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1 <html> 2 <head> 3 <script src="http://libs.baidu.com/jquery/1.9.0/jquery.js"></script> 4 </head> 5 <body> 6 <button class=‘view_p‘ style=‘height:50px;width:100px;‘ onclick="timedMsg();">开始</button> 7 </body> 8 <script type="text/javascript"> 9 var start_time=12; 10 function timedMsg(){ 11 start_time--; 12 $(‘.view_p‘).html(start_time); 13 $(‘.view_p‘).attr(‘disabled‘,true); 14 if(start_time>0){ 15 setTimeout(function(){ 16 timedMsg(); 17 },1000); 18 } 19 if(start_time==0){ 20 $(‘.view_p‘).html(‘开始‘); 21 $(‘.view_p‘).attr(‘disabled‘,false); 22 start_time=12; 23 } 24 } 25 </script> 26 </html>
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原文地址：http://www.cnblogs.com/719907411hl/p/4551835.html
