简练却很巧妙的一道题 [题目地址](https://leetcode.cn/problems/reverse-integer/description/) ```go func reverse(x int) int { var ans int for x != 0{ if tmp := int32(ans); tmp*10/10 != tmp{ return 0 } ans = ans * 10 + x % 10 x = x / 10 } return ans } ```