如标题：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title> Test Date Now </title>
<script type="text/javascript">
window.onload = function() {
var show = document.getElementById("show");
setInterval(function() {
var time = new Date(); // 程序计时的月从0开始取值后+1
var m = time.getMonth() + 1;
var t = time.getFullYear() + "-" + m + "-"
+ time.getDate() + " " + time.getHours() + ":"
+ time.getMinutes() + ":" + time.getSeconds();
show.innerHTML = t;
//console.info(t);
}, 1000);
};
</script>
</head>
<body>
<div id="show"></div>
</body>
</html>