BorderBrush="{TemplateBinding BorderBrush}" Background="{TemplateBinding Background}" CornerRadius="3" BorderThickness="0" Margin="0,0,-0.2,0" SnapsToDevicePixels="true"> Data="{StaticResource DownArrowGeometry}" Fill="Black" HorizontalAlignment="Center" Margin="1,1,0,0" VerticalAlignment="Center"/>
你拿一个变量 记录一下 初始值 就可以啊。。。想恢复的时候 就拿初始值 去替换啊~