ex5_7_1.cpp

纯粹是学习专用～

#include <iostream.h>
#include <math.h>

class Complex{
	double	Real,Image ;
public :
    Complex(double r=0.0, double i=0.0):Real(r),Image(i){}//定义构造函数
    Complex(Complex &com){
		Real=com.Real ; Image=com.Image ;
	}//定义拷贝构造函数
	void  Print(){
		cout<<"Real="<<Real<<'\t'<<"Image="<<Image<<'\n';
	}
	friend Complex  operator+(const Complex &,const Complex &);
	void  operator+=(Complex);
	double  abs(void);
	friend Complex  operator*(const Complex &,const Complex &);
	friend Complex  operator/(const Complex &,const Complex &);
};
Complex operator+(const Complex & c1,const Complex & c2){
	return Complex(c1.Real+c2.Real,c1.Image+c2.Image);
}//隐式说明局部对象
void Complex::operator+=(Complex c){
	Real=Real+c.Real ;
	Image=Image+c.Image ;
}
double Complex::abs(void){
	return sqrt(Real*Real+Image*Image);
}
Complex operator*(const Complex & c1,const Complex & c2){
	return Complex(c1.Real*c2.Real-c1.Image*c2.Image ,c1.Real*c2.Image+c2.Real*c1.Image);
}
Complex operator/(const Complex & c1,const Complex & c2){
	double d=c2.Real*c2.Real+c2.Image*c2.Image ;
	return Complex((c1.Real*c2.Real+c1.Image*c2.Image)/d , (c1.Image*c2.Real-c1.Real*c2.Image)/d) ;
}

void main(void){
	Complex c1(1.0,1.0) , c2(2.0,2.0) , c3(4.0,4.0) , c;
	double d=0.5 ;
	c1.Print();
	c=c2+c3 ;
	c.Print() ;
	c+=c1 ;
	c.Print() ;
	c=c+d ;
	c.Print() ;
	c=d+c ;
	c.Print() ;
	c=c3*c2 ;
	c.Print() ;
	c=c3/c1 ;
	c.Print() ;
	c=c3*d;
	c.Print() ;
	c=c3/d;
	c.Print() ;
	cout<<"c3的模为："<<c3.abs()<<endl ;
}