用类来实现时间输入输出

#include 
     
      using namespace std;class Time{    public:        int hour;        int minute;        int sec;};void set_time(Time&t){     cin>>t.hour;    cin>>t.minute;    cin>>t.sec;}void show_time(Time&t){    cout<
      
       <<":"<
       
        <<":"<
        
         <
        
       
      
     

实参声明

#include 
     
      using namespace std;class Time{    public:        int hour;        int minute;        int sec;};void set_time(Time&t,int hour,int minute,int sec){     t.hour=hour;    t.minute=minute;    t.sec=sec;}void show_time(Time&t){    cout<
      
       <<":"<
       
        <<":"<
        
         <
        
       
      
     

标准类的方法

#include 
     
      using namespace std;class Time{    private:        int hour;        int minute;        int sec;    public:        void set_time(){            cin>>hour;            cin>>minute;m            cin>>sec;        }        void show_time(){            cout<
      
       <<":"<
       
        <<":"<
        
         <