如何将dir移出tmp

Question

它不会使用文件复制来移动目录，我不知道还能将目录和子目录移至应用程序吗？

[Code]

procedure InitializeWizard();
begin
    idpSetOption('Username', 'username');
    idpSetOption('Password', 'password;
    idpAddFtpDir('ftp://example.net/game', '', ExpandConstant('{tmp}\alpha'), true);

    idpDownloadAfter(wpReady);
end;

procedure CurStepChanged(CurStep: TSetupStep);
begin
    if CurStep = ssPostInstall then 
    begin
        // Copy downloaded files to application directory
        FileCopy(ExpandConstant('{tmp}\game'), ExpandConstant('{app}\game'), false);
    end;
end;