[IfcSurfaceStyle.Styles property 样式 public IfcCollection<IfcSurfaceStyleElementSelect> Styles { get; set; } 也可以看看 class IfcCollection<T> class IfcSurfaceStyleElementSelect class IfcSurfaceStyle 命名空间 Aspose.CAD.FileFormats.Ifc.IFC4.Entities 部件 Aspose.CAD]