列出以下三项所有字符的排列
s1="abc"
s2="ABC"
s3="123"
s1="abc"
s2="ABC"
s3="123"
for x in s1:
for y in s2:
for z in s3:
print(x+y+z)
输出结果
Out put
aA1
aA2
aA3
aB1
aB2
aB3
aC1
aC2
aC3
bA1
bA2
bA3
bB1
bB2
bB3
bC1
bC2
bC3
cA1
cA2
cA3
cB1
cB2
cB3
cC1
cC2
cC3
