<UserControl x:Class="SilverlightClock.MainPage"    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"    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"    mc:Ignorable="d"    Height="400" Width="400">    <Grid x:Name="LayoutRoot" Loaded="SetAndStartClock">        <!-- 时钟的阴影 -->        <Ellipse Fill="#FF000000" Height="330" Margin="42,42,28,28"           Opacity="0.3" Width="330" />        <!-- 时钟的外边缘 -->        <Ellipse Height="330" Margin="35,35,35,35" Stroke="#FF000000" Width="330" >            <Ellipse.Fill>                <LinearGradientBrush EndPoint="0.84,0.87" StartPoint="0.164,0.129">                    <GradientStop Color="#FFE4E5F4" />                    <GradientStop Color="#FFC0C0C0" Offset="0.254"/>                </LinearGradientBrush>            </Ellipse.Fill>        </Ellipse>        <!-- 时钟的斜边 -->        <Ellipse Height="290" Margin="55,55,55,55" Width="290" Stroke="#FF000000">            <Ellipse.Fill>                <LinearGradientBrush EndPoint="0.84,0.87" StartPoint="0.164,0.129">                    <GradientStop Color="#FF2F2F32"/>                    <GradientStop Color="#FFE4E5F4" Offset="0.987"/>                </LinearGradientBrush>            </Ellipse.Fill>        </Ellipse>        <!-- 时钟的表盘 -->        <Ellipse Fill="#FF000000" Height="270" Margin="65,65,65,65"   Stroke="#FF000000" Width="270" />        <!-- 时钟的中心椭圆 -->        <Ellipse Fill="#FF000000" Height="30" Margin="185,185,185,185"   Stroke="#FF008000" StrokeThickness="8" VerticalAlignment="Top"   Width="30" />        <!-- 秒针 -->        <Rectangle x:Name="secondHand" Fill="#FFFF0000" Height="80"   Margin="198,90,197,0"  RenderTransformOrigin="0.45,1.34"   Stroke="#FF000000" VerticalAlignment="Top" Width="5" >            <Rectangle.RenderTransform>                <RotateTransform x:Name="secondHandTransform"/>            </Rectangle.RenderTransform>        </Rectangle>        <!-- 分针 -->        <Rectangle x:Name="minuteHand" Fill="#FF008000" Height="80"   Margin="196,90,195,0" RenderTransformOrigin="0.45,1.34"   Stroke="#FF008000" VerticalAlignment="Top" Width="9" >            <Rectangle.RenderTransform>                <RotateTransform x:Name="minuteHandTransform"/>            </Rectangle.RenderTransform>        </Rectangle>        <!-- 时针 -->        <Rectangle x:Name="hourHand" Fill="#FF008000" Height="60"   Margin="195,110,194,0" RenderTransformOrigin="0.45,1.45"   Stroke="#FF008000" VerticalAlignment="Top" Width="11" >            <Rectangle.RenderTransform>                <RotateTransform x:Name="hourHandTransform"/>            </Rectangle.RenderTransform>        </Rectangle>    </Grid>    <!--时钟指针动画-->    <UserControl.Resources>        <Storyboard x:Name="clockStoryboard">            <!--时针动作-->            <DoubleAnimation x:Name="hourAnimation"           Storyboard.TargetName="hourHandTransform"           Storyboard.TargetProperty="Angle"           Duration="12:0:0" RepeatBehavior="Forever" To="360" />            <!--分针动作-->            <DoubleAnimation x:Name="minuteAnimation"           Storyboard.TargetName="minuteHandTransform"           Storyboard.TargetProperty="Angle"           Duration="1:0:0" RepeatBehavior="Forever" To="360" />            <!--秒针动作-->            <DoubleAnimation x:Name="secondAnimation"           Storyboard.TargetName="secondHandTransform"           Storyboard.TargetProperty="Angle"           Duration="0:1:0" RepeatBehavior="Forever" To="360" />        </Storyboard>    </UserControl.Resources></UserControl>