题解 | 字符串加解密

import sys

encode = input() #加密
decode = input()

type_encode = 1
type_decode = -1

def deel_code(strs, type_kind):
    ret = ''
    
    for i in strs:
        if i.isalpha():
            if i.isupper():
                ret += chr((ord(i.lower()) + type_kind - ord('a')) % 26 + ord('a'))
            else:
                ret += chr((ord(i.upper()) + type_kind - ord('A')) % 26 + ord('A'))
        if i.isdigit():
            ret += str((int(i) + type_kind) % 10)
    return ret
    
print(deel_code(encode, type_encode))
print(deel_code(decode, type_decode))