【Leetcode】【Python】9. Palindrome Number实现

题目：

Determine whether an integer is a palindrome. Do this without extra space.

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思路：

将数字转化为字符串，头尾相互开始比较，直到结束或者匹配不成功。

实现：

class Solution(object):    def isPalindrome(self, x):        """        :type x: int        :rtype: bool        """        if x<0:            return False        x=str(x)        for i in range(len(x)//2):            if x[i]!=x[len(x)-i+1]:                return False        return True