[IfcWallType.PredefinedType property PredefinedType public IfcWallTypeEnum PredefinedType { get; set; } 也可以看看 enum IfcWallTypeEnum class IfcWallType 命名空间 Aspose.CAD.FileFormats.Ifc.IFC2X3.Entities 部件 Aspose.CAD]