一个简单的包含类的C++程序

#include <iostream>

using namespace std;

class student
{
private:
int num;
int score;

public:
void setdata()
{
cin>>num;
cin>>score;
}
void display()
{
cout<<"num="<<num<<endl;
cout<<"score"<<score<<endl;
}
};
student stud1,stud2;
int main()
{
stud1.setdata();
stud2.setdata();
stud1.display();
stud2.display();

return 0;
}