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