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;
}