proj11_04.cpp

来自「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」· C++ 代码 · 共 27 行

#include <iostream.h>
class x
{
protected:	int a;
public:	x(){a = 10;}
};
class x1:public x
{
public:	x1(){cout << "x1  " << a << "\n";}
};
class x2:public x
{
public:	x2(){cout << "x2  " << a << "\n";}
};
class y : public x1 , public x2
{
public:
	y()
	{
		cout << x1::a << "\n";
		cout << x2::a << "\n";
	}
};
void main()
{
	y obj;
}