生日倒计时 

 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>

 

posted @ 2017-10-21 10:13  小鬼PSer  阅读(311)  评论(0)    收藏  举报