题解 | #简单密码#

python3

dic = {'abc':'2','def':'3','ghi':'4','jkl':'5','mno':'6','pqrs':'7','tuv':'8','wxyz':'9'}
s = input()
res = []
for i in s:
    if i.isdigit():
        res.append(i)
        continue
    elif i.islower():
        for d in dic:
            if i in d:
                res.append(dic[d])
                break
    elif i.isupper():
        res.append(chr(ord(i.lower())+1) if i != 'Z' else 'a')
    else:
        res.append(i)
print(''.join(res))