python中实现字符串翻转的方法

具体代码如下所示: #字符串反转 def reverse (s): rt = '' for i in range(len(s)-1,-1,-1): rt += s[i] return rt def reverse2 (s): li = list(s) li.reverse() rt = "".join(li) return rt def reverse3 (s): return s[::-1] def reverse4 (s): return "".join(reversed(s)) from functools import reduce def