601.cpp

C++实训教程

/*
	601.cpp
	Written By S.Y.Feng
	class C Overload using
*/

#include <iostream.h>
#include <math.h>
class C   //Complex
{
  private: float r,i;
  public:
	C (float rr=0, float ii = 0){r = rr; i = ii;}
	void Disp () 
	{
		if(i<0) cout << r << i << "i\n";
		else   cout << r << "+" << i << "i\n";
	}
	C operator+ (C& obj)
	{	
		C temp;
		temp.r = r + obj.r;
		temp.i = i + obj.i;
		return temp;
	}
};

main(void)
{
	C c1 (10.0,10.0);
	C c2 (-20.0,-20.0);
	C c3;
	c3 = c1 + c2;
	cout <<"c1 + c2 ->"; c3.Disp();
	c3 = c1.operator+(c2);
	cout <<"c1 + c2 ->"; c3.Disp();
	return 0;
}
/*
c1 + c2 ->-10-10i
c1 + c2 ->-10-10i

*/