JS 倒计时

经常遇到需要倒计时的地方，下面的JS可以简单实现倒计时，当然可以加上Css使得界面更加美观！
<script type="text/javascript">
   function CountDown(){
       var EndTime= new Date(document.getElementById('endTime').value); 
       var NowTime = new Date();
       var t =EndTime.getTime() - NowTime.getTime();
       var day=Math.floor(t/1000/60/60/24);
       var hour=Math.floor(t/1000/60/60%24);
       var min=Math.floor(t/1000/60%60);
       var sec=Math.floor(t/1000%60);
       document.getElementById("t_day").innerHTML = day  +"Days";
       document.getElementById("t_hour").innerHTML = hour + "Hours";
       document.getElementById("t_min").innerHTML = min + "Minutes";
       document.getElementById("t_sec").innerHTML = sec + "Seconds";
   }
   setInterval(CountDown,1000);
</script>
</head>
<body>
　　Please select the endTime<input type="datetime-local" id='endTime'><br>
    <div>
        <span id="t_day"></span>
        <span id="t_hour"></span>
        <span id="t_min"></span>
        <span id="t_sec"></span>
    </div>
  
</body>
posted @ 2017-12-18 10:55  者行孙某  阅读(149)  评论(0)    收藏  举报