'宣言
Public Class _SankeyDropOffView Inherits _SankeyXyFlowView Implements IAnimationView, IBoundRectangle, IHoverView, IIdentityView, IModel, IPointModel, IPointView, IQueryInterface, IQueryShowTooltipModel, ISankeyFlowModel, ISankeyFlowView, ISankeyXyFlowView, ISelectingView, IShapeModel, IShowTooltipModel, IView, IViewModel
public class _SankeyDropOffView : _SankeyXyFlowView, IAnimationView, IBoundRectangle, IHoverView, IIdentityView, IModel, IPointModel, IPointView, IQueryInterface, IQueryShowTooltipModel, ISankeyFlowModel, ISankeyFlowView, ISankeyXyFlowView, ISelectingView, IShapeModel, IShowTooltipModel, IView, IViewModel