需求描述：8个字母随机分成三组

import random
#构造存储的数据结构
offices = [[],[],[]]
names = ['A','B','C','D','E','F','G','H']

#循环遍历随机分配到三个列表
for name in names:
    index = random.randint(0,2)
    offices[index].append(name)

#输出随机分配结果
for row  in offices:
    for i  in row:
        print(i,end="")
    print("\n",end="")
    print("---"*10)