js中倒计时器怎么实现

prtyaa 2023-12-26 18:02:01  65410

分类专栏：资讯

<!doctype html>
<html>
<head>
<meta charset="utf-8">
</head>
<body>

<div id="CountMsg" class="HotDate">
  <span id="t_d">00天</span>
  <span id="t_h">00时</span>
  <span id="t_m">00分</span>
  <span id="t_s">00秒</span>
</div>

<script type="text/javascript">
 function getRTime(){
 var EndTime= new Date('2017/8/7 10:00:00'); //截止时间
 var NowTime = new Date();
 var t =EndTime.getTime() - NowTime.getTime();
 /*var d=Math.floor(t/1000/60/60/24);
 t-=d*(1000*60*60*24);
 var h=Math.floor(t/1000/60/60);
 t-=h*60*60*1000;
 var m=Math.floor(t/1000/60);
 t-=m*60*1000;
 var s=Math.floor(t/1000);*/

 var d=Math.floor(t/1000/60/60/24);
 var h=Math.floor(t/1000/60/60%24);
 var m=Math.floor(t/1000/60%60);
 var s=Math.floor(t/1000%60);

 document.getElementById("t_d").innerHTML = d + "天";
 document.getElementById("t_h").innerHTML = h + "时";
 document.getElementById("t_m").innerHTML = m + "分";
 document.getElementById("t_s").innerHTML = s + "秒";
}
setInterval(getRTime,1000);
</script>

</body>

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js中倒计时器怎么实现

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