python - python中两个数组(不同大小)之间可能的唯一组合？

Question

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

像itertools.combinations(arr1,2)给我们
('OneTwo','TwoFive','OneFive')
我想知道是否有任何方法可以将其应用于两个不同的数组。？我的意思是 arr1 和 arr2。

输出应为 OneThree、OneFour、TwoThree、TwoFour、FiveThree、FiveFour

Answer 1

您正在寻找.product() :

从文档中，它执行以下操作:

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

示例代码:

>>> x = itertools.product(arr1, arr2)
>>> for i in x: print i
('One', 'Three')
('One', 'Four')
('Two', 'Three')
('Two', 'Four')
('Five', 'Three')
('Five', 'Four')

将它们组合起来:

# This is the full code
import itertools

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

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