十二周实验报告一

#include<iostream>
#include<string>
using namespace std;

class Student //（1）修改student类中各数据成员和成员函数的访问限定符，并观察发生的现象
{
public: 
	Student(int n,string nam,char s) ;
	void show();
	~Student( ){ } 
protected: 
	int num;
	string name;
	char sex ; 
};

class Student1: public Student //（2）修改此处的继承方式，并观察发生的现象
{
public: 
    Student1(int n,string nam,char s,int a,string ad);
	void show1( );
	~Student1( ){ } 
private: 
	int age; 
	string addr; 
};

Student::Student(int n,string nam,char s) 
{
	num=n;
	name=nam;
	sex=s; 
}
void Student::show()
{
	cout<<"num: "<<num<<endl;
	cout<<"name: "<<name<<endl;
	cout<<"sex: "<<sex<<endl<<endl;
}

Student1::Student1(int n,string nam,char s,int a,string ad):Student(n,nam,s) 
{	
	age=a; 
	addr=ad;
}
void Student1::show1( )
{	
	cout<<"num: "<<num<<endl;
	cout<<"name: "<<name<<endl;
	cout<<"sex: "<<sex<<endl;
	cout<<"age: "<<age<<endl;
	cout<<"address: "<<addr<<endl<<endl;
}

int main( )
{
	Student1 stud1(10010,"Wang-li",'f',19,"115 Beijing Road,Shanghai");
	Student1 stud2(10011,"Zhang-fun",'m',21,"213 Shanghai Road,Beijing");
	Student stud3(20010,"He-xin",'m');
	stud1.show1( ); 
	stud2.show( ); 
	stud3.show( );
	system ("pause");
	return 0;
	
}