使用Path描绘两个图形

代码

   <Grid>
        <StackPanel
            HorizontalAlignment="Center"
            VerticalAlignment="Center"
            Orientation="Horizontal">
            <Path Stroke="Blue" StrokeThickness="1">
                <Path.Data>
                    <PathGeometry>
                        <PathFigure StartPoint="0,0">
                            <PolyLineSegment Points="100,0 100,90 55,90 50,100 45,90 0,90 0,0" />
                        </PathFigure>
                    </PathGeometry>
                </Path.Data>
            </Path>
            <Path
                Margin="5"
                Stroke="Red"
                StrokeThickness="1">
                <Path.Data>
                    <PathGeometry>
                        <PathFigure StartPoint="5,0">
                            <LineSegment Point="95,0" />
                            <ArcSegment
                                Point="100,5"
                                Size="5,5"
                                SweepDirection="Clockwise" />
                            <LineSegment Point="100,85" />
                            <ArcSegment
                                Point="95,90"
                                Size="5,5"
                                SweepDirection="Clockwise" />
                            <PolyLineSegment Points="55,90 50,100 45,90 5,90" />
                            <ArcSegment
                                Point="0,85"
                                Size="5,5"
                                SweepDirection="Clockwise" />
                            <LineSegment Point="0,5" />
                            <ArcSegment
                                Point="5,0"
                                Size="5,5"
                                SweepDirection="Clockwise" />
                        </PathFigure>
                    </PathGeometry>
                </Path.Data>
            </Path>
        </StackPanel>
    </Grid>

效果