JS格式化时间

Date.prototype.format = function(format) {
var o = {
"M+": this.getMonth() + 1, //month
"d+": this.getDate(), //day
"h+": this.getHours(), //hour
"m+": this.getMinutes(), //minute
"s+": this.getSeconds(), //second
"q+": Math.floor((this.getMonth() + 3) / 3), //quarter
"S": this.getMilliseconds() //millisecond
}
if (/(y+)/.test(format)) format = format.replace(RegExp.1.length));
for (var k in o)
if (new RegExp("(" + k + ")").test(format))
format = format.replace(RegExp.1.length == 1 ? o[k] :
("00" + o[k]).substr(("" + o[k]).length));
return format;
}
说明：获取到时间var time = new Date().format("yyyy-MM-dd hh:mm:ss");