1、  在String Table中加入一个新ID：ID_INDICATOR_COIN，Caption为“硬币数量”。

2、  在MainFrm.cpp中的静态数组indicator中将上面的ID加入：

static UINT indicators =

{

       ID_SEPARATOR,           //// status line indicator

       ID_INDICATOR_COIN,////显示硬币数量指示器

       ID_INDICATOR_CAPS,

       ID_INDICATOR_NUM,

       ID_INDICATOR_SCRL,

};

3、  修改OnDraw函数：

void CDrawCoinView::OnDraw(CDC* pDC)

{

       CDrawCoinDoc* pDoc = GetDocument();

       ASSERT_VALID(pDoc);

       // TODO: add draw code for native data here

       for(int i=0;i<pDoc->m_nCoins;i++)

       {

              int y=200-10*i;

              pDC->Ellipse(200,y,300,y-30);

              pDC->Ellipse(200,y-10,300,y-35);

       }

       CString strCoins;

       //先获得主窗口指针，再获得状态栏指针

       CStatusBar *pStatus=(CStatusBar *)AfxGetApp()->m_pMainWnd->GetDescendantWindow(ID_VIEW_STATUS_BAR);

       if(pStatus)

       {

              strCoins.Format("硬币：%d",pDoc->m_nCoins);

              pStatus->SetPaneText(1,strCoins);

       }

}