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