Python 43rd day-third module assessment

Object-oriented:

Concept: Class, instantiation, object, instance

Property:

Public properties: Defined in class

Member properties: defined in method

Private properties: Restrict external access by using the __ property definition in a method

Method:

Common methods

Class method: @classmethod the name of the decorated class. Calling default Pass (CLS)

static method: @staticmethod decoration through the class name. Calls, which are not related to a class, are equivalent to a tool function in a class

Property method: @property decoration as a property call

Built-in Method: (Special method) __new__ trigger __init__ Create instance

__init__ Construction Method

The __call__ object is appended with parentheses to trigger execution

__DOC__ View description information for a class

__MODULE__ the currently manipulated object in that module

__class__ which class is created for the object currently being manipulated

__del__ destructor Method The current object is automatically executed when it is freed in memory

__dict__ viewing members in a class or object

__str__ If this method is defined in a class, the return value of the method is output by default when the object is printed

__GETITEM__ index Operations Get data

__setitem__ Setting Modification Data

__DELITEM__ Deleting data

__metaclass__ is used to define what form is created

　　

Python 43rd day-third module assessment