'宣言
Public Class _HierarchicalDataPointItemizedLegendDataModel Inherits _DataPointItemizedLegendDataModel Implements IColorLegend, IDataPointItemizedLegendDataModel, IItemizedLegendDataModel, ILegendDataModel, IQueryInterface, ISingleLegendDataModel
public class _HierarchicalDataPointItemizedLegendDataModel : _DataPointItemizedLegendDataModel, IColorLegend, IDataPointItemizedLegendDataModel, IItemizedLegendDataModel, ILegendDataModel, IQueryInterface, ISingleLegendDataModel