WPF如何在水平堆叠面板中的每个项目下放置分隔符

<StackPanel Orientation="Horizontal">
    <Button Content="按钮1" />
    <<Separator VerticalAlignment="Center" Width="2" Background="Black" />
    <Button Content="按钮2" />
    <Separator VerticalAlignment="Center" Width="2" Background="Black" />
    <Button Content="按钮3" />
</StackPanel>

StackPanel stackPanel = new StackPanel();
stackPanel.Orientation = Orientation.Horizontal;

Button button1 = new Button();
button1.Content = "按钮1";
stackPanel.Children.Add(button1);

Separator separator1 = new Separator();
separator1.VerticalAlignment = VerticalAlignment.Center;
separator1.Width = 2;
separator1.Background = Brushes.Black;
stackPanel.Children.Add(separator1);

Button button2 = new Button();
button2.Content = "按钮2";
stackPanel.Children.Add(button2);

Separator separator2 = new Separator();
separator2.VerticalAlignment = VerticalAlignment.Center;
separator2.Width = 2;
separator2.Background = Brushes.Black;
stackPanel.Children.Add(separator2);

Button button3 = new Button();
button3.Content = "按钮3";
stackPanel.Children.Add(button3);