老师授课-3-倒计时之后点击

时间：2016-05-25 20:49:10 阅读：209 评论：0 收藏：0 [点我收藏+]

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 2 <html xmlns="http://www.w3.org/1999/xhtml">
 3 <head>
 4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 5 <title>无标题文档</title>
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 9     width:100px; height:40px; background-color:#0F3; border:5px double blue;}
10 
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12 </head>
13 <body>
14 <input type="button" value="同意（10）" id="bb" disabled="disabled" />
15 </body>
16 </html>
17 <script>
18 var n =10;
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20 function bian()
21 {
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23     if(n==0)
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26         bb.value="同意";    
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31         window.setTimeout("bian()",1000);
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34 window.setTimeout("bian()",1000);
35 
36 </script>