.. index:: pair: class; QPanda::QubitReferenceInterface .. _doxid-class_q_panda_1_1_qubit_reference_interface: class QPanda::QubitReferenceInterface ===================================== .. toctree:: :hidden: :ref:`QubitReferenceInterface ` abstract class. .. ref-code-block:: cpp :class: doxyrest-overview-code-block #include class QubitReferenceInterface { public: // methods virtual std::shared_ptr<:ref:`CExpr`> :target:`getExprPtr`() = 0; }; // direct descendants class :ref:`QubitReference`;