一个小小的class

#include 
using namespace std;
class point
{
private:
    int score;
    string name;
public:
    point():score(0),name(""){}
    point(int s):score(s),name(""){}
    point(string n):score(0),name(n){}
    point(int s,string n):score(s),name(n){}
    int GetScore()
    {
        return score;
    }
    string GetName()
    {
        return  name;
    }
    void SetScore(int s)
    {
        score=s;
    }
    void SetName(string n)
    {
        name=n;
    }
    int operator+(point& p)
    {
        return score+p.score;
    }
    int operator-(point& p)
    {
        return max(score,p.score)-min(score,p.score);
    }
};
int main()
{
    point p(0,"po");
    point po(2);
    cout<