c++ day4

>运算符

 

#include <iostream>
using namespace std;

class Person
{
    friend bool operator>(const Person &L,const Person &R);
    int a;
    int b;
public:
    Person()
    {}
    Person(int a,int b):a(a),b(b)
    {}
    ~Person()
    {}
  /*bool operator>(const Person &L,const Person &R)
    {
        if(a > R.a && b >R.b)
            return 1;
        else
            return 0;
    }*/
    void show()
    {
        cout << a <<" " <<b <<endl;
    }
};

bool operator>(const Person &L,const Person &R)
{
    if(L.a > R.a && L.b >R.b)
        return 1;
    else
        return 0;
}

int main()
{
    Person p1(1,2);
    Person p2(3,4);
    p1.show();
    p2.show();
    if(p1>p2)
        cout << "p1>p2" <<endl;
    if(p2>p1)
        cout << "p2>p1" <<endl;
    return 0;
}

思维导图：