6.WrapPanel面板和DockPanel面板

<WrapPanel Margin="3">
    <Button VerticalAlignment="Top" Width="100">1</Button>
    <Button MinHeight="60">2</Button>
    <Button VerticalAlignment="Bottom" Width="100">3</Button>
    <Button Width="100">4</Button>
    <Button VerticalAlignment="Center" Width="100">5</Button>
</WrapPanel>

<DockPanel>
        <Button DockPanel.Dock="Top">Top</Button>
        <Button DockPanel.Dock="Bottom">Bottom</Button>
        <Button DockPanel.Dock="Left">Left</Button>
        <Button DockPanel.Dock="Right">Right</Button>
        <Button>center</Button>
    </DockPanel>

<DockPanel>
    <StackPanel DockPanel.Dock="Bottom" HorizontalAlignment="Right" Orientation="Horizontal">
        <Button Width="60" Height="30" Margin="5,0">OK</Button>
        <Button Width="60" Height="30">Cancel</Button>
    </StackPanel>
    <TextBox DockPanel.Dock="Top" Margin="5">This is a test.</TextBox>
</DockPanel>