第八周项目零（4）：阅读程序：运算符重载

#include<iostream>
using namespace std;
class Pair
{
    int m;
    int n;
public:
    Pair(int i, int j):m(i),n(j) {}
    bool operator >(Pair p) const;
};
bool Pair::operator>(Pair p)const
{
    if (m!=p.m)
        return m>p.m;
    return n>p.n;
}
int main()
{
    Pair p1(3,4),p2(4,3), p3(4,5);
    cout<<(p1>p2)<<(p2>p1)<<(p2>p3)<<(p3>p2);
    return 0;
}