Cell 物件¶
"Cell" objects are used to implement variables referenced by multiple scopes. For each such variable, a cell object is created to store the value; the local variables of each stack frame that references the value contains a reference to the cells from outer scopes which also use that variable. When the value is accessed, the value contained in the cell is used instead of the cell object itself. This de-referencing of the cell object requires support from the generated byte-code; these are not automatically de-referenced when accessed. Cell objects are not likely to be useful elsewhere.
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PyCellObject
¶ C 結構的 cell 物件
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PyTypeObject
PyCell_Type
¶ 對應 cell 物件的物件型別。
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int
PyCell_Check
(ob)¶ 如果 ob 是一个 cell 对象则返回真值;ob 必须不为
NULL
。
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PyObject*
PyCell_New
(PyObject *ob)¶ - Return value: New reference.
创建并返回一个包含值 ob 的新 cell 对象。形参可以为
NULL
。
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PyObject*
PyCell_GET
(PyObject *cell)¶ - Return value: Borrowed reference.
返回 cell 对象 cell 的内容,但是不检测 cell 是否非
NULL
并且为一个 cell 对象。