C++派生类

#include <iostream>
using namespace std;
//基类
class Shape
{
public:
	void setWidth(int w)
	{
		width = w;
	}

	void setHeight(int h)
	{
		height = h;
	}

protected:
	int width;
	int height;
};

// 派生类
class Rectangle:public Shape
{
public:
	int getArea()
	{
		return (width*height);
	}
};

int main(void)
{
	Rectangle Rect;
	Rect.setWidth(5);
	Rect.setHeight(7);

	cout << Rect.getArea() << endl;

	system("pause");

	return 0;
}