100 Python 题

Posted 2020-12-20 hrunjie

1.

list_num = [1, 2, 3, 4]
count = 0
for x in list_num:
    for y in list_num:
        for z in list_num:
            if (x!=y and x!=z and y!=z):
                count += 1
                print(str(x)+str(y)+str(z))
print(‘total is %d‘%(count))

法二

import itertools

list_num = [1, 2, 3, 4]

for x in itertools.permutations(list_num,3):

    print(x)