(function(window){

function __Date() {

/*

返回时间格式统一为 2020-12-12

getDate:返回当前日期

getThisWeek:返回本周开始日期-结束日期

getThisMonth:返回本月开始日期-结束日期

getThisQuarter:返回本季度开始日期-结束日期

getThisYear: 返回本年开始日期-结束日期

*/

var currentData = new Date()

this.year = currentData.getFullYear()

this.month = currentData.getMonth() + 1

this.date = currentData.getDate()

this.day = currentData.getDay()

this.getDate = function(){

return this.formatDate()

}

this.getThisWeek= function(){

var oneDay = 24 * 60 * 60 * 1000

var startDay = this.formatDate(new Date() - (this.day * oneDay) )

var endDay = this.formatDate((6-this.day) * oneDay + +new Date())

return [startDay, endDay]

}

this.getThisMonth = function(){

var startDay = this.formatDate(this.year + '-' + this.month + '-' + '01')

var lastDay = new Date(this.year,this.month,0).getDate()

var endDay = this.formatDate(this.year + '-' + this.month + '-' + lastDay)

return [startDay, endDay]

}

this.getThisQuarter = function(){

var startMonth,endMonth;

var currentMonth = this.month

if(currentMonth >= 10){

startMonth = 10

endMonth = 12

}else if(currentMonth>=7){

startMonth = 7

endMonth = 9

}else if(currentMonth>=4){

startMonth = 4

endMonth = 6

}else{

startMonth = 1

endMonth = 3

}

var startDay = this.formatDate(this.year + '-' + startMonth + '-' + '01')

var lastDay = new Date(this.year,endMonth,0).getDate()

var endDay = this.formatDate(this.year + '-' + endMonth + '-' + lastDay)

return [startDay, endDay]

}

this.getThisYear = function(){

var startDay = this.formatDate(this.year + '-' + '01' + '-' + '01')

var lastDay = new Date(this.year,12,0).getDate()

var endDay = this.formatDate(this.year + '-' + '12' + '-' + lastDay)

return [startDay, endDay]

}

this.formatDate = function(date){

var currentData = date ? new Date(date) : new Date()

var year = currentData.getFullYear();

var month = currentData.getMonth()+1;

var date = currentData.getDate();

month = month < 10 ? '0' + month : month

date = date < 10 ? '0' + date : date

return year + '-' + month + '-' + date

}

}

window.__Date = new __Date()

})(window)

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