UserControl:我可以在XAML中设置自己的DependencyProperty吗？

<UserControl x:Class="YourNamespace.YourUserControl"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:local="clr-namespace:YourNamespace">

    <UserControl.Resources>
        <Style TargetType="local:YourUserControl">
            <Setter Property="CustomProperty" Value="Default value" />
        </Style>
    </UserControl.Resources>

    <Grid>
        <!-- Your control's content here -->
    </Grid>
</UserControl>