[求助]谁来讲一下下面的代码啊！
没有学习过mfc，但是现在却要用他来编程，现在自学中……下面的不懂，能讲一下不？！
#if !defined(AFX_DOOR_H__47722E0B_1D74_4AE2_A612_6A27C31DD502__INCLUDED_)
#define AFX_DOOR_H__47722E0B_1D74_4AE2_A612_6A27C31DD502__INCLUDED_
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#include "Object.h"
#include "DataTypes.h" // Added by ClassView
class Door : public Object
{
public:
virtual ObjectType GetObjectType();
Door();
virtual ~Door();
bool Init( int x_position, int y_position ,
float z_position, LPRECT obj_rtRect );
};
#endif // !defined(AFX_DOOR_H__47722E0B_1D74_4AE2_A612_6A27C31DD502__INCLUDED_)
