1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
2 <html>
3 <head>
4 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
5 <title>生日倒计时</title>
6 <style type="text/css">
7 #msg{
8 text-align: center;
9 font-size: 20px;
10 }
11
12 #timer{
13 font-size: 20px;
14 color: red;
15 }
16 </style>
17 <script type="text/javascript">
18
19 function showTime(){
20 var currentTime=new Date();
21 var endTime=new Date("2018/2/13");
22 var remainTime=endTime.getTime()-currentTime.getTime();
23 // 1天=24小时 1小时=60分钟 1分钟=60秒 1秒=1000毫秒
24 var day=Math.floor(remainTime/(24*60*60*1000));
25 var hour=Math.floor((remainTime-day*24*60*60*1000)/(60*60*1000));
26 var minute=Math.floor((remainTime-day*24*60*60*1000-hour*60*60*1000)/(60*1000));
27 var second=Math.floor((remainTime-day*24*60*60*1000-hour*60*60*1000-minute*60*1000)/(1000));
28 if(remainTime<0){
29 document.getElementById("msg").innerHTML="生日已经结束！";
30 }else{
31 var time=day+"天 "+hour+"时"+minute+"分"+second+"秒！";
32 document.getElementById("timer").innerHTML=time;
33 }
34
35 }
36 setInterval("showTime()",1000);
37 </script>
38 </head>
39 <body>
40 <div id="msg">距离生日还有：<br/><span id="timer"></span></div>
41 </body>
42 </html>
