'宣言
Public Class _ItemizedHierarchicalPointLegendItemDataModel Inherits _ItemizedPointLegendItemDataModel Implements IColorLegendItem, IItemizedLegendItemDataModel, IItemizedPointLegendItemDataModel, IQueryInterface, IStyleLegendItem
public class _ItemizedHierarchicalPointLegendItemDataModel : _ItemizedPointLegendItemDataModel, IColorLegendItem, IItemizedLegendItemDataModel, IItemizedPointLegendItemDataModel, IQueryInterface, IStyleLegendItem