js日期格式化

//使用 formateDate(new Date(),"yyyy-MM-dd hh:mm:ss")// 日期格式化function formateDate(date,format){return new Date(date).format(format);}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, (this.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;}