首先把三根柱子按顺序排成品字型，把所有的圆盘按从大到小的顺序放在柱子A上，根据圆盘的数量确定柱子的排放顺序：若n为偶数，按顺时针方向依次摆放 A B C；若n为奇数，按顺时针方向依次摆放 A C B。-First, the three pillars of order to the finished fonts, all the disks in sequence on the pillar by A, according to the number of disk emission to de