<html><!DOCTYPE html>
<html>
<head>
<script language="javascript">
var t = null;
t = setTimeout(time,1000);//开始执行
function time(){
clearTimeout(t);//清除定时器
dt = new Date();
var y=dt.getYear()+1900;
var mm=dt.getMonth()+1;
var d=dt.getDate();
var weekday=["星期日","星期一","星期二","星期三","星期四","星期五","星期六"];
var day=dt.getDay();
var h=dt.getHours();
var m=dt.getMinutes();
var s=dt.getSeconds();
if(h<10){h="0"+h;}
if(m<10){m="0"+m;}
if(s<10){s="0"+s;}
document.getElementById("timeshow").innerHTML = y+"-"+mm+"-"+d+" "+weekday[day]+" "+h+":"+m+":"+s;
t = setTimeout(time,1000); //设定定时器，循环执行
}
</script>
</head>
<body>
<div id='timeshow' style="color:red;font-size:40px;width:800px;height:200px;margin:0 auto" ></div>
</body>
</html>
