demo_operator_08_1.cpp

对于一个初涉VC＋＋的人来书

//************************************************
// 类型转换函数
//************************************************

# include <iostream.h>

class Complex
{
public:
	Complex(){real=0;imag=0;}
    Complex(double r){real=r;imag=0;}
    Complex(double r,double i){real=r;imag=i;}
    friend Complex operator + (Complex c1,Complex c2);
    void display();
private:
	double real;
	double imag;
};
 
Complex operator + (Complex c1,Complex c2)
{
	return Complex(c1.real+c2.real, c1.imag+c2.imag);
}
   
void Complex::display()
{
	cout<<"("<<real<<"+"<<imag<<"i)"<<endl;
}

int main()
{
	Complex c1(3,4),c2(5,-10),c3;

	c3=c1+2.5;
//	c3=c1+Complex(2.5);
	c3.display();

	return 0;
}