27 

    27 

    28 class QNetworkProxy;

    28 class QNetworkProxy;

    29 class QString;

    29 class QString;

    30 class QUrl;

    30 class QUrl;

    31 

    31 

    32 class DownloadEvent;

    33 class DownloadEvent;

    33 class DownloadManager;

    34 class DownloadManager;

    34 

    35 

    35 class DownloadController;

    36 class DownloadController;

    36 

    37