private void x_ExceptionOccurrs(HttpWebClient Sender, ExceptionEventArgs e)
        {
            System.Console.WriteLine(e.Exception.Message);
            //发生异常重新下载相当于断点续传,你可以自己自行选择处理方式
            HttpWebClient x = new HttpWebClient();

            x.DownloadFileChunk(this._F, this._f, e.DownloadState.Position, e.DownloadState.Length);
            e.ExceptionAction = ExceptionActions.Ignore;
        }
 private void x_ExceptionOccurrs(HttpWebClient Sender, ExceptionEventArgs e)
 {
     System.Console.WriteLine(e.Exception.Message);
     //发生异常重新下载相当于断点续传,你可以自己自行选择处理方式
     HttpWebClient x = new HttpWebClient();
     x.DownloadFileChunk(this._F, this._f, e.DownloadState.Position, e.DownloadState.Length);
     e.ExceptionAction = ExceptionActions.Ignore;
 }