题解 | 字符串变形
字符串变形
https://www.nowcoder.com/practice/c3120c1c1bc44ad986259c0cf0f0b80e
class Solution:
def trans(self, s: str, n: int):
if n == 0:
return s
res = ''
for i in s:
if i.isupper():
res += i.lower()
elif i.islower():
res += i.upper()
else:
res += i
temp=res.split(' ')
res=temp[::-1]
res=' '.join(res)
return res
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