polygon.h

此文件可以能帮你求体积

// Polygon.h: interface for the Polygon class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_POLYGON_H__B53969F0_71F0_4068_8C0E_E46F62C49ACA__INCLUDED_)
#define AFX_POLYGON_H__B53969F0_71F0_4068_8C0E_E46F62C49ACA__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "Shape.h"

class Polygon : Shape
{
public:
	Polygon(){ Draw(); }
	virtual ~Polygon(){ Erase(); }

	void Draw() { cout << "Polygon::Draw()\n"; }
	void Erase() { cout << "Polygon::Erase()\n"; }
};

#endif // !defined(AFX_POLYGON_H__B53969F0_71F0_4068_8C0E_E46F62C49ACA__INCLUDED_)