js html 页面倒计时精确到秒

<!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('2014/10/23 10:00:00'); //截止时间 前端路上 http://www.51xuediannao.com/qd63/
        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>
</html>

posted on 2017-08-19 16:24 yutingliuyl 阅读(490) 评论(0) 编辑收藏举报

js html 页面倒计时 精确到秒

js html 页面倒计时精确到秒