[Leetcode，python] Reverse String 反转字符串

问题描述：

Write a function that takes a string as input and returns the string reversed.

Example:
Given s = "hello", return "olleh".

解决方案：

class Solution(object):
    def reverseString(self, s):
        """
        :type s: str
        :rtype: str
        """
        return s[::-1]