var myDate=new Date() //Date 对象会自动把当前日期和时间保存为其初始值。
function time(){
var oDate = new Date();
var year = oDate.getFullYear();
var month = oDate.getMonth() + 1 ;
var dDate = oDate.getDate();
var day = oDate.getDay();
var house = oDate.getHours();
var minu = oDate.getMinutes();
var sec = oDate.getSeconds();
switch(day){
case 1:
day = '星期一';
break;
case 2:
day = '星期二';
break;
case 3:
day = '星期三';
break;
case 4:
day = '星期四';
break;
case 5:
day = '星期五';
break;
case 6:
day = '星期六';
break;
case 0:
day = '星期日';
break;
}
function double( t ){
if( t < 10 ){
t = '0' + t;
}
return t;
}
document.body.innerHTML = year + '年' + month +'月'+ dDate + '日 ' + day + ' ' + double(house) +':'+ double(minu) +':' + double(sec);
}
time();
setInterval(time,1000);
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<body>
<div id="lastTime">
<span>0天 </span>
<span>00: </span>
<span>00: </span>
<span>00 </span>
</div>
<br /><br />
<style type="text/css">
#btn{
text-decoration: none;
display: block;
width: 100px;
height: 35px;
background: #ccc;
text-align: center;
line-height: 35px;
color: #666;
}
#btn.btn{
background: red;
color: #fff;
font-size: 20px;
font-weight: bold;
}
</style>
<a href="javascript:;" id="btn">即将开抢!</a>
<script type="text/javascript">
var oLt = document.getElementById("lastTime");
var oBtn = document.getElementById("btn");
time();
var timer = setInterval( time , 1000 );
function time(){
var endTime = new Date('2017/01/13 00:00:00');//结束日期不得在当前日期之前
var nowTime = new Date();
var splus = endTime.getTime() - nowTime.getTime();
//天 时 分 秒
if( splus <= 1 ){
clearInterval( timer );
oBtn.className = 'btn';
oBn.innerHTML = '开始秒杀!';
oBtn.href = 'http://www.baidu.com';
return;
}else{
oBtn.className = '';
}
var day = Math.floor( splus / 1000 / 60 / 60 / 24 );
var hours = Math.floor( splus / 1000 / 60 / 60 % 24 );
var min = Math.floor(splus / 1000 / 60 % 60);
var sec = Math.floor(splus / 1000 % 60);
oLt.innerHTML = day + '天 ' + double( hours ) + ':' + double( min ) + ':' + double( sec );
function double( n ){
if( n < 10 ){
n = '0' + n;
}
return n;
}
}
</script>
</body>
</html>
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