c++中怎样求复数相加

Answer 1

using namespace std;
class Complex
{
public:
    Complex(){real=0;imag=0;}
    Complex(double r,double i){real=r;imag=i;}
    friend Complex operator+(Complex &c1,Complex &c2);
    void display();
private:
    double real,imag;
};
Complex operator+(Complex &c1,Complex &c2)
{
    Complex c;
    c.real = c1.real+c2.real;
    c.imag = c1.imag+c2.imag;
    return c;
}
void Complex::display()
{
    cout << "("<<real<<","<<imag<<"i)"<<endl;
}
int main(void)
{
    Complex c1(5,1),c2(3,1),c3;
    c3=c1+c2;
    cout << "c1+c2=";
    c3.display();
    return 0;
}