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【转】js日期时间函数
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Date.prototype.isLeapYear?判斷閏年
Date.prototype.Format?日期格式化
Date.prototype.DateAdd?日期計算
Date.prototype.DateDiff?比較日期差
Date.prototype.toString?日期轉字符串
Date.prototype.toArray?日期分割為數組
Date.prototype.DatePart?取日期的部分信息
Date.prototype.MaxDayOfDate?取日期所在月的最大天數
Date.prototype.WeekNumOfYear?判斷日期所在年的第幾周
StringToDate?字符串轉日期型
IsValidDate?驗證日期有效性
CheckDateTime?完整日期時間檢查
daysBetween?日期天數差
js 代碼
??????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;??}??
轉載于:https://www.cnblogs.com/zhwl/archive/2011/10/05/2199575.html
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