设有8个运动员要进行比赛，设计一个日程表： 1)每个选手必须与其他7个选手各赛一次； 2)每个选手一天只能赛一次； 要求：根据分治法基本思想-Of eight athletes to compete to design a schedule: 1) Each player must match the other seven players each time 2) Each player race day only once requirements: According to