#include <iostream>
using namespace std;
class study
{
public:
	int m_A;
	int m_B;




//通过成员函数重载
public:
	study operator+(study &p1)
	{
		study temp;
		temp.m_A = this->m_A + p1.m_A;
		temp.m_B = this->m_B + p1.m_B;
		return temp;
	}



};



//通过全局函数重载
study operator+(study& p5, study& p6)
{
	study temp;
	temp.m_A = p5.m_A + p6.m_A;
	temp.m_B = p5.m_B + p6.m_B;
	return temp;
}




void test01()
{
	study p2;
	p2.m_A = 10;
	p2.m_B = 10;
	study p3;
	p3.m_A = 20;
	p3.m_B = 20;
	study p4;
	p4 = p3 + p2;
	cout << "p4.m_A =" << p4.m_A << endl;
	cout << "p4.m_B =" << p4.m_B << endl;
}
int main()
{
	test01();
	system("pause");
	return 0;
}

成员函数重载与全局函数重载只需要一个就好，不能两个形式重载一个函数