编程宝库 - 技术改变世界
编程宝库
编程宝库提供了 JS 在线测试工具，可在线测试 JavaScript 代码，你可以在代码编辑器中输入 JavaScript 代码并点击运行查看结果。
源代码
点击运行
<html> <head> <script type="text/javascript" src="http://libs.baidu.com/jquery/1.9.0/jquery.min.js"></script> <script type="text/javascript"> $(document).ready(function(){ $(".btn1").click(function(){ alert($("div").scrollTop()+" px"); }); }); </script> </head> <body> <div style="border:1px solid black;width:200px;height:200px;overflow:auto"> This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. </div> <button class="btn1">获得 scrollbar top offset</button> <p>试着移动滚动条，然后再次点击按钮。</p> </body> </html>
运行结果