.. _class_logic_boolean_compared: logic_boolean_compared ====================== **图块代码** .. image:: img/logic_boolean_compared.png ---- **javascript** .. code-block:: javascript ((left) op (right)) ---- **python** .. code-block:: python ((left) op (right)) ---- **npl** .. code-block:: lua ((left) op (right)) ---- 示例 ---- .. tabs:: .. tab:: javascript .. code-block:: javascript ((undefined) and (undefined)) .. tab:: python .. code-block:: python ((undefined) and (undefined)) .. tab:: npl .. code-block:: lua ((undefined) and (undefined))