重载自增运算符，自增自减运算符详解

#include

#include

#include

using namespace std;

#include

class Point

{

private:

?int m_nX;

?int m_nY;

public:

?Point()

?{

??this->m_nX = 0;

??this->m_nY = 0;

?}

?Point(int x, int y)

?{

??this->m_nX = x;

??this->m_nY = y;

?}

?void ShowPoint()

?{

??cout