Js初学菜鸟
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>数字时钟</title>
<style type="text/css">
#cont{border:2px solid green;width: 400px;height: 50px;text-align: center;line-height: 50px;margin:280px;font-size: 22px;font-family: '楷体';color:green;}
</style>
</head>
<body>
<div id="cont"></div>
<script type="text/javascript">
var tew=document.getElementById('cont')
// ti.innerHTML="你好";
function getTime(){ //获取时间
var date=new Date();
var year=date.getFullYear();
var month=date.getMonth();
var day=date.getDate();
var hour=date.getHours();
var minute=date.getMinutes();
var second=date.getSeconds();
//这样写显示时间在1~9会挤占空间;所以要在1~9的数字前补零;
if (hour<10) {
hour='0'+hour;
}
if (minute<10) {
minute='0'+minute;
}
if (second<10) {
second='0'+second;
}
var x=date.getDay();//获取星期
var time=year+'/'+month+'/'+day+'/'+hour+':'+minute+':'+second
tew.innerHTML=time;//将时间显示在div内
}
getTime();
setInterval(getTime,1000);
</script>
</body>
</html>