个人作业

#include <iostream>
using namespace std;
class Complex{
public:
 Complex(){real=0;imag=0;}
 Complex(double r,double i){real=r;imag=i;}
 Complex operator + (Complex &c2);
 void display();
private:
    double real;
 double imag;  
};
Complex Complex::operator + (Complex &c2)
{
 Complex c;
 c.real=real+c2.real;
 c.imag=imag+c2.imag;
 return c;
}
void Complex::display()
{
 cout << "(" << real << "," << imag << "i)" <<endl;
}
int main()
{
 Complex c1(1,2),c2(5,-8),c3;
 c3=c1+c2;
 cout << "c1=";c1.display();
 cout << "c2=";c2.display();
 cout <<"c1+c2=";c3.display();
 return 0;
}