2023/5/6

多态性--运算符重载--实现复数类的加减运算

输入样例：  1 2 3 4 

输出样例： （4，6）

                    （-2，-2）

#include<iostream>
using namespace std;
class complex{
    private:
        double real;
        double imag;
    public:
        void display()
        {
            cout<<"("<<real<<","<<imag<<")"<<endl;
        }
        complex (double r=0.0,double i=0.0)
        {
            real=r;
            imag=i;
        }
        complex operator +(complex &c2);
        complex operator -(complex &c2);
};

      complex complex::operator +(complex &c2)
   {
       return complex(real+c2.real,imag+c2.imag);
           } 
           
     complex complex::operator -(complex &c2)   
   {
       return complex(real-c2.real,imag-c2.imag);
           }            
int main()
           
    {
        int x,y,m,n;
        cin>>x>>y>>m>>n;
        complex c1(x,y);
        complex c2(m,n);
        complex c3;
        complex c4;
        c3=c1+c2;
        c4=c1-c2;
        cout<<"c3=";
        c3.display();
        cout<<"c4=";
        c4.display();
    
    }