[IfcSystemFurnitureElementType.PredefinedType property PredefinedType public IfcSystemFurnitureElementTypeEnum PredefinedType { get; set; } 也可以看看 enum IfcSystemFurnitureElementTypeEnum class IfcSystemFurnitureElementType 命名空间 Aspose.CAD.FileFormats.Ifc.IFC4.Entities 部件 Aspose.CAD]