void CShowDlg::OnDeleteRecord()
{
    // TODO: Add your control notification handler code here

    int nIndex = m_recordArea.GetCurSel();
   
    CString strRecord;

    strRecord.Format("%d", nIndex+1);

    m_recordArea.DeleteString(nIndex);

    m_recordArea.InsertString(nIndex, strRecord);

    m_recordArea.SetCurSel(nIndex);
   
}
尤其是那个Format那句到底是什么意思？？？  万分感谢