题解 | #字符串加解密#
字符串加解密
http://www.nowcoder.com/practice/2aa32b378a024755a3f251e75cbf233a
def encrypt(s):
r = []
for i in s:
if i == 'z':
r.append('A')
elif i == 'Z':
r.append('a')
elif i == '9':
r.append('0')
elif i.islower():
ii = chr(ord(i) + 1).upper()
r.append(ii)
elif i.isupper():
ii = chr(ord(i) + 1).lower()
r.append(ii)
else:
r.append(str(int(i) + 1))
return "".join(r)
def decrypt(s):
r = []
for i in s:
if i == 'a':
r.append('Z')
elif i == 'A':
r.append('z')
elif i == '0':
r.append('9')
elif i.islower():
ii = chr(ord(i) - 1).upper()
r.append(ii)
elif i.isupper():
ii = chr(ord(i) - 1).lower()
r.append(ii)
else:
r.append(str(int(i) - 1))
return "".join(r)
print(encrypt(input()))
print(decrypt(input()))
