题解 | #字符串加解密#

继续用string模块取处理，获取源位置和目的位置对应的元素，进行转化即可，加密就从源到目的，解密就是从目的到源。

同时使用while True取循环读取信息

from string import ascii_lowercase, ascii_uppercase, digits

source = list(ascii_lowercase + ascii_uppercase + digits)
target = list(ascii_uppercase[1:] + ascii_uppercase[0] + ascii_lowercase[1:] + ascii_lowercase[0] + digits[1:] + digits[0])

def encrypt(strings:str):
    result = ''
    for case in strings:
        if 'A' <= case <= 'z' or '0' <= case <= '9':
            result += target[source.index(case)]
        else:
            result += case
    return result

def decrypt(strings:str):
    result = ''
    for case in strings:
        if 'A' <= case <= 'z' or '0' <= case <= '9':
            result += source[target.index(case)]
        else:
            result += case
    return result


while True:
    try:
        print(encrypt(input()))
        print(decrypt(input()))
    except EOFError: break