p279 例9.7 对象的指针.cpp

谭浩强 《C++ 程序设计》第三版的部分课后练习题源码

#include<iostream>
using namespace std;
class Time
    {  public:
              Time(int=0,int=0,int=0);
              int hour;
              int minute;
              int second;
              void show_time(); 
     
        
          
     };

Time::Time(int a,int b,int c):hour(a),minute(b),second(c){}

void Time::show_time()
 {  
      cout<<hour<<": "<<minute<<": "<<second<<endl;                
                      
 }
 
 
 int main()
 {
    Time t1(10,23,45);
    int *p=&t1.hour;
    cout<<"hour: "<<*p;
    t1.show_time();
    Time *p1=&t1;
    p1->show_time();
    void (Time::*p2)();
    p2=&Time::show_time;
    (t1.*p2)();
    system("pause");
    return 0;
 }