时间

倒计时：

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title></title>
        <script type="text/javascript">
            window.onload=function(){
            showTime(); //调用showTim
            function checkTime(i){
            if(i<10){
                i="0"+i;
            }
            
                return i;
            }
    //重复秒数，让秒数动
            function showTime()
            {  
                var myDate=new Date();
                var year=myDate.getFullYear();
                var month=myDate.getMonth()+1;
                var day=myDate.getDate();
                var d=myDate.getDate();
                
                var h=myDate.getHours();
                var m=myDate.getMinutes();
                var s=myDate.getSeconds();
                m = checkTime(m);
                s = checkTime(s);
                var weekday=new Array(7)
                weekday[0]='星期一'
                weekday[1]='星期二'
                weekday[2]='星期三'
                weekday[3]='星期四'
                weekday[4]='星期五'
                weekday[4]='星期六'
                weekday[6]='星期日'
                            
                document.getElementById('show').innerHTML=year+'年'+month+'月'+day+'日'+weekday[d]
                +h+':'+m+':'+s;
                setTimeout(showTime,500)
            }
            }   
        </script>
    </head>
    <body>
        <div id="show">时间显示</div>
    </body>
</html>

View Code

限时购：

<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>团购——限时抢</title>
<style>
@charset "UTF-8";
/* CSS Document */
div,img{
  margin:0;
  padding:0;
  border:0;
}


.content3{
  background:url(http://img.mukewang.com/534d13940001063d12000398.jpg) no-repeat;
  1200px;
  height:398px;
  margin:0 auto;
  position:relative;
}
.time{
  position:absolute;
  top:122px;
  left:46%;
  line-height:22px;
  font-size:14px;
}
</style>
</head>

<body>
<div class="content3">
<div class="time">还剩 <span id="LeftTime"></span></div>
</div>
<script>
function FreshTime()
{
        var endtime=new Date("2017/2/15,12:20:12");//结束时间
        var nowtime = new Date();//当前时间
        var lefttime= (endtime.getTime() - nowtime.getTime())/1000;
        d= parseInt(lefttime/(60*60*24))  ;
        h= parseInt(lefttime/(60*60)%24)   ;
        m= parseInt(lefttime/60%60)   ;
        s= parseInt(lefttime%60)  ;
       
        document.getElementById("LeftTime").innerHTML=d+"天"+h+"小时"+m+"分"+s+"秒";
        if(lefttime<=0){
        document.getElementById("LeftTime").innerHTML="团购已结束";
        clearInterval(sh);
        }
}
   FreshTime()
   var sh;
   sh= setInterval(FreshTime,300);
</script>
</body>
</html>

View Code

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原文地址：https://www.cnblogs.com/fireporsche/p/6381088.html