题解 | #字符串加解密#
字符串加解密
https://www.nowcoder.com/practice/2aa32b378a024755a3f251e75cbf233a
s1 = input()
s2 = input()
upper = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
lower = 'abcdefghijklmnopqrstuvwxyz'
# 加密
s1_y = ""
for i in s1:
if i in upper:
if i == 'Z':
s1_y += 'a'
else:
index2 = upper.index(i)+1
s1_y += lower[index2]
elif i in lower:
if i == 'z':
s1_y += 'A'
else:
index1 = lower.index(i)+1
s1_y += upper[index1]
else:
if i == '9':
s1_y += '0'
else:
s1_y += str(int(i)+1)
#解密
s2_y = ""
for i in s2:
if i in upper:
if i == 'A':
s2_y += 'z'
else:
index2 = upper.index(i)-1
s2_y += lower[index2]
elif i in lower:
if i == 'a':
s2_y += 'Z'
else:
index1 = lower.index(i)-1
s2_y += upper[index1]
else:
if i == '0':
s2_y += '9'
else:
s2_y += str(int(i)-1)
print(s1_y)
print(s2_y)
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