[IfcBooleanResult.Operator property 运算符 public IfcBooleanOperator Operator { get; set; } 也可以看看 enum IfcBooleanOperator class IfcBooleanResult 命名空间 Aspose.CAD.FileFormats.Ifc.IFC2X3.Entities 部件 Aspose.CAD]
