复数运算#include<iostream.h>

class Complex

{ public:

Complex( double r =0, double i =0 )

　　 Complex(int a) { Real = a Image = 0 }

void print() const

friend Complex operator+ ( const Complex & c1, const Complex & c2 )

friend Complex operator- ( const Complex & c1, const Complex & c2 )

friend Complex operator- ( const Complex & c )

private:

double Real, Image

} -Plural computing# Include