包含子对象的派生类的构造函数

#include <iostream>
#include <string.h>
/* run this program using the console pauser or add your own getch, system("pause") or input loop */
using namespace std;
class Student
{
    public:
        Student(int n,string nam)
        {
            num=n;
            name=nam;
        }
        void display()
        {
            cout<<"num:"<<num<<endl<<"name:"<<name<<endl;
        }
        protected:
            int num;
            string name;
};

class Student1:public Student
{
    public:
        Student1(int n,string nam,int n1,string nam1,int a ,string ad):
            Student(n,nam),monitor(n1,nam1){
                age=a;
                addr=ad;
            }
            void show()
            {
                cout<<"This student is:"<<endl;
                display();
                cout<<"age:"<<age<<endl;
                cout<<"address:"<<addr<<endl<<endl;
            }
            void show_monitor()
            {
                cout<<endl<<"Class monitor is:"<<endl;
                monitor.display();
            }
            private:
                Student monitor;
                int age;
                string addr;
};
int main(int argc, char** argv) {
    Student1 stud1(10010,"wang",10001,"li",19,"bj");
    stud1.show();
    stud1.show_monitor();
    return 0;
}