{"id":2326,"date":"2024-11-10T13:53:00","date_gmt":"2024-11-10T05:53:00","guid":{"rendered":"https:\/\/fwq.ai\/blog\/2326\/"},"modified":"2024-11-10T13:53:00","modified_gmt":"2024-11-10T05:53:00","slug":"%e5%a6%82%e4%bd%95%e6%8e%a7%e5%88%b6js%e5%87%bd%e6%95%b0%e4%b8%ad%e7%9a%84this%ef%bc%8c%e4%bd%bf%e5%85%b6%e5%a7%8b%e7%bb%88%e6%8c%87%e5%90%91dom%e5%85%83%e7%b4%a0%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/2326\/","title":{"rendered":"\u5982\u4f55\u63a7\u5236JS\u51fd\u6570\u4e2d\u7684this\uff0c\u4f7f\u5176\u59cb\u7ec8\u6307\u5411DOM\u5143\u7d20\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173071531171779.jpg\" class=\"aligncenter\" title=\"\u5982\u4f55\u63a7\u5236JS\u51fd\u6570\u4e2d\u7684this\uff0c\u4f7f\u5176\u59cb\u7ec8\u6307\u5411DOM\u5143\u7d20\uff1f\u63d2\u56fe\" alt=\"\u5982\u4f55\u63a7\u5236JS\u51fd\u6570\u4e2d\u7684this\uff0c\u4f7f\u5176\u59cb\u7ec8\u6307\u5411DOM\u5143\u7d20\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>this\u5728js\u51fd\u6570\u4e2d\u7684\u7075\u6d3b\u63a7\u5236<\/strong><\/p>\n<p>\u5728javascript\u51fd\u6570\u4e2d\uff0cthis\u5173\u952e\u5b57\u6307\u5411\u51fd\u6570\u5185\u90e8\u7684\u6267\u884c\u4e0a\u4e0b\u6587\u3002\u5728\u4e0d\u540c\u7684\u60c5\u51b5\u4e0b\uff0cthis\u53ef\u4ee5\u52a8\u6001\u5730\u6307\u5411\u5143\u7d20dom\u6216\u51fd\u6570\u672c\u8eab\u3002\u8fd9\u53ef\u80fd\u4f1a\u5e26\u6765\u4e00\u4e9b\u6df7\u4e71\uff0c \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e \u043a\u043e\u0433\u0434\u0430 \u0432\u044b \u0445\u043e\u0442\u0438\u0442\u0435 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0438\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440 \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u0430, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0432\u044b\u0437\u0432\u0430\u043b \u0444\u0443\u043d\u043a\u0446\u0438\u044e.<\/p>\n<p><strong>\u95ee\u9898\uff1a<\/strong><\/p>\n<p>\u5982\u4f55\u5728js\u51fd\u6570\u4e2d\u63a7\u5236this\uff0c\u4ee5\u4fbf\u5b83\u59cb\u7ec8\u6307\u5411\u5143\u7d20dom\uff0c\u800c\u4e0d\u662f\u51fd\u6570\u672c\u8eab\uff1f<\/p>\n<p><strong>\u7b54\u6848\uff1a<\/strong><\/p>\n<p>\u8981\u63a7\u5236this\u6307\u5411\u5143\u7d20dom\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6280\u5de7\uff1a<\/p>\n<p><strong>1. \u4f20\u5165\u4e8b\u4ef6\u6e90<\/strong><\/p>\n<p>\u8c03\u7528\u51fd\u6570\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e8b\u4ef6\u6e90\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>function f(ele) {\n  console.log($(ele).attr('id'));\n}\n\nf(this); 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