1. 题目
请编写一个函数,其功能是将输入的字符串反转过来。
2. 实例
输入:s = "hello" 返回:"olleh"
3. 解答
python3 118ms
class Solution: def reverseString(self, s): """ :type s: str :rtype: str """ s = list(s) s = self.reversed(s) s = ''.join(s) return s def reversed(self, slice): length = len(slice) last_num = math.ceil(length/2) for i in range(last_num): temp = slice[i] slice[i] = slice[length-1-i] slice[length-1-i] = temp return slice
4. 优答