把写内容过程中常用的内容段记录起来，下面的资料是关于使用python3的base64编解码实现字符串的简易加密解密的内容。

import base64

copyright = 'Copyright (c) 2012 Doucube Inc. All rights reserved.'

def main():
    #转成bytes string
    bytesString = copyright.encode(encoding="utf-8")
    print(bytesString)

    #base64 编码
    encodestr = base64.b64encode(bytesString)
    print(encodestr)
    print(encodestr.decode())

    #解码
    decodestr = base64.b64decode(encodestr)
    print(decodestr.decode())

if __name__ == '__main__':
    main()

输出结果

>>> 
>>> 
b'Copyright (c) 2012 Doucube Inc. All rights reserved.'
b'Q29weXJpZ2h0IChjKSAyMDEyIERvdWN1YmUgSW5jLiBBbGwgcmlnaHRzIHJlc2VydmVkLg=='
Q29weXJpZ2h0IChjKSAyMDEyIERvdWN1YmUgSW5jLiBBbGwgcmlnaHRzIHJlc2VydmVkLg==
Copyright (c) 2012 Doucube Inc. All rights reserved.
>>>