delphi 动态创建SaveDialog文件保存对话框

var

  aSaveDialog: TSaveDialog;

  aFileName, aStampTime: AnsiString;

begin

  aSaveDialog := TSaveDialog.Create(Self);

  try

    aSaveDialog.InitialDir := ExtractFilePath(ParamStr(0));

    aSaveDialog.DefaultExt := 'xls';

    aSaveDialog.Filter := 'Excel文件(*.xls)|*.xls|所有文件(*.*)|*.*';

    aStampTime := FormatDateTime('yyyymmddhhnnss', Now);

    aSaveDialog.FileName := aStampTime;

    if not aSaveDialog.Execute then

      Exit;

    aFileName := aSaveDialog.FileName;

    if aFileName = '' then

      Exit;

  finally

    aSaveDialog.Free;

  end;