Question

请编写一个类Complex,定义复数的加法、减法、乘法和除法运算,要求在编写该类时重载这些运算操作符,并重载I/O操作符

Answer 1

#include

using namespace std;

class Complex

{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();

private:

double real;

double imag;

};

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-imag*c2.imag;

c.imag=imag*c2.real+real*c2.imag;

return c;}

Complex Complex::operator/(Complex &c2)

{Complex c;

c.real=(real*c2.real+imag*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag);

c.imag=(imag*c2.real-real*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag);

return c;}

void Complex::display()

{cout