题解 | #字符串反转#
字符串反转
https://www.nowcoder.com/practice/e45e078701ab4e4cb49393ae30f1bb04
存
while True:
try:
str = input()
if len(str) > 1000:
raise Warning
if not str.isalpha:
raise Warning
if not str.islower:
raise Warning
print(str[::-1])
except:
break
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