题解 | #简单密码#
简单密码
https://www.nowcoder.com/practice/7960b5038a2142a18e27e4c733855dac
使用正则表达式匹配小写字母a-z，大写字母A-Y。使用字典保存9键中包含字母的8键，来转换小写字母；通过ASCII码值转码解码来转换大写字母。代码如下
import re
done = {
'2': 'abc',
'3': 'def',
'4': 'ghi',
'5': 'jkl',
'6': 'mno',
'7': 'pqrs',
'8': 'tuv',
'9': 'wxyz',
}
pattern = re.compile(r'[a-z]')
pattern2 = re.compile(r'[A-Y]')
raw = input()
ripe = ''
for s in raw:
if re.match(pattern, s):
for d in done.keys():
if done.get(d).__contains__(s):
ripe += d
elif re.match(pattern2, s):
ripe += chr(ord(s.lower()) + 1)
elif s.__eq__('Z'):
ripe += 'a'
else:
ripe += s
print(ripe)
