private async Task ReleaseLightModuleAsync()
{
await LightModule.StopAsync();
LightModule.Dispose();
LightModule = null;
}
/// <summary>
/// 开启模拟灯光
/// </summary>
/// <param name="group"></param>
/// <returns></returns>
private async Task StartLightAsync(string group)
{
if (LightExamItem != null && LightExamItem.State == ExamItemState.Progressing)
{
await LightModule.StopAsync();
}
await LightModule.StartAsync(new ExamContext { ExamGroup = group });
}