题解 | #反转字符串#
反转字符串
http://www.nowcoder.com/practice/c3a6afee325e472386a1c4eb1ef987f3
#切片可太好用了,[开始:结束:步长]
class Solution:
def solve(self , str: str) -> str:
# write code here
if str=="":
return ""
else:
return str[::-1]
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