[javascript]代码库
<!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>
<title>倒计时</title>
</head>
<body>
<DIV id="timer1" title="11">
</DIV>
<DIV id="timer2" title="11">
</DIV>
<DIV id="timer3" title="11">
</DIV>
<script language="javascript" type="text/javascript">
var thistime = new Date();
thistime=thistime.getTime();
setInterval("my('2016-8-8 22:23:42','2016-8-8 22:23:52','timer1')",1000);
setInterval("my('2016-8-8 22:23:32','2016-8-8 22:23:52','timer2')",1000);
setInterval("my('2016-8-8 22:23:22','2016-8-8 22:23:52','timer3')",1000);
function my(mstart,mend,mid){
var str=document.getElementById(mid);
mstart=mstart.replace(/-/ig,"/")；//处理IE兼容性
var start = new Date(mstart);
start=start.getTime();
mend=mend.replace(/-/ig,"/");
var end = new Date(mend);
end=end.getTime();
var now = new Date();
now=now.getTime();
var allsecond=now - end;
//document.getElementById("timers").innerHTML="倒计时还有："+day+"天"+hour+"小时"+minute+"分"+second+"秒" ;
var endsecond=now - end;
endsecond=Math.floor(endsecond/1000);
var startsecond=thistime - start;
startsecond=Math.floor(startsecond/1000);
var daojishi=startsecond -endsecond;
//str.innerHTML="距离开始时间还有："+startsecond+"秒；距离结束时间还有："+endsecond+"秒;倒计时还有："+daojishi+"秒" ;
var day=Math.floor(daojishi/(60*60*24));
var hour=Math.floor((daojishi-day*24*60*60)/3600);
var minute=Math.floor((daojishi-day*24*60*60-hour*3600)/60);
var second=Math.floor(daojishi-day*24*60*60-hour*3600-minute*60);
str.innerHTML="</br>倒计时还有："+day+"天"+hour+"小时"+minute+"分"+second+"秒" ;
if(daojishi<0){
str.innerHTML="倒计时结束";
}
}
</script>
</body>
</html>
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