<html> <body> <script type="text/javascript"> var d = new Date() dateFormat = function (date, format) { date = new Date(date); var o = { ‘M+‘ : date.getMonth() + 1, //month ‘d+‘ : date.getDate(), //day ‘H+‘ : date.getHours(), //hour ‘m+‘ : date.getMinutes(), //minute ‘s+‘ : date.getSeconds(), //second ‘S‘ : date.getMilliseconds() //millisecond }; if (/(y+)/.test(format)) format = format.replace(RegExp.$1, (date.getFullYear() + ‘‘).substr(4 - RegExp.$1.length)); for (var k in o) if (new RegExp(‘(‘ + k + ‘)‘).test(format)) format = format.replace(RegExp.$1, RegExp.$1.length == 1 ? o[k] : (‘00‘ + o[k]).substr((‘‘ + o[k]).length)); return format; } document.write (dateFormat(‘Mon Apr 27 09:08:20 CST 2015‘,‘yyyy-MM-dd HH:mm:ss‘)); </script> </body> </html>
原文：http://www.cnblogs.com/OnlyCT/p/5013281.html