2018-11-12

a = 0#d =[]
for i in range(1,5):
    for j in range(1,5):
        for k in range(1,5):
            if (i != j) and (j != k) and (i != k):
                a+=1#   d.append([i,j,k])
                print (i,j,k)
print("zhongshushi:",a)
#or 另一个例子
from itertools import permutations#itertoos 内置的迭代器

for i in permutations([1, 2, 3, 4], 3):
    print(i)