[size=6][size=5][size=4][size=3]请问各位,这个程序哪里错了?这么总是该不对呢?[/size][/size][/size][/size]#include<afxwin.h>
class CHelloApp:public CWinApp
{
 public:
        virtual BOOL InitInstance();
};
CHelloApp theApp;
class CMainFrame:public CFrame Wnd
{
 public:
      CMainFrame()
      {
          Create(NULL,"我的窗口",WS_OVERLAPPEDWINDOW,CRect(0,0,400,300));
      }
 protected:
    axf_msg void OnLButtonDown(UINT nFlags,CPoint point);
    DECLARE_MESSAGE_MAP()
};
BEGIN_MESSAGE_MAP(CMainFrame,CFrameWnd)
      ON_WM_LBUTTONDOWN()
END_MESSAGE_MAP()
void CMainFrame::OnLButtonDown(UINT nFlags,CPoint point)
{
    MessageBox("你好，我的Visual C++世界!","问候",0);
    CFrameWnd::OnLButtonDown(nFlags,point);
}
BOOL CHelloApp::InitInstance()
{
    m_pMainWnd=new CMainFrame();
    m_pMainWnd->ShowWindow(m_nCmdShow);
    m_pMainWnd->UpdateWindow();
    return TRUE;
}