js秒显示当前时间
<!DOCTYPE html>
<head>
<meta charset="utf-8">
<script type="text/javascript">
function showTime(){
nowtime=new Date();
year=nowtime.getFullYear();
month=nowtime.getMonth()+1;
date=nowtime.getDate();
document.getElementById("mytime").innerText=year+"年"+month+"月"+date+" "+nowtime.toLocaleTimeString();
}
setInterval("showTime()",1000);
</script>
</head>
<body>
<span id="mytime"></span>
</body>
</html>