设计一个满足以下要求的比赛日程表：

(1)每个选手必须与其他n-1个选手各赛一次；

(2)每个选手一天只能赛一次；

(3)循环赛一共进行n-1天或n天（选手人数为偶数、奇数）。

-Design a game schedule to meet the following requirements: (1) Each player must be with the other n-1 once a player of the tournament　(2) Each player can only race once a day　(3) Round Robin conducted a total of n-1 天or n days (the number of players is even, odd).