继承例题（一）公有继承

#include <iostream>
#include <string>
using namespace std;
class student
{
    public:
        student(int n,string nam,char s):num(n),name(nam),sex(s){}    
    protected: //保护
        int num;
        string name;
        char sex;
};
class student1 :public student
{
    public:
    student1(int n,string nam,char s,int a,string ad):student(n,nam,s)//构造函数
    {
        age=a;
        address=ad;
    }
    void show()const;    
    private:
        int age;
        string address;
};
void student1::show()const
{
    cout<<num<<" "<<name<<" "<<sex<<" "<<age<<" "<<address<<endl;
}
int main()
{
    student1 luo(10,"luotian",‘m‘,19,"shaoxing");
    luo.show();
    return 0;
}