<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<script>
//设置时间
window.onload=function(){
showTime();
}
function showTime(){
var today =new Date();
var y=today.getFullYear();
var M=today.getMonth()+1;
var d=today.getDate();
var h=today.getHours();
var m=today.getMinutes();
var s=today.getSeconds();
m=checkTime(m);
s=checkTime(s);
var week=today.getDay();
//获取week的值是int值
//按照下面的Array排列，依次从0开始排到6
var w=new Array('星期天', '星期一', '星期二', '星期三', '星期四', '星期五', '星期六');
for(var i=0;i<w.length;i++){
document.getElementById('time').innerHTML= y + '年' + M + '月' + d + '日' + '</br>' + h + ":" + m + ":" + s + ' ' + w[week];
}
setTimeout('showTime()', 500);
}
//数字小于10时，前面添加一个0
function checkTime(i) {
if(i < 10) {
i = "0" + i;
}
return i
}
</script>
</head>
<body>
<div id="time"></div>
</body>
</html>