def crypt(source,key):

    from itertools import cycle

    result=''

    temp=cycle(key)

    for ch in source:

        result=result+chr(ord(ch)^ord(next(temp)))

    return result

source='Jiangxi Insstitute of Busiess and Technology'

key='zWrite'

print('Before Encrypted:'+source)

encrypted=crypt(source,key)

print('After Encrypted:'+encrypted)

decrypted=crypt(encrypted,key)

print('After Decrypted:'+decrypted)

# Before Encrypted:Jiangxi Insstitute of Busiess and Technology

# After Encrypted:0>w;>Z8I6    >E9I ?

# .

# After Decrypted:Jiangxi Insstitute of Busiess and Technology

#字符串自带的简单加密

encode = str.maketrans('eilouvy','')#加密方式

words = 'iloveyou'

encode_words = words.translate(encode)#按encode加密方式加密

print(encode_words) #输出23461745

dedoed = str.maketrans('','eilouvy')#解密方式

dedoed_words = encode_words.translate(dedoed)#按decode解密方式解密

print(dedoed_words)#输出iloveyou

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原文：https://blog.csdn.net/tobe_numberone/article/details/80633384