jq实现去底部去顶部功能

 1 <!DOCTYPE html>
 2 <html>
 3     <head>
 4         <meta charset="utf-8">
 5         <title>jq实现去底部去顶部功能</title>
 6     </head>
 7     <style>
 8         li {
 9             height: 100px;
10         }
11     </style>
12     <body>
13         <ul id="box">
14             <li><a id="tobottom">去底部</a></li>
15             <li>1</li>
16             <li>2</li>
17             <li>3</li>
18             <li>4</li>
19             <li>5</li>
20             <li>6</li>
21             <li><a id="totop">去顶部</a></li>
22         </ul>
23     </body>
24     <script src="https://libs.baidu.com/jquery/1.9.1/jquery.min.js" type="text/javascript" charset="utf-8"></script>
25     <script type="text/javascript" charset="utf-8">
26         /* 去底部 */
27         $('#tobottom').on('click', function() {
28             /* $('html,body,#box').scrollTop(9999); */
29             $('html,body,#box').animate({
30                 scrollTop: 9999
31             }, 'slow');
32         });
33 
34         /* 去顶部 */
35         $('#totop').on('click', function() {
36             $('html,body,#box').animate({
37                 scrollTop: 0
38             }, 'slow'); //缓慢动画
39         });
40     </script>
41 </html>

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转载自www.cnblogs.com/antao/p/12515823.html