'宣言
Public Class _PositionTextAnnotation Inherits _PositionRectangleAnnotation Implements IAnnotation, IAnnotationPosition, IBoxBounded, IQueryInterface, IRotatableAnnotation
public class _PositionTextAnnotation : _PositionRectangleAnnotation, IAnnotation, IAnnotationPosition, IBoxBounded, IQueryInterface, IRotatableAnnotation