`

js倒计时功能

    博客分类：
  • js
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">  
<html>  
<head>  
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">  
<script type="text/javascript">
function $(id){
	return document.getElementById(id);
 }
var time = 12*60*60+2;   
  
 function changeTime(){
	time = time-1;   
    var hours = Math.floor(time/(60*60));   
    var minitus = Math.floor(time/60%60);   
    var seconds =Math.floor(time%60%60);       
    $('time').innerHTML = hours+':'+minitus+':'+seconds;   
       
 }   
 setInterval('changeTime()',1000);
</script>  
</head>  
<body>  
<div style='font-size:111px' id='time'></div>  
</body>

 

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