连接字符串：两个字符串列表的 "Multiplication"

Question

对于字符串列表，在此处将乘法运算定义为连接：

l1 = ['aa', 'bb', 'cc']
l2 = ['11', '22']
l3 = l1 op l2

预期输出：

l3 = ['aa11', 'aa22', 'bb11', 'bb22', 'cc11', 'cc22']

我们可以简单地使用

for l in l1:
    for ll in l2:
        l3.append(l+ll)

但如果听到 pythonic 解决方案，我将不胜感激。

Answer 1

from itertools import product

l1 = ['aa', 'bb', 'cc']
l2 = ['11', '22']

l3 = [x+y for (x,y) in product(l1,l2)]

print(l3)

但这实际上与您正在做的事情是一样的（前提是您更正了拼写错误 :P）

Answer 2

l3 = [a+b for a in l1 for b in l2]

Concatenating Strings: "Multiplication" of two list of strings