elementui设置当天之前的三个月可选

pickerOptions1: {
        disabledDate (time) {
          let curDate = (new Date()).getTime()
          let three = 90 * 24 * 3600 * 1000
          let threeMonths = curDate - three
          // eslint-disable-next-line no-unused-vars
          var thatDay = time.getTime()
          return time.getTime() > Date.now() - 8.64e7 || time.getTime() < (threeMonths)
        }
      },
      pickerOptions2: {
        disabledDate (time) {
          let curDate = (new Date()).getTime()
          var curD = new Date()
          /* 获取当前月份 */
          var curMonth = curD.getMonth()
          /*  生成实际的月份: 由于curMonth会比实际月份小1, 故需加1 */
          curD.setMonth(curMonth + 1)
          /* 将日期设置为0, 这里为什么要这样设置, 我不知道原因, 这是从网上学来的 */
          curD.setDate(0)
          /* 返回当月的天数 */
          var days = curD.getDate()
          let three = days * 24 * 3600 * 1000
          let threeMonths = curDate - three
          return time.getTime() > Date.now() - 8.64e7 || time.getTime() < (threeMonths)
        }
      },