如何在Python中按位互斥或两个字符串? [英] how to do bitwise exclusive or of two strings in python?

问题描述

我想在python中执行按位异或两个字符串，但是python中不允许对字符串进行异或.我该怎么办?

I would like to perform a bitwise exclusive or of two strings in python, but xor of strings are not allowed in python. How can I do it ?

推荐答案

您可以将字符转换为整数，然后将其转换为xor:

You can convert the characters to integers and xor those instead:

l = [ord(a) ^ ord(b) for a,b in zip(s1,s2)]

这是一个更新的函数，以防因XOR而需要一个字符串:

Here's an updated function in case you need a string as a result of the XOR:

def sxor(s1,s2):    
    # convert strings to a list of character pair tuples
    # go through each tuple, converting them to ASCII code (ord)
    # perform exclusive or on the ASCII code
    # then convert the result back to ASCII (chr)
    # merge the resulting array of characters as a string
    return ''.join(chr(ord(a) ^ ord(b)) for a,b in zip(s1,s2))

查看其在线运行情况: ideone

See it working online: ideone

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