[IfcTShapeProfileDef.WebSlope property WebSlope public IfcPlaneAngleMeasure WebSlope { get; set; } 也可以看看 class IfcPlaneAngleMeasure class IfcTShapeProfileDef 命名空间 Aspose.CAD.FileFormats.Ifc.IFC2X3.Entities 部件 Aspose.CAD]