指向类成员函数的指针

#include <iostream>
using namespace std;
class Time
{public:
Time(int,int,int);
int hour;
int minute;
int sec;
void get_time();
};
Time::Time(int h,int m,int s)
{hour=h;
minute=m;
sec=s;
}
void Time::get_time()
{cout<<hour<<":"<<minute<<":"<<sec<<endl;}

int main()
{Time t1(10,13,56);
int *p1=&t1.hour;
cout<<*p1<<endl;
t1.get_time();
Time *p2=&t1;
p2->get_time();
void (Time::*p3)();
p3=&Time::get_time;
(t1.*p3)();
return 0;
}