简单记录一下:
<Rectangle Stroke="#3C81F2" Height="397"Width="571"StrokeThickness="1.5"
StrokeDashArray="10 5" SnapsToDevicePixels="True" RadiusX="10" RadiusY="10"/>
<Rectangle Stroke="Black" Height="199" Width="365" StrokeThickness="1.5"
StrokeDashArray="5 5" SnapsToDevicePixels="True" RadiusX="2" RadiusY="2"/>
效果如下: