3、类的对象和成员函数的指针

#include <iostream>
using namespace std;

class time
{
public:
    int x, y;
    time(int a, int b);
    void get();
    ~time();
};

time::time(int a, int b)
{
    x = a; y = b;
}

time::~time()
{
    cout<<"析构函数"<<endl;
}

void time::get()
{
    cout<<"x = "<<x<<", "<<"y = "<<y<<endl;
}

int main()
{
    time t1(11, 22);
    t1.get();

    int *p1 = &t1.x;
    cout<<"*p1 = "<<*p1<<endl;

    time *p2 = &t1;
    p2->get();

void (time::*p3)( ); //定义指向Time类公用成员函数的指针变量p3
p3=&(time::get); //使p3指向Time类公用成员函数get
(t1.*p3)( ); //调用对象t1中p3所指的成员函数(即t1.get( ))

    return 0;
}