frame_step02.txt

用什么语言能编制出好的程序

//*****************************************************
//		Step 2
//  Desc: 1) 组织Node类的各种子类的私有数据
//	  
//
//*****************************************************

#ifndef PICTURESH
#define PICTURESH

#include <iostream.h>
class Node;
//------------------------------------------------------
class Picture
{
public:
	Picture(char ** array,int wd, int ht);
	~Picture();
	Picture(const Picture& rhs);
	Picture& operator=(const Picture& rhs);
public:
	void Display() const;
	int  Width() const;
	int  Height() const;
private:
	Node *  pt;
};
//-------------------------------------------------------
class Node
{
public:
	Node();
	virtual ~Node()	{}
	virtual  void Display() const=0;
	virtual  int  Width()  const=0;
	virtual  int  Height() const=0;
};
//------------------------------------------------------
class DataPic:public Node
{
private:
	int	w;
	int	h;
	char *	data;
};
//------------------------------------------------------
class FramePic:public Node
{
private:
	Picture	kernel;
};
//------------------------------------------------------
class HCatPic:public Node
{
private:
	Picture		left;
	Picture		right;
};
//------------------------------------------------------
class VCatPic:public Node
{
private:
	Picture		top;
	Picture		bottom;
};

#endif