void CBbView::OnPicture() { CString filename; CString defaultfilename=""; CString filepath; CString fileextention;//文件扩展名 CString filter;//文件过滤 filter="位图文件(*.bmp)|*.bmp|JPG文件(*.jpg)|*.jpg|所有文件(*.*)|*.*||"; fileextention=".bmp"; CFileDialog OpenDlg1(TRUE,fileextention,defaultfilename, OFN_HIDEREADONLY,filter);//true 为打开，false 为保存 if(OpenDlg1.DoModal () == IDCANCEL)