'宣言 Public MustInherit Class RtfBookmark Inherits RtfObject Implements C1.C1Word.IContent, C1.C1Word.IDocumentContent, C1.C1Word.IParagraphContent
public abstract class RtfBookmark : RtfObject, C1.C1Word.IContent, C1.C1Word.IDocumentContent, C1.C1Word.IParagraphContent