运算符重载

红莲教主

#include <iostream>

//using namespace std ;

using std::cout;
using std::endl;
using std::ostream;

class Complex
{
public:
    Complex(int a , int b);
    ~Complex();
    Complex operator+(Complex com);
private:
    int a ;
    int b ;

friend ostream& operator<<(ostream& out ,Complex com );
friend Complex operator-(Complex c1 ,Complex c2);
};

ostream& operator<<(ostream& out ,Complex com );
Complex operator-(Complex c1 ,Complex c2);

// 构造函数
Complex::Complex(int a , int b)
{
    this->a = a ;
    this->b = b ;
}

//析构函数
Complex::~Complex()
{

}

//重载加号运算符
Complex Complex::operator+(Complex com)
{
    return Complex(a+com.a , b+com.b);
}
//重载减号预算福
Complex operator-(Complex c1 ,Complex c2)
{
    return Complex(c1.a-c2.a , c1.b-c2.b);
}
//重载<<运算符
ostream& operator<<(ostream& out ,Complex com )
{
    cout<<"("<<com.a<<","<<com.b<<")"<<endl;
    return out ;
}
int main()
{
    Complex A(100,200);
    Complex B(500,600);

    cout<<(A+B);

    Complex* C = new Complex(800,600);
    Complex* D = new Complex(400,200);

    cout<<(*C-*D);

    delete C ;
    delete D ;

    return 0;
}