'宣言 Public Class C1SuperscriptTool Inherits C1.WPF.RichTextBox.C1ToggleButtonTool(Of Nullable(Of C1VerticalAlignment)) Implements IUpdateableTool
public class C1SuperscriptTool : C1.WPF.RichTextBox.C1ToggleButtonTool<Nullable<C1VerticalAlignment>>, IUpdateableTool