diff --git a/demo/Semi.Avalonia.Demo.Desktop/App.axaml.cs b/demo/Semi.Avalonia.Demo.Desktop/App.axaml.cs
index b534e3f..d5fe94a 100644
--- a/demo/Semi.Avalonia.Demo.Desktop/App.axaml.cs
+++ b/demo/Semi.Avalonia.Demo.Desktop/App.axaml.cs
@@ -15,9 +15,9 @@ public partial class App : Application
     public override void OnFrameworkInitializationCompleted()
     {
         if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+        {
             desktop.MainWindow = new MainWindow();
-        else if (ApplicationLifetime is ISingleViewApplicationLifetime singleView)
-            singleView.MainView = new MainView();
+        }
         base.OnFrameworkInitializationCompleted();
     }
 }
\ No newline at end of file
diff --git a/demo/Semi.Avalonia.Demo.Desktop/Program.cs b/demo/Semi.Avalonia.Demo.Desktop/Program.cs
index 59b34db..e011c45 100644
--- a/demo/Semi.Avalonia.Demo.Desktop/Program.cs
+++ b/demo/Semi.Avalonia.Demo.Desktop/Program.cs
@@ -13,10 +13,8 @@ class Program
     // SynchronizationContext-reliant code before AppMain is called: things aren't initialized
     // yet and stuff might break.
     [STAThread]
-    public static void Main(string[] args)
-    {
-        var builder = BuildAvaloniaApp();
-        builder.With(new FontManagerOptions
+    public static void Main(string[] args) => BuildAvaloniaApp()
+        .With(new FontManagerOptions
         {
             FontFallbacks = new[]
             {
@@ -25,54 +23,8 @@ class Program
                     FontFamily = new FontFamily("Microsoft YaHei")
                 }
             }
-        });
-
-        //DRM启动步骤(Ubuntu18.04Server版本 虚拟机测试OK)
-        //官方文档：https://docs.avaloniaui.net/docs/next/guides/platforms/rpi/running-on-raspbian-lite-via-drm
-
-        //1.Linux端运行命令
-        //sudo apt update
-        //sudo apt upgrade
-        //sudo reboot
-        //sudo apt - get install libgbm1 libgl1 - mesa - dri libegl1 - mesa libinput10
-
-        //2.安装测试工具测试(出现一个彩色立方体说明环境安装完成)
-        //sudo apt-get install kmscube
-        //sudo kmscube
-
-        //3.添加StartLinuxDrm代码
-
-        //4.发布程序，复制到Linux系统(安装.net，怎么运行这些省略)
-        //发布文件不要裁剪，如果裁剪会报错
-        //Unhandled exception. Avalonia.Markup.Xaml.XamlLoadException: No precompiled XAML found for avares
-        //://Semi.Avalonia/Themes/Light/Light.axaml (baseUri: avares://Semi.Avalonia/Themes/Index.axaml), m
-        //ake sure to specify x:Class and include your XAML file as AvaloniaResource
-
-        //5.运行
-
-        //运行报错点：
-        //Unhandled exception. System.TypeInitializationException: The type initializer for 'SkiaSharp.SKImageInfo' threw an exception.
-        //--->System.DllNotFoundException: Unable to load shared library 'libSkiaSharp' or one of its dependencies.In order to help diagnose loading problems, consider setting the LD_DEBUG environment variable: liblibSkiaSharp: cannot open shared object file: No such file or directory
-        //at SkiaSharp.SkiaApi.sk_colortype_get_default_8888()
-        //at SkiaSharp.SKImageInfo..cctor()
-
-        //解决方法：
-        //Linux命令行安装一下 apt-get install -y libfontconfig1
-        //网址：https://github.com/mono/SkiaSharp/issues/509
-
-        if (args.Contains("--drm"))
-        {
-            SilenceConsole();
-            builder.StartLinuxDrm(args: args, card: "/dev/dri/card0", scaling: 1);
-        }
-        else
-        {
-            builder.StartWithClassicDesktopLifetime(args);
-        }
-    }
-
-
-
+        })
+        .StartWithClassicDesktopLifetime(args);
 
     // Avalonia configuration, don't remove; also used by visual designer.
     public static AppBuilder BuildAvaloniaApp()
@@ -81,15 +33,4 @@ class Program
             .UsePlatformDetect()
             .With(new Win32PlatformOptions())
             .LogToTrace();
-
-    private static void SilenceConsole()
-    {
-        new Thread(() =>
-        {
-            Console.CursorVisible = false;
-            while (true)
-                Console.ReadKey(true);
-        })
-        { IsBackground = true }.Start();
-    }
 }