判斷一個整數(shù)是否是回文數(shù)。回文數(shù)是指正序（從左向右）和倒序（從右向左）讀都是一樣的整數(shù)。

class Solution(object):
    def isPalindrome(self, x):
        new_num = 0 
        a = abs(x)
        while a != 0:
            temp = a%10
            new_num = new_num*10 + temp
            # 注意python中的除法和地板除
            a = a//10
         # 輸入等于輸出時成立
        if x >= 0 and x == new_num:
             return True
        else:
              return False