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Js获取当前日期时间及其它操作 (转)
- Js获取当前日期时间及其它操作2008-07-28 17:202008-06-11 17:24var myDate = new Date();
- myDate.getYear();
- myDate.getFullYear();
- myDate.getMonth();
- myDate.getDate();
- myDate.getDay();
- myDate.getTime();
- myDate.getHours();
- myDate.getMinutes();
- myDate.getSeconds();
- myDate.getMilliseconds();
- myDate.toLocaleDateString();
- var mytime=myDate.toLocaleTimeString();
- myDate.toLocaleString( );
- 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:
- Date.prototype.isLeapYear = function()
- {
- return (0==this.getYear()%4&&((this.getYear()%100!=0)||(this.getYear()%400==0)));
- }
-
- 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;
- }
-
- 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);
- }
-
-
- 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());
- }
- }
-
- Date.prototype.DateDiff = function(strInterval, dtEnd) {
- var dtStart = this;
- if (typeof dtEnd == 'string' )
- {
- 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();
- }
- }
-
- 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;
- }
-
- function IsValidDate(DateStr)
- {
- var sDate=DateStr.replace(/(^/s+|/s+$)/g,'');
- if(sDate=='') return true;
-
-
- var s = sDate.replace(/[/d]{ 4,4 }[/-/]{ 1 }[/d]{ 1,2 }[/-/]{ 1 }[/d]{ 1,2 }/g,'');
- if (s=='')
- {
- var t=new Date(sDate.replace(//-/g,'/'));
- var ar = sDate.split(/[-/:]/);
- if(ar[0] != t.getYear() || ar[1] != t.getMonth()+1 || ar[2] != t.getDate())
- {
-
- return false;
- }
- }
- else
- {
-
- return false;
- }
- return true;
- }
-
- function CheckDateTime(str)
- {
- var reg = /^(/d+)-(/d{ 1,2 })-(/d{ 1,2 }) (/d{ 1,2 }):(/d{ 1,2 }):(/d{ 1,2 })$/;
- 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;
- }
-
- 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;
- }
-
- 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;
- }
-
- 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;
- }
-
- 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;
- }
-
- function StringToDate(DateStr)
- {
-
- var converted = Date.parse(DateStr);
- var myDate = new Date(converted);
- if (isNaN(myDate))
- {
-
- var arys= DateStr.split('-');
- myDate = new Date(arys[0],--arys[1],arys[2]);
- }
- return myDate;
- }
- 原文来自: http://hi.baidu.com/%C6%AF%B2%B4%C8%E7%B7%E7/blog/item/18fdf7dd2601b3e976c638bb.html
-
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原文地址:https://www.cnblogs.com/andysd/p/2518744.html
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