complex.h

vc运算符重载,能对不同对象进行+

#include<iostream.h>
#include<math.h>
class Complex
{   
private:
	double real;
	double imag;
public:
	friend Complex operator+(Complex c1,Complex c2);
	friend Complex operator-(Complex c1,Complex c2);
	friend Complex operator*(Complex c1,Complex c2);
	friend Complex operator/(Complex c1,Complex c2);
	friend ostream &operator<<(ostream&dest,Complex source);
	//Complex(){};
	Complex(double r1=0.0,double im=0.0);
	//int init(double r1,double im);
	void display();
	Complex &operator+=(Complex c2);
	Complex &operator*=(Complex c2);
	Complex &operator++();
	Complex operator++(int);
};