Update ClassificationPageBLL.cs

wxr

2024-09-12 22a724344cb747b8a6827e069d1857de59d2d970

 HDL-ON_iOS/ViewController.cs

@@ -22,11 +22,18 @@
            }
        }

        // 切换到竖屏模式
        public override UIInterfaceOrientationMask GetSupportedInterfaceOrientations()
        {
            return UIInterfaceOrientationMask.Portrait;
        }


        public override void ViewDidLoad()
        {
            base.ViewDidLoad();

            HDL_ON.MainPage.ShowAsync();
            HDL_ON.MainPage.Show();

            try
            {