javascript下Date对象的时间格式化函数
http://blog.csdn.net/yzy0612/article/details/1730732

Date.prototype.format = function(format){
    /*
     * eg:format="YYYY-MM-dd hh:mm:ss";
     */
	if(typeof(format)=="undefined")
		format="dd/MM/yyyy";
    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;
}

使用方法:

var testDate = new Date();
var testStr = testDate.format("YYYY年MM月dd日hh小时mm分ss秒");
alert(testStr);