获取日期的区间数组

Date.prototype.Format = function (fmt) { //author: meizz
var o = {
"M+": this.getMonth() + 1, //月份
"d+": this.getDate(), //日
"h+": this.getHours(), //小时
"m+": this.getMinutes(), //分
"s+": this.getSeconds(), //秒
"q+": Math.floor((this.getMonth() + 3) / 3), //季度
"S": this.getMilliseconds() //毫秒
};
if (/(y+)/.test(fmt)) fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
for (var k in o)
if (new RegExp("(" + k + ")").test(fmt)) fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
return fmt;
}
function getDate(str){
var str=str+"";
var str=str.split("-")
var year=str[0];
var month=str[1];
var day=str[2];
var date=new Date();
date.setFullYear(year)
date.setMonth(month-1)
date.setDate(day)
var dateList=[]
for(var i=0;i<14;i++){
if(i==0){
dateList.push(date.Format("yyyy-MM-dd"))
}else{
date.setDate(date.getDate()-1)
dateList.push(date.Format("yyyy-MM-dd"))
}
}
return dateList;
}

getDate("2018-04-01");