JS 时间处理

/*
Date.prototype.isLeapYear 判断闰年
Date.prototype.Format 日期格式化
Date.prototype.DateAdd 日期计算
Date.prototype.DateDiff 比较日期差
Date.prototype.toString 日期转字符串
Date.prototype.toArray 日期分割为数组
Date.prototype.DatePart 取日期的部分信息
Date.prototype.MaxDayOfDate 取日期所在月的最大天数
Date.prototype.WeekNumOfYear 判断日期所在年的第几周
StringToDate 字符串转日期型
IsValidDate 验证日期有效性
CheckDateTime 完整日期时间检查
daysBetween 日期天数差
*/
//---------------------------------------------------
// 判断闰年
//---------------------------------------------------
Date.prototype.isLeapYear = function()
{
    return (0==this.getYear()%4&&((this.getYear()%100!=0)||(this.getYear()%400==0)));
}
//---------------------------------------------------
// 日期格式化
// 格式 YYYY/yyyy/YY/yy 表示年份
// MM/M 月份
// W/w 星期
// dd/DD/d/D 日期
// hh/HH/h/H 时间
// mm/m 分钟
// ss/SS/s/S 秒
//---------------------------------------------------
Date.prototype.Format = function(formatStr)
{
    var str = formatStr;
    var Week = ['日','一','二','三','四','五','六'];

    str=str.replace(/yyyy|YYYY/,this.getFullYear());
    str=str.replace(/yy|YY/,(this.getYear() % 100)>9?(this.getYear() % 100).toString():'0' + (this.getYear() % 100));
    str=str.replace(/MM/,(this.getMonth()+1)>9?(this.getMonth()+1).toString():'0' + (this.getMonth()+1));
    str=str.replace(/M/g,this.getMonth());
    str=str.replace(/w|W/g,Week[this.getDay()]);
    str=str.replace(/dd|DD/,this.getDate()>9?this.getDate().toString():'0' + this.getDate());
    str=str.replace(/d|D/g,this.getDate());
    str=str.replace(/hh|HH/,this.getHours()>9?this.getHours().toString():'0' + this.getHours());
    str=str.replace(/h|H/g,this.getHours());
    str=str.replace(/mm/,this.getMinutes()>9?this.getMinutes().toString():'0' + this.getMinutes());
    str=str.replace(/m/g,this.getMinutes());
    str=str.replace(/ss|SS/,this.getSeconds()>9?this.getSeconds().toString():'0' + this.getSeconds());
    str=str.replace(/s|S/g,this.getSeconds());
    return str;
}
//+---------------------------------------------------
//| 求两个时间的天数差 日期格式为 YYYY-MM-dd
//+---------------------------------------------------
function daysBetween(DateOne,DateTwo)
{
    var OneMonth = DateOne.substring(5,DateOne.lastIndexOf ('-'));
    var OneDay = DateOne.substring(DateOne.length,DateOne.lastIndexOf ('-')+1);
    var OneYear = DateOne.substring(0,DateOne.indexOf ('-'));
    var TwoMonth = DateTwo.substring(5,DateTwo.lastIndexOf ('-'));
    var TwoDay = DateTwo.substring(DateTwo.length,DateTwo.lastIndexOf ('-')+1);
    var TwoYear = DateTwo.substring(0,DateTwo.indexOf ('-'));
    var cha=((Date.parse(OneMonth+'/'+OneDay+'/'+OneYear)- Date.parse(TwoMonth+'/'+TwoDay+'/'+TwoYear))/86400000);
    return Math.abs(cha);
}
//+---------------------------------------------------
//| 日期计算
//+---------------------------------------------------
Date.prototype.DateAdd = function(strInterval, Number) {
    var dtTmp = this;
    switch (strInterval) {
        case 's' :return new Date(dtTmp.getTime()+ (1000 * Number));
        case 'n' :return new Date(dtTmp.getTime() + (60000 * Number));
        case 'h' :return new Date(dtTmp.getTime() + (3600000 * Number));
        case 'd' :return new Date(dtTmp.getTime() + (86400000 * Number));
        case 'w' :return new Date(dtTmp.getTime() + ((86400000 * 7) * Number));
        case 'q' :return new Date(dtTmp.getFullYear(), (dtTmp.getMonth()) + Number*3, dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());
        case 'm' :return new Date(dtTmp.getFullYear(), (dtTmp.getMonth()) + Number, dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());
        case 'y' :return new Date((dtTmp.getFullYear() + Number), dtTmp.getMonth(), dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());
    }
}
//时间增加N个月 ，并指定是一号
Date.prototype.DateAddMonthToFristDay = function(Number) {
    var dtTmp = this;
    return new Date(dtTmp.getFullYear(), (dtTmp.getMonth()) + Number, 1, dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());
}
//+---------------------------------------------------
//| 比较日期差 dtEnd 格式为日期型或者 有效日期格式字符串
//+---------------------------------------------------
Date.prototype.DateDiff = function(strInterval, dtEnd) {
    var dtStart = this;
    if (typeof dtEnd == 'string' )//如果是字符串转换为日期型
    {
        dtEnd = StringToDate(dtEnd);
    }
    switch (strInterval) {
        case 's' :return parseInt((dtEnd - dtStart) / 1000);
        case 'n' :return parseInt((dtEnd - dtStart) / 60000);
        case 'h' :return parseInt((dtEnd - dtStart) / 3600000);
        case 'd' :return parseInt((dtEnd - dtStart) / 86400000);
        case 'w' :return parseInt((dtEnd - dtStart) / (86400000 * 7));
        case 'm' :return (dtEnd.getMonth()+1)+((dtEnd.getFullYear()-dtStart.getFullYear())*12) - (dtStart.getMonth()+1);
        case 'y' :return dtEnd.getFullYear() - dtStart.getFullYear();
    }
}
//+---------------------------------------------------
//| 字符串转成日期类型
//| 格式 yyyyMMdd yyyy/MM/dd 或者其它JS支持的格式
//+---------------------------------------------------
function StringToDate(time){
	if(time.length==8){
		time = time.substr(0,4)+"/"+time.substr(4,2)+"/"+time.substr(6,2);
	}else if(time.length==6){
		var dd = new Date().Format("dd");
		time = time.substr(0,4)+"/"+time.substr(4,2)+"/"+dd;
	}else if(time.length==4){
		var MM = new Date().Format("MM");
		var dd = new Date().Format("dd");
		time = time+"/"+MM+"/"+dd;
	}
    var date = new Date(time);
    return date;
}
function DateAdd(date,strInterval, Number) {
    switch (strInterval) {
        case 's' :return new Date(date.getTime() + (1000 * Number));
        case 'n' :return new Date(date.getTime() + (60000 * Number));
        case 'h' :return new Date(date.getTime() + (3600000 * Number));
        case 'd' :return new Date(date.getTime() + (86400000 * Number));
        case 'w' :return new Date(date.getTime() + ((86400000 * 7) * Number));
        case 'q' :return new Date(dtTmp.getFullYear(), (dtTmp.getMonth()) + Number*3, dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());
        case 'm' :return new Date(dtTmp.getFullYear(), (dtTmp.getMonth()) + Number, dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());
        case 'y' :return new Date((dtTmp.getFullYear() + Number), dtTmp.getMonth(), dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());
    }
}
//+---------------------------------------------------
//| 比较日期差 dtEnd 格式为日期型或者 有效日期格式字符串
//+---------------------------------------------------
function DateDiff(strInterval,dtStart, dtEnd) {
    if (typeof dtEnd == 'string' )//如果是字符串转换为日期型
    {
        dtEnd = StringToDate(dtEnd);
    }
    switch (strInterval) {
        case 's' :return parseInt((dtEnd - dtStart) / 1000);
        case 'n' :return parseInt((dtEnd - dtStart) / 60000);
        case 'h' :return parseInt((dtEnd - dtStart) / 3600000);
        case 'd' :return parseInt((dtEnd - dtStart) / 86400000);
        case 'w' :return parseInt((dtEnd - dtStart) / (86400000 * 7));
        case 'm' :return (dtEnd.getMonth()+1)+((dtEnd.getFullYear()-dtStart.getFullYear())*12) - (dtStart.getMonth()+1);
        case 'y' :return dtEnd.getFullYear() - dtStart.getFullYear();
    }
}
//+---------------------------------------------------
//| 日期输出字符串，重载了系统的toString方法
//+---------------------------------------------------
Date.prototype.toString = function(showWeek)
{
    var myDate= this;
    var str = myDate.valueOf();
    if (showWeek)
    {
        var Week = ['日','一','二','三','四','五','六'];
        str += ' 星期' + Week[myDate.getDay()];
    }
    return str;
}
//+---------------------------------------------------
//| 日期时间检查
//| 格式为：YYYY-MM-DD HH:MM:SS
//+---------------------------------------------------
function CheckDateTime(str)
{
    var reg = /^(\d+)-(\d{ 1,2 })-(\d{ 1,2 }) (\d{ 1,2 }):(\d{ 1,2 }):(\d{ 1,2 })$/;
    var r = str.match(reg);
    if(r==null)return false;
    r[2]=r[2]-1;
    var d= new Date(r[1],r[2],r[3],r[4],r[5],r[6]);
    if(d.getFullYear()!=r[1])return false;
    if(d.getMonth()!=r[2])return false;
    if(d.getDate()!=r[3])return false;
    if(d.getHours()!=r[4])return false;
    if(d.getMinutes()!=r[5])return false;
    if(d.getSeconds()!=r[6])return false;
    return true;
}
//+---------------------------------------------------
//| 把日期分割成数组
//+---------------------------------------------------
Date.prototype.toArray = function()
{
    var myDate = this;
    var myArray = Array();
    myArray[0] = myDate.getFullYear();
    myArray[1] = myDate.getMonth();
    myArray[2] = myDate.getDate();
    myArray[3] = myDate.getHours();
    myArray[4] = myDate.getMinutes();
    myArray[5] = myDate.getSeconds();
    return myArray;
}

//+---------------------------------------------------
//| 取得日期数据信息
//| 参数 interval 表示数据类型
//| y 年 m月 d日 w星期 ww周 h时 n分 s秒
//+---------------------------------------------------
Date.prototype.DatePart = function(interval)
{
    var myDate = this;
    var partStr='';
    var Week = ['日','一','二','三','四','五','六'];
    switch (interval)
    {
        case 'y' :partStr = myDate.getFullYear();break;
        case 'm' :partStr = myDate.getMonth()+1;break;
        case 'd' :partStr = myDate.getDate();break;
        case 'w' :partStr = Week[myDate.getDay()];break;
        case 'ww' :partStr = myDate.WeekNumOfYear();break;
        case 'h' :partStr = myDate.getHours();break;
        case 'n' :partStr = myDate.getMinutes();break;
        case 's' :partStr = myDate.getSeconds();break;
    }
    return partStr;
}
/**
 * 时间比较函数 时间格式YYYYMM
 * beginTime > endTime时，返回-1
 * beginTime < endTime时，返回1
 * beginTime = endTime时，返回0
 */
function DateCompare(beginTime, endTime) {
	beginTime = beginTime.substr(0,4)+"/"+beginTime.substr(4)+"/01";
	endTime = endTime.substr(0,4)+"/"+endTime.substr(4)+"/01";
	var result = Date.parse(beginTime) - Date.parse(endTime);
	if (result == 0) {
		return 0;
	} else if (result < 0) {
		return 1;
	} else if (result > 0) {
		return -1;
	}
}
/**
 * 根据年月获取当月总天数
 * @param month
 */
function getDays(month) {
	var date = StringToDate(month);
	var year = date.getFullYear();//获取年份
	var mouth = date.getMonth() + 1;//获取当前月份
	var days ;//定义当月的天数；
	//当月份为二月时，根据闰年还是非闰年判断天数
	if(mouth == 2){
        days= year % 4 == 0 ? 29 : 28;
	}else if(mouth == 1 || mouth == 3 || mouth == 5 || mouth == 7 || mouth == 8 || mouth == 10 || mouth == 12){
		days= 31;
	}else{
        days= 30;
    }
   return days;
}

Array.prototype.max = function(){   //最大值
 return Math.max.apply({},this)
}

Array.prototype.min = function(){   //最小值
 return Math.min.apply({},this)
}

/**
 * 根据传入时间返回时间下一级lable
 * 传入时间为2016 返回1-12月
 * 传入时间为201608 返回 1-31日
 * 传入时间为20160804 返回 0-23时 
 * @param time 格式为 2016 201608 20160801 三种，不支持其它格式
 */
function getTimeLable (time){
	var times=[];
	if(time.length==4){
		for(var i=1; i<=12;i++){
			times.push({"label":i+"月"});
		}
	}else if(time.length==6){
		for(var i=1; i<=getDays(time);i++){
			times.push({"label":i+"日"});
		}
	}else if(time.length==8){
		var tempHour = ['00','01','02','03','04','05','06','07','08','09','10','11','12','13','14','15','16','17','18','19','20','21','22','23'];
		$(tempHour).each(function(i,itm){
			times.push({"label":itm+":00"});
		});
	} 
	return times;
}