03.cpp

来自「教学目的： 要求理解继承的本质含义以及在面向对象技术中的重要性」· C++ 代码 · 共 42 行

#include<iostream.h>          
#include<string>

class Student
{
public:
	Student(char* pName="no name")
	{
		strcpy(name,pName);
	}
	void display()
	{
		cout<<"name= \""<<name<<"\""<<endl;
	}
protected:
	char name[40];

};
class GraduateStudent: public Student
{
public:
	GraduateStudent( char* pName="no name",double qGrade=90)
	{
		strcpy(name,pName);
		qualifierGrade=qGrade;
	}
	void display()
	{
		cout<<"name= \""<<name<<"\""<<endl
			<<"qualifierGrade="<<qualifierGrade<<endl;
	}
protected:
	int qualifierGrade;
};

void main()
{
	Student ds("Lo lee Undergrad");
	GraduateStudent gs;
	ds.display();
	gs.display();
}