题解 | 字符串加解密

import sys

s = list(map(str, input()))
t = list(map(str, input()))

# 字符串s的加密
s_encode = ''
for i in range(len(s)):
    if 'a' <= s[i] <= 'y':
        s_encode += chr(ord(s[i]) + 1).upper()
    elif 'A' <= s[i] <= 'Y':
        s_encode += chr(ord(s[i]) + 1).lower()
    elif s[i] == 'z':
        s_encode += 'A'
    elif s[i] == 'Z':
        s_encode += 'a'
    elif '0' <= s[i] <= '8':
        s_encode += chr(ord(s[i]) + 1)
    elif s[i] == '9':
        s_encode += '0'

# 字符串t的解密
t_decode = ''
for j in range(len(t)):
    if 'b' <= t[j] <= 'z':
        t_decode += chr(ord(t[j]) - 1).upper()
    elif 'B' <= t[j] <= 'Z':
        t_decode += chr(ord(t[j]) - 1).lower()
    elif t[j] == 'A':
        t_decode += 'z'
    elif t[j] == 'a':
        t_decode += 'Z'
    elif '1' <= t[j] <= '9':
        t_decode += chr(ord(t[j]) - 1)
    elif t[j] == '0':
        t_decode += '9'

print(s_encode)
print(t_decode)