[IfcPresentationLayerWithStyle.LayerFrozen property LayerFrozen public IfcLogical LayerFrozen { get; set; } 也可以看看 class IfcLogical class IfcPresentationLayerWithStyle 命名空间 Aspose.CAD.FileFormats.Ifc.IFC4.Entities 部件 Aspose.CAD]