C++ 求复数 重载+-*/

#include<iostream>
using namespace std;
class complex
{
private:
	double real;
	double imag;
public:
	complex(){real=0;imag=0;}
	complex(double r,double i)
	{
		real=r;imag=i;
	}
	complex operator +(complex &c2);
	complex operator -(complex &c2);
	complex operator *(complex &c2);
	complex operator /(complex &c2);
	void display();

};
complex complex::operator + (complex &c2)
{
	complex c;
	c.real=real+c2.real;
	c.imag=imag+c2.imag;
	return c;
}
complex complex::operator - (complex &c2)
{
	complex c;
	c.real=real-c2.real;
	c.imag=imag-c2.imag;
	return c;
}
complex complex::operator * (complex &c2)
{
	complex c;
	c.real=real*c2.real;
	c.imag=imag*c2.imag;
	return c;
}
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<<endl;
}
int main()
{
	complex c1(3,4),c2(5,-10),c3;
	c3=c1+c2;
	c3.display();

	c3=c1-c2;
	c3.display();

	c3=c1*c2;
	c3.display();

	c3=c1/c2;
	c3.display();
	return 0;
}