<html>
<body>
<script>
/**
* @param {number}时间戳，由 new Date().getTime() 而得
*/
function formatTime(timestamp) {
function add0(m) { return m < 10 ? '0' + m : m }
var time = new Date(timestamp ? timestamp : new Date().getTime());
var y = time.getFullYear();
var m = time.getMonth() + 1;
var d = time.getDate();
var h = time.getHours();
var mm = time.getMinutes();
var s = time.getSeconds();
return y + '-' + add0(m) + '-' + add0(d) + ' ' + add0(h) + ':' + add0(mm) + ':' + add0(s);
}
var str =formatTime()
document.body.innerHTML =str
</script>
</body>
</html>
