jquery日期函数
【转】http://www.cnblogs.com/xiangdingdingVictory/archive/2010/12/30/1922364.html
Jquery 日期计算
varmyDate = new Date();
myDate.getYear(); //获取当前年份(2位)
myDate.getFullYear(); //获取完整的年份(4位,1970-????)
myDate.getMonth(); //获取当前月份(0-11,0代表1月)
myDate.getDate(); //获取当前日(1-31)
myDate.getDay(); //获取当前星期X(0-6,0代表星期天)
myDate.getTime(); //获取当前时间(从1970.1.1开始的毫秒数)
myDate.getHours(); //获取当前小时数(0-23)
myDate.getMinutes(); //获取当前分钟数(0-59)
myDate.getSeconds(); //获取当前秒数(0-59)
myDate.getMilliseconds(); //获取当前毫秒数(0-999)
myDate.toLocaleDateString(); //获取当前日期
var mytime=myDate.toLocaleTimeString(); //获取当前时间
myDate.toLocaleString( ); //获取日期与时间
日期时间脚本库方法列表
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
JS代码
•//---------------------------------------------------
•// 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()>9?this.getMonth().toString():'0' + this.getMonth());
• 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(Date.parse(dtTmp) + (1000 * Number));
• case 'n' :return new Date(Date.parse(dtTmp) + (60000 * Number));
• case 'h' :return new Date(Date.parse(dtTmp) + (3600000 * Number));
• case 'd' :return new Date(Date.parse(dtTmp) + (86400000 * Number));
• case 'w' :return new Date(Date.parse(dtTmp) + ((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
•//+---------------------------------------------------
•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();
• }
•}
•
•//+---------------------------------------------------
•//| 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.toLocaleDateString();
• if (showWeek)
• {
• var Week = ['日','一','二','三','四','五','六'];
• str += ' 星期' + Week[myDate.getDay()];
• }
• return str;
•}
•
•//+---------------------------------------------------
•//| 日期合法性验证
•//| 格式为：YYYY-MM-DD或YYYY/MM/DD
•//+---------------------------------------------------
•function IsValidDate(DateStr)
•{
• var sDate=DateStr.replace(/(^\s+|\s+$)/g,''); //去两边空格;
• if(sDate=='') return true;
• //如果格式满足YYYY-(/)MM-(/)DD或YYYY-(/)M-(/)DD或YYYY-(/)M-(/)D或YYYY-(/)MM-(/)D就替换为''
• //数据库中，合法日期可以是:YYYY-MM/DD(2003-3/21),数据库会自动转换为YYYY-MM-DD格式
• var s = sDate.replace(/[\d]{ 4,4 }[\-/]{ 1 }[\d]{ 1,2 }[\-/]{ 1 }[\d]{ 1,2 }/g,'');
• if (s=='') //说明格式满足YYYY-MM-DD或YYYY-M-DD或YYYY-M-D或YYYY-MM-D
• {
• var t=new Date(sDate.replace(/\-/g,'/'));
• var ar = sDate.split(/[-/:]/);
• if(ar[0] != t.getYear() || ar[1] != t.getMonth()+1 || ar[2] != t.getDate())
• {
• //alert('错误的日期格式！格式为：YYYY-MM-DD或YYYY/MM/DD。注意闰年。');
• return false;
• }
• }
• else
• {
• //alert('错误的日期格式！格式为：YYYY-MM-DD或YYYY/MM/DD。注意闰年。');
• return false;
• }
• return true;
•}
•
•//+---------------------------------------------------
•//| 日期时间检查
•//| 格式为：YYYY-MM-DD HH:MM:SS
•//+---------------------------------------------------
•function CheckDateTime(str)
•{
• var reg = /^(\d+)-(\d{ 1,2 })-(\d{ 1,2 }) (\d{ 1,2 }):(\d{ 1,2 }):(\d{ 1,2 })$/;
• 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;
•}
•
•//+---------------------------------------------------
•//| 取得当前日期所在月的最大天数
•//+---------------------------------------------------
•Date.prototype.MaxDayOfDate = function()
•{
• var myDate = this;
• var ary = myDate.toArray();
• var date1 = (new Date(ary[0],ary[1]+1,1));
• var date2 = date1.dateAdd(1,'m',1);
• var result = dateDiff(date1.Format('yyyy-MM-dd'),date2.Format('yyyy-MM-dd'));
• return result;
•}
•
•//+---------------------------------------------------
•//| 取得当前日期所在周是一年中的第几周
•//+---------------------------------------------------
•Date.prototype.WeekNumOfYear = function()
•{
• var myDate = this;
• var ary = myDate.toArray();
• var year = ary[0];
• var month = ary[1]+1;
• var day = ary[2];
• document.write('< script language=VBScript\> \n');
• document.write('myDate = DateValue(''+month+'-'+day+'-'+year+'') \n');
• document.write('result = DatePart('ww', myDate) \n');
• document.write(' \n');
• return result;
•}
•
•//+---------------------------------------------------
•//| 字符串转成日期类型
•//| 格式 MM/dd/YYYY MM-dd-YYYY YYYY/MM/dd YYYY-MM-dd
•//+---------------------------------------------------
•function StringToDate(DateStr)
•{
•
• var converted = Date.parse(DateStr);
• var myDate = new Date(converted);
• if (isNaN(myDate))
• {
• //var delimCahar = DateStr.indexOf('/')!=-1?'/':'-';
• var arys= DateStr.split('-');
• myDate = new Date(arys[0],--arys[1],arys[2]);
• }
• return myDate;
•}
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