js 获取当前日期时间 格式为 yyyymmdd hh:MM:ss

Date.prototype.format = function(format){ var args = { "M+" : this.getMonth() + 1, "d+" : this.getDate(), "h+" : this.getHours(), "m+" : this.getMinutes(), "s+" : this.getSeconds(), "q+" : Math.floor((this.getMonth() + 3) / 3),  //quarter

"S" : this.getMilliseconds() }; if(/(y+)/.test(format)) format = format.replace(RegExp.$1,(this.getFullYear() + "").substr(4 - RegExp.$1.length)); for(var i in args) { var n = args[i]; if(new RegExp("("+ i +")").test(format)) format = format.replace(RegExp.$1,RegExp.$1.length == 1 ? n : ("00" + n).substr(("" + n).length)); } return format;};

调用方法

alert(new Date().format("YYYY-MM-dd hh:mm:ss:S"));