{"id":1486,"date":"2024-11-10T10:19:57","date_gmt":"2024-11-10T02:19:57","guid":{"rendered":"https:\/\/fwq.ai\/blog\/1486\/"},"modified":"2024-11-10T10:19:57","modified_gmt":"2024-11-10T02:19:57","slug":"javascript-%e5%bc%b9%e7%aa%97%e6%97%a0%e6%b3%95%e5%bc%b9%e5%87%ba%ef%bc%9a%e4%bb%a3%e7%a0%81%e4%b8%ad%e5%a4%9a%e4%bd%99%e6%8b%ac%e5%8f%b7%e5%92%8c%e9%80%97%e5%8f%b7%e5%af%bc%e8%87%b4%e8%af%ad%e6%b3%95","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/1486\/","title":{"rendered":"JavaScript \u5f39\u7a97\u65e0\u6cd5\u5f39\u51fa\uff1a\u4ee3\u7801\u4e2d\u591a\u4f59\u62ec\u53f7\u548c\u9017\u53f7\u5bfc\u81f4\u8bed\u6cd5\u9519\u8bef\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173044687563597.jpg\" class=\"aligncenter\" title=\"JavaScript \u5f39\u7a97\u65e0\u6cd5\u5f39\u51fa\uff1a\u4ee3\u7801\u4e2d\u591a\u4f59\u62ec\u53f7\u548c\u9017\u53f7\u5bfc\u81f4\u8bed\u6cd5\u9519\u8bef\uff1f\u63d2\u56fe\" alt=\"JavaScript \u5f39\u7a97\u65e0\u6cd5\u5f39\u51fa\uff1a\u4ee3\u7801\u4e2d\u591a\u4f59\u62ec\u53f7\u548c\u9017\u53f7\u5bfc\u81f4\u8bed\u6cd5\u9519\u8bef\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u7a97\u53e3\u65e0\u6cd5\u5f39\u51fa\u7684\u539f\u56e0\u662f\u4ec0\u4e48\uff1f<\/strong><\/p>\n<p>\u5728\u63d0\u4f9b\u7684\u4ee3\u7801\u793a\u4f8b\u4e2d\uff0c\u65e0\u6cd5\u5f39\u51fa\u7a97\u53e3\u7684\u95ee\u9898\u53ef\u80fd\u662f\u7531\u4e8e\u4e00\u4e2a\u7ec6\u5fae\u7684\u9519\u8bef\u9020\u6210\u7684\u3002<\/p>\n<p>\u5728\u4ee5\u4e0b\u4ee3\u7801\u884c\u4e2d\uff0c\u60a8\u8bd5\u56fe\u83b7\u53d6\u5f53\u524d\u7a97\u53e3\u8ddd\u79bb\u9875\u9762\u9876\u90e8\u7684\u9ad8\u5ea6\uff1a<\/p>\n<pre>var scrolltop = $(document).scrolltop();(),<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u6b64\u5904\uff0c\u60a8\u5728 scrolltop() \u65b9\u6cd5\u8c03\u7528\u540e\u6dfb\u52a0\u4e86\u591a\u4f59\u7684\u62ec\u53f7\u548c\u9017\u53f7 () ,\u3002\u8fd9\u5c06\u5bfc\u81f4\u8bed\u6cd5\u9519\u8bef\u5e76\u963b\u6b62\u4ee3\u7801\u6b63\u5e38\u8fd0\u884c\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p><strong>\u6b63\u786e\u7684\u4ee3\u7801\uff1a<\/strong><\/p>\n<pre>var scrolltop = $(document).scrollTop();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fJavaScript \u5f39\u7a97\u65e0\u6cd5\u5f39\u51fa\uff1a\u4ee3\u7801\u4e2d\u591a\u4f59\u62ec\u53f7\u548c\u9017\u53f7\u5bfc\u81f4\u8bed\u6cd5\u9519\u8bef\uff1f\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>\u7a97\u53e3\u65e0\u6cd5\u5f39\u51fa\u7684\u539f\u56e0\u662f\u4ec0\u4e48\uff1f \u5728\u63d0\u4f9b\u7684\u4ee3\u7801\u793a\u4f8b\u4e2d\uff0c\u65e0\u6cd5\u5f39\u51fa\u7a97\u53e3\u7684\u95ee\u9898\u53ef\u80fd\u662f\u7531\u4e8e\u4e00\u4e2a\u7ec6\u5fae\u7684\u9519\u8bef\u9020\u6210\u7684\u3002 \u5728\u4ee5\u4e0b\u4ee3\u7801\u884c\u4e2d\uff0c\u60a8\u8bd5\u56fe\u83b7\u53d6\u5f53\u524d\u7a97\u53e3\u8ddd\u79bb\u9875\u9762\u9876\u90e8\u7684\u9ad8\u5ea6\uff1a var scrolltop = $(document).scrolltop();(), \u767b\u5f55\u540e\u590d\u5236 \u6b64\u5904\uff0c\u60a8\u5728 scrolltop() \u65b9\u6cd5\u8c03\u7528\u540e\u6dfb\u52a0\u4e86\u591a\u4f59\u7684\u62ec\u53f7\u548c\u9017\u53f7 () ,\u3002\u8fd9\u5c06\u5bfc\u81f4\u8bed\u6cd5\u9519\u8bef\u5e76\u963b\u6b62\u4ee3\u7801\u6b63\u5e38\u8fd0\u884c\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u6b63\u786e\u7684\u4ee3\u7801\uff1a var scrolltop = $(document).scrollTop(); 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