小编mad*_*x60的帖子

一个直接的方法是

uint32_t diff = abs(num1 - num2);
bool isZeroOrOne = (diff == 0 || diff == 1);

或者简单地检查所有可能的情况：

int32_t diff = num1 - num2;
bool isZeroOrOne = (diff == 0 || diff == 1 || diff == -1);

有没有更优化的方法？