c++ 類的學習2

#include<iostream>#include<stdlib.h>#include<string>using namespace std;class Time{  public:     void set_time(); //公有成員函數，聲明函數      void show_time();//公有成員函數，聲明函數      private:        int hour;        int minute;        int sec;};int main( ){    Time t1,t2;    t1.set_time();     t1.show_time();    t2.set_time();    t2.show_time();    system("pause");    return 0;}void Time::set_time( ){    cin>>hour>>minute>>sec;}void Time::show_time(){    cout<<hour<<":"<<minute<<":"<<sec<<endl;}

#include<iostream>#include<string>#include<stdlib.h>using namespace std;class student{ public:     void display()    {     cout<<"num:"<<num<<endl;     cout<<"name:"<<name<<endl;     cout<<"sex:"<<sex<<endl;    }    void set( )    {     cin>>num;     cin>>name;     getchar();     cin>>sex;    }    private:        int num;        char name[20];        char sex;}stud1,stud2;int main() {  stud1.set();  stud1.display();  system("pause");  return 0;}