加号运算符重载
1、成员函数重载+号
#include<iostream>
using namespace std;
class Person
{
public:
Person operator+(Person &p)
{
Person temp;
temp.m_A=this->m_A+p.m_A;
temp.m_B=this->m_B+p.m_B;
return temp;
}
int m_A;
int m_B;
};
void test01()
{
Person p1;
p1.m_A=10;
p1.m_B=10;
Person p2;
p2.m_A=10;
p2.m_B=10;
Person p3=p1+p2;
cout<<"p3.m_A= "<<p3.m_A<<endl;
cout<<"p3.m_B= "<<p3.m_B<<endl;
}
int main()
{
test01();
return 0;
}
2、全局函数重载+号
#include<iostream>
using namespace std;
class Person
{
public:
int m_A;
int m_B;
};
Person operator+(Person &p1,Person &p2)
{
Person temp;
temp.m_A=p1.m_A+p2.m_A;
temp.m_B=p1.m_B+p2.m_B;
return temp;
}
void test01()
{
Person p1;
p1.m_A=10;
p1.m_B=10;
Person p2;
p2.m_A=10;
p2.m_B=10;
Person p3=p1+p2;
cout<<"p3.m_A= "<<p3.m_A<<endl;
cout<<"p3.m_B= "<<p3.m_B<<endl;
}
int main()
{
test01();
return 0;
}
3、运算符重载,也可以发生函数重载
#include<iostream>
using namespace std;
class Person
{
public:
int m_A;
int m_B;
};
Person operator+(Person &p1,int num)
{
Person temp;
temp.m_A=p1.m_A+num;
temp.m_B=p1.m_B+num;
return temp;
}
void test01()
{
Person p1;
p1.m_A=10;
p1.m_B=10;
Person p3=p1+20;
cout<<"p3.m_A= "<<p3.m_A<<endl;
cout<<"p3.m_B= "<<p3.m_B<<endl;
}
int main()
{
test01();
return 0;
}