python中两个数组（大小不同）之间可能存在的唯一组合？

Question

arr1=['One','Two','Five'],arr2=['Three','Four']

像itertools.combinations(arr1,2)给了我们
('OneTwo','TwoFive','OneFive')
我想知道有没有办法把这个应用到两个不同的数组上。？我是说arr1和arr2。在

Output should be OneThree,OneFour,TwoThree,TwoFour,FiveThree,FiveFour

Answer 1

如果您只需要OneThree,OneFour,TwoThree,TwoFour,FiveThree,FiveFour，那么一个双for循环将为您实现以下目的：

>>> for x in arr1:
        for y in arr2:
            print(x+y)


OneThree
OneFour
TwoThree
TwoFour
FiveThree
FiveFour

或者如果您希望结果显示在列表中：

^{pr2}$

Answer 2

["".join(v) for v in itertools.product(arr1, arr2)]
#results in 
['OneThree', 'OneFour', 'TwoThree', 'TwoFour', 'FiveThree', 'FiveFour']

Answer 3

您正在寻找^{}：

从医生那里可以看到：

product('ABCD', 'xy')  > Ax Ay Bx By Cx Cy Dx Dy
product(range(2), repeat=3)  > 000 001 010 011 100 101 110 111

样本代码：

^{pr2}$

要组合它们：

# This is the full code
import itertools

arr1 = ['One','Two','Five']
arr2 = ['Three','Four']

combined = ["".join(x) for x in itertools.product(arr1, arr2)]