let startTime = '2020-01-01'
let endTime = '2020-08-01'
let date = endTimeIf(startTime .substr(0, 4), startTime .substr(5,2))
// year 年份 value月份 返回当前月的最后一天
function endTimeIf(year, value) {
let t = ['02']
let t1 = [ '04', '06', '09', '11']
let t2 = ['01', '03', '05', '07', '08', '10', '12']
if (t.indexOf(value) !== -1) {
if (Number(year) /4 ===0) {
return '29'
}else {
return '28'
}
}
if (t1.indexOf(value) !== -1) {
return '30'
}
if (t2.indexOf(value) !== -1) {
return '31'
}
}
