proj10_06.cpp

C++程序设计教程的全部源代码 包含与教程同步的PPT 方便学习

#include <iostream.h>
class base
{
protected:
	int a;
public:
	base(){a = 0;}
	base(int c){a = c;}
	void display_base()
	{cout << "in base a = " << a << endl;}
};
class derived:public base
{
public:
	derived() : base(){}
	derived(int c) : base( c ){}
};
void main()
{
	derived obj1(10);
	obj1.display_base();
}