ed6\u53d1\u73b0\u6709\u4e9b\u5bf9\u8c61\u4f1a\u52a8\u3001\u8fd8\u4f1a\u5403\u4e1c\u897f\uff0c\u4e8e\u662f\u628a\u5b83\u4eec\u53eb\u505a\u52a8\u7269\uff0c\u7136\u540e\u9020\u4e86\u4e00\u53f0Animal\u673a\u5668\u6765\u5236\u9020\u5b83\u4eec\u3002\u4ed6\u8fdb\u4e00\u6b65\u53d1\u73b0\uff0c\u5373\u4f7f\u90fd\u662f\u52a8\u7269\uff0c\u4e5f\u8fd8\u662f\u53ef\u4ee5\u8fdb\u4e00\u6b65\u5206\u7c7b\uff0c\u6bd4\u5982\u6709\u4e9b\u4f1a\u98de\u3001\u6709\u4e9b\u4f1a\u6e38\uff0c\u4ed6\u5206\u522b\u628a\u5b83\u4eec\u53eb\u505a\u9e1f\u7c7b\u3001\u9c7c\u7c7b\u3002\u4e8e\u662f\u4ed6\u60f3\uff0c\u6211\u4f55\u4e0d\u5355\u72ec\u9020\u51e0\u53f0\u673a\u5668\uff0c\u4e13\u95e8\u7528\u6765\u5236\u9020\u67d0\u4e00\u7c7b\u52a8\u7269\u5462\u3002\u4e8e\u662f\u5b83\u9020\u51fa\u4e86Bird\u3001Fish\u7b49\u673a\u5668\u3002<\/p>\n\n\n\n<p>\u63a5\u4e0b\u6765\uff0c\u5728\u9009\u62e9\u8fd9\u4e9b\u673a\u5668\u7684\u6a21\u677f\u5bf9\u8c61\u65f6\u78b0\u5230\u4e00\u4e2a\u95ee\u9898\uff1a\u5982\u679c\u8fd8\u50cf\u4e4b\u524d\u90a3\u6837\u76f4\u63a5\u590d\u5236\u4e00\u4e2aNo. 1\u5bf9\u8c61\u4f5c\u4e3aBird\u3001Fish\u7684\u6a21\u677f\uff0c\u90a3\u4e48\u7ed3\u679c\u5c31\u662f\u8fd9\u6837\u7684\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-47.png\" alt=\"\" class=\"wp-image-5107\" width=\"459\" height=\"300\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-47.png 1002w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-47-300x196.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-47-768x501.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-47-830x542.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-47-230x150.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-47-350x228.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-47-480x313.png 480w\" sizes=\"(max-width: 459px) 100vw, 459px\" \/><\/figure><\/div>\n\n\n\n<p>\u8fd9\u6837\u53ef\u4e0d\u597d\u3002\u9996\u5148\u6ca1\u4f53\u73b0\u51fa\u9e1f\u7c7b\u3001\u9c7c\u7c7b\u8ddf\u52a8\u7269\u7684\u5173\u7cfb\uff0c\u5176\u6b21\u5b83\u4eec\u7684\u6a21\u677f\u5bf9\u8c61\u5b58\u4e86\u91cd\u590d\u7684\u4e1c\u897f\uff0c\u8fd9\u53ef\u662f\u4e00\u79cd\u6d6a\u8d39\u554a\u3002\u600e\u4e48\u529e\u5462\uff1f\u7b80\u5355\uff0c\u8ba9Bird\u548cFish\u7684\u6a21\u677f\u5bf9\u8c61\u7ee7\u627f\u81eaAnimal\u7684\u6a21\u677f\u5bf9\u8c61\u5c31\u597d\u4e86\u3002\u5c31\u662f\u8bf4<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">Bird.prototype.__proto__ === Animal.prototype\nFish.prototype.__proto__ === Animal.prototype\n<\/pre>\n\n\n\n<p>\u4e8e\u662f\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-48-1024x560.png\" alt=\"\" class=\"wp-image-5108\" width=\"518\" height=\"283\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-48-1024x560.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-48-300x164.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-48-768x420.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-48-830x454.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-48-230x126.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-48-350x192.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-48-480x263.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-48.png 1334w\" sizes=\"(max-width: 518px) 100vw, 518px\" \/><\/figure><\/div>\n\n\n\n<p>\u7528\u540c\u6837\u7684\u65b9\u6cd5\uff0c\u9020\u7269\u4e3b\u9020\u51fa\u4e86\u4e00\u4e2a\u7acb\u4f53\u5f97\u591a\u7684JavaScript\u4e16\u754c\u3002<\/p>\n\n\n\n<p>\u7136\u800c\u8fd9\u6837\u8fd8\u4e0d\u591f\u3002\u867d\u7136\u90a3\u4e9b\u7eaf\u5bf9\u8c61\u73b0\u5728\u5145\u6ee1\u4e86\u5c42\u6b21\u611f\uff0c\u4f46\u662f\u90a3\u4e9b\u673a\u5668\u5bf9\u8c61\u4e4b\u95f4\u7684\u5173\u7cfb\u8fd8\u662f\u6241\u5e73\u7684\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-49-1024x882.png\" alt=\"\" class=\"wp-image-5109\" width=\"509\" height=\"437\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-49-1024x882.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-49-300x259.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-49-830x715.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-49-230x198.png 230w\" sizes=\"(max-width: 509px) 100vw, 509px\" \/><\/figure><\/div>\n\n\n\n<p>\u90a3\u53c8\u8be5\u600e\u4e48\u529e\u5462\uff1f\u5176\u5b9e\u7528\u7c7b\u4f3c\u7684\u529e\u6cd5\u5c31\u884c\u4e86\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-50-1024x941.png\" alt=\"\" class=\"wp-image-5110\" width=\"496\" height=\"455\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-50-1024x941.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-50-300x276.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-50-768x706.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-50-830x763.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-50-230x211.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-50-350x322.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-50-480x441.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-50.png 1452w\" sizes=\"(max-width: 496px) 100vw, 496px\" \/><\/figure><\/div>\n\n\n\n<p>\u4e3a\u4e86\u66f4\u65b9\u4fbf\u5730\u505a\u5230\u8fd9\u4e00\u70b9\uff0c\u9020\u7269\u4e3b\u53d1\u660e\u4e86class\u5173\u952e\u5b57\u3002<\/p>\n\n\n\n<p><strong>\u4e03. \u4e16\u754c\u6700\u7ec8\u7684\u6837\u5b50<\/strong><\/p>\n\n\n\n<p>\u7ecf\u8fc7\u4e00\u756a\u6298\u817e\uff0cJavaScript\u4e16\u754c\u53d1\u751f\u4e86\u5927\u53d8\u5316\u3002\u53d8\u5f97\u4e30\u5bcc\u591a\u5f69\uff0c\u540c\u65f6\u53d8\u5f97\u5f88\u590d\u6742\u3002\u7528\u4e00\u5f20\u56fe\u518d\u4e5f\u6ca1\u6cd5\u753b\u51fa\u5b83\u7684\u5168\u8c8c\uff0c\u53ea\u80fd\u753b\u51fa\u51b0\u5c71\u4e00\u89d2\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-51-1024x756.png\" alt=\"\" class=\"wp-image-5111\" width=\"494\" height=\"365\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-51-1024x756.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-51-300x222.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-51-768x567.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-51-830x613.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-51-230x170.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-51-350x259.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-51-480x355.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-51.png 1378w\" sizes=\"(max-width: 494px) 100vw, 494px\" \/><\/figure><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u8f6c\u8f7d\uff1ahttps:\/\/zhuanlan.zhihu.com\/p\/22989691 \u4e00. \u65e0\u4e2d\u751f\u6709 \u8d77\u521d\uff0c\u4ec0\u4e48\u90fd [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24],"tags":[],"_links":{"self":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/5098"}],"collection":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5098"}],"version-history":[{"count":1,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/5098\/revisions"}],"predecessor-version":[{"id":5112,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/5098\/revisions\/5112"}],"wp:attachment":[{"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5098"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5098"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5098"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}