//这是头文件
#include <afxwin.h>
#include <afxext.h>
class CFileApp:public CWinApp
{
public:
virtual BOOL InitInstance();
};

class CFileWnd:public CFrameWnd
{
public:
afx_msg void OnPaint();
CPoint point[3];
int radius;
double angle;
CFileWnd();
afx_msg void OnTimer(UINT nIDEvent);
int GetRand(int nRand);
void OnShow();
DECLARE_MESSAGE_MAP();
};