/// <summary>
        ///
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private async void Sb_Authentication_Click(object sender, EventArgs e)
        {
            Sb_Authentication.Enabled = false;
            Sb_Cancel.Enabled         = true;
            Xtc_Tabs.Enabled          = false;
            var flag = false;

            try
            {
                var token = _cts.Token;
                while (!flag)
                {
                    await Task.Run(async() => { flag = await _api.Login(Cam_Camera.TakeSnapshot()); }, token);

                    if (!flag)
                    {
                        continue;
                    }
                    Cam_Camera.Stop();
                    ShowLoadForm();
                }
            }
            catch (Exception exception)
            {
                LogHelper.Error(exception.ToString());
            }
        }
 private void Sb_Cancel_Click(object sender, EventArgs e)
 {
     _cts.Token.Register(() => { XtraMessageBox.Show("已停止识别!"); });
     _cts.Cancel(true);
     Cam_Camera.Stop();
     Sb_Cancel.Enabled         = false;
     Sb_Authentication.Enabled = true;
     Xtc_Tabs.Enabled          = true;
 }