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