深入理解Python之数据模型

Posted on 2017-04-03 Views:

python提供了很多特殊的方法

种类	方法名称
字符串/字节表示	`__repr__`, `__str__`, `__format__`, `__bytes`
数值转换	`__abs__`, `__bool__`, `__complex`, `__int__`, `__float__`, `__hash__`, `__index__`
模拟集合	`__len__`, `__getitem__`, `__setitem__`, `__delitem`, `__contains__`
迭代器	`__iter__`, `__reversed__`, `__next__`
模拟调用	`__call__`
上下文管理	`__enter__`, `__exit__`
实例创建和销毁	`__new__`, `__init__`, `__del__`
属性管理	`__getattr__`, `__getattribute__`, `__setattr__`, `__delattr__`, `__dir__`
属性描述器	`__get__`, `__set__`, `__delete__`
类服务	`__prepare__`, `__instancecheck__`, `__subclasscheck__`

种类	方法名和相关操作符
一元数值操作符	`__neg__`-, `__pos__`+, `__abs__`()
比较操作符	`__lt__`<, `__le__`<=, `__eq__`=, `__ne__`!=, `__gt__`>, `__ge__`>=
算术操作符	`__add__`+, `__sub__`-, `__mul__`, `__truediv__`/, `__floordiv__`//, `__mod__`%, `__divmod__ divmod()`, `__pow__ *或者(pow())`, `__round__ round()`
反向算术操作符	`__radd__`, `__rsub__`, `__rmul__`, `__rtruediv__`, `__rfloordiv__`, `__rmod__`, `__rdivmod__`, `__rpow__`
自操作符	`_iadd__`, `__isub__`, `__imul__`, `__itruediv__`, `__ifloordiv__`, `__imod__`, `__ipow__`
位操作符	`__invert__`~, `__lshift__`<<, `__rshift__`>>, `__and__`&, `__or__`
反向位操作符	`__rlshift__`, `__rrshift__`, `__rand__`, `__rxor__`, `__ror__`
自增位操作符	`__ilshift__`, `__irshift__`, `__iand__`, `__ixor__`, `__ior__`