Complex plus(Complex a);//复数的加法
Complex minus(Complex a); //复数的减法
Complex plus(double r); //复数与实数相加
Complex minus(double r); //复数与实数相减
private:
double real;//复数实部
double img;//复数虚部
};
Complex::Complex(Complex &a)
{
real=a.real;
img=a.img;
}
Complex::Complex(double r,double i)
{
real=r;
img=i;
}
void Complex::display()
