toast_mcl/MainWindow.axaml

<Window xmlns="https://github.com/avaloniaui"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
		xmlns:local="clr-namespace:toast_mcl;assembly=toast_mcl"
        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
        x:Class="toast_mcl.MainWindow"
        Title="toast_mcl">
	
	<Grid>
		<Grid.ColumnDefinitions>
			<ColumnDefinition Width="*" />
			<ColumnDefinition Width="Auto" />
		</Grid.ColumnDefinitions>
		
		<TabControl>
			<TabItem Header="主页">
				<ContentControl>
					<local:Home/>
				</ContentControl>
			</TabItem>
			<TabItem Header="下载">
				<ContentControl>
					<local:Downloads/>
				</ContentControl>
			</TabItem>
			<TabItem Header="设置">
				<ContentControl>
					<local:Settings/>
				</ContentControl>
			</TabItem>
			<TabItem Header="工具">
				<ContentControl>
					<local:Tools/>
				</ContentControl>
			</TabItem>
			
			<TabItem Header="关于">
				<ContentControl>
					<local:About/>
				</ContentControl>
			</TabItem>

		</TabControl>
	</Grid>
</Window>