Question

编写一个c++程序，实现两个复数相加

Answer 1

先定义一个复数的类，里面包含复数的表示参数；然后定义一个运算符重载+，用这个+运算符实现两个复数的相加，实体部分 与虚部分分别计算

#include<iostream.h>
class Complex
{
private:
float Realpart;
float Imagepart;
public:
Complex::Complex(float r,float i) {Realpart=r; Imagepart=i;}

static void print(const Complex c1); const Complex operator+(const Complex& c1);//使用成员函数重载加号运算符
};
const Complex Complex::operator+(const Complex& c1)
{
Complex c(0,0);
c.Imagepart = Imagepart + c1.Imagepart;
c.Realpart = Realpart + c1.Realpart;
return c;
}
void Complex::print(const Complex c)
{
cout<<c.Realpart<< " "<<c.Imagepart<<endl;
}

void main()
{
Complex a(2,4);
Complex b(1,3);
Complex c(0,0);
c = a + b;
c.print(c);

}

Answer 2

#include <iostream>

using namespace std;

class Complex
{
public:
    Complex(double real = 0.0,double image = 0.0)
    {
        m_real = real; m_image = image;
    }

    Complex operator+(const Complex &c)
    {
        return Complex(this->m_real + c.m_real,this->m_image + c.m_image);
    }

    friend ostream &operator<<(ostream &os , const Complex &c)
    {
        os << c.m_real << " + " << c.m_image << "i";
        return os;
    }


    void print(Complex &c);


private:
    double m_real;
    double m_image;
};

int main()
{
    Complex a(1,2);
    Complex b(3,4);
    Complex c = a + b;
    cout << c <<endl;
    return 0;
}