如何获得未来n天的日期及是对应的星期几

/**
 * 获取时间
 * day_count 是多少天
 * 
 */

getDays(day_count) {
      var date = new Date()
      var date1 = new Date()
      var timeLimit = 23 * 60 * 60
      var nowTime = date.getHours() * 60 * 60 + date.getMinutes() * 60 + date.getSeconds()

      var dates = []
      var tempdates = []
      var week = ['星期日', '星期一', '星期二', '星期三', '星期四', '星期五', '星期六']
      for (var i = 0; i <= day_count; i++) {
        var d = null
        ' '
        if (timeLimit > nowTime) {
          // date1 = date.getDate()+1
          date1.setTime(date1.getTime() + 24 * 60 * 60 * 1000)
        } else {
          // date1 = date.getDate()+2
          date1.setTime(date1.getTime() + 24 * 60 * 60 * 1000 * 2)
        }
        var month = date1.getMonth() + 1
        var dateStr = date1.getDate()
        if (month < 10) {
          month = '0' + month
        }
        if (dateStr < 10) {
          dateStr = '0' + dateStr
        }
        d = date1.getFullYear() + '-' + month + '-' + dateStr
        var weeks = ''
        var day = new Date(d)
        var z = day.getDay()
        weeks = week[z]
        var a = d + '(' + weeks + ')'
        dates.push(a)
        tempdates.push(d)
        date.setDate(date.getDate() + 1)
      }
      this.multiArray[0] = dates
      this.agreedDeliveryDateList = tempdates
    },

　　

//调用函数，以未来7天为例
getDays(7);

　参考：https://www.cnblogs.com/huaji666/p/6814354.html