首先是构造函数，重载

#include <iostream>

#include <cstdio>

#include <cstring>

#include <string>

#define maxn 65540

using namespace std;

struct Node

{

    int x,y;

    Node (int x = 0,int y = 0):x(x),y(y) {}   //构造函数

};

Node operator + (const Node& a,const Node& b)

{

    return Node(a.x+b.x,a.y+b.y);

}

ostream& operator << (ostream &out,const Node& p)  //重载流输出方式

{

    out<<"("<<p.x<<","<<p.y<<")";

    return out;

}

int main()

{

    Node a,b(1,2);

    Node c = a+b;

    cout<<a+b<<endl;;

}