Js获取当前日期时间及其它操作
Js获取当前日期时间及其它操作var 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); 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; } 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+$)/g,''); //去两边空格; if(sDate=='') return true; //如果格式满足YYYY-(/)MM-(/)DD或YYYY-(/)M-(/)DD或YYYY-(/)M-(/)D或YYYY-(/)MM-(/)D就替换为'' //数据库中，合法日期可以是:YYYY-MM/DD(2003-3/21),数据库会自动转换为YYYY-MM-DD格式 var s = sDate.replace(/[\d]{ 4,4 }[\-/]{ 1 }[\d]{ 1,2 }[\-/]{ 1 }[\d]{ 1,2 }/g,''); if (s=='') //说明格式满足YYYY-MM-DD或YYYY-M-DD或YYYY-M-D或YYYY-MM-D { var t=new Date(sDate.replace(/\-/g,'/')); var ar = sDate.split(/[-/:]/); if(ar != t.getYear() || ar != t.getMonth()+1 || ar != t.getDate()) { //alert('错误的日期格式！格式为：YYYY-MM-DD或YYYY/MM/DD。注意闰年。'); return false; } } else { //alert('错误的日期格式！格式为：YYYY-MM-DD或YYYY/MM/DD。注意闰年。'); return false; } return true; } //+---------------------------------------------------//| 日期时间检查//| 格式为：YYYY-MM-DD HH:MM:SS//+---------------------------------------------------function CheckDateTime(str){ var reg = /^(\d+)-(\d{ 1,2 })-(\d{ 1,2 }) (\d{ 1,2 }):(\d{ 1,2 }):(\d{ 1,2 })$/; var r = str.match(reg); if(r==null)return false; r=r-1; var d= new Date(r,r,r,r,r,r); if(d.getFullYear()!=r)return false; if(d.getMonth()!=r)return false; if(d.getDate()!=r)return false; if(d.getHours()!=r)return false; if(d.getMinutes()!=r)return false; if(d.getSeconds()!=r)return false; return true; } //+---------------------------------------------------//| 把日期分割成数组//+---------------------------------------------------Date.prototype.toArray = function(){ var myDate = this; var myArray = Array(); myArray = myDate.getFullYear(); myArray = myDate.getMonth(); myArray = myDate.getDate(); myArray = myDate.getHours(); myArray = myDate.getMinutes(); myArray = 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;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,ary+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; var month = ary+1; var day = ary; document.write('< script language=VBScript\> \n'); document.write('myDate = Datue(''+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,--arys,arys); } return myDate;} 若要显示:当前日期加时间(如:2009-06-12 12:00)function CurentTime() { var now = new Date(); var year = now.getFullYear(); //年 var month = now.getMonth() + 1; //月 var day = now.getDate(); //日 var hh = now.getHours(); //时 var mm = now.getMinutes(); //分 var clock = year + "-"; if(month < 10) clock += "0"; clock += month + "-"; if(day < 10) clock += "0"; clock += day + " "; if(hh < 10) clock += "0"; clock += hh + ":"; if (mm < 10) clock += '0'; clock += mm; return(clock); }
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