Js获取当前日期时间及其它操作(2009-06-12 09:54:28)转载▼标签：分类：JavaScriptjs时间日期itvar myDate = 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,stIndexOf ('-'));var OneDay = DateOne.substring(DateOne.length,stIndexOf ('-')+1);var OneYear = DateOne.substring(0,DateOne.indexOf ('-'));var TwoMonth = DateTwo.substring(5,stIndexOf ('-'));var TwoDay = DateTwo.substring(DateTwo.length,stIndexOf ('-')+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。