Go to: https://mozillazg.com/2016/12/python-super-is-not-as-simple-as-you-thought.htmlWhen it comes to super, you may find it simple, not just to call the parent method. If it is so simple, then there will not be this article, and listen to me carefully. ConventionsBefore you begin, let's make an appointment with the Python version that this article uses. The default is Python 3, which means that the classe
This example describes the Super keyword usage in python. Share to everyone for your reference. The specific analysis is as follows:
In the Python class method, you call a method of the parent class, which, before Python 2.2, is typically written like code Snippet 1:
Code Snippet 1:
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1 2 3 4, 5 6 7 8 9 10 11 12 13 14 15
Class A:def __init__ (self): print "Enter a" print "Leave A" class B (a): Def __init__ (self): print "Enter B" a
1. How to use SuperWhen I started to use super with the example code, I thought it was simple, just like the super in the language of other single-inheritance mechanisms. However, when you try to mix things like bound Super object, with Unbound super Object,metaclass,proxy Object,descriptor,mro,multiple inheritance Thi
Real-time style conversion and super-resolution reconstruction based on perceptual loss function
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From: Real-time style conversion and super-resolution reconstruction based on perceptual loss function (Zhwhong)Abstract
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The super keyword can be used when a Python subclass calls a parent class member. during initialization, pay attention to the differences between super () and _ init, next we will go into the usage of the super keyword in Python Programming: there are not many definitions about super in the official document, the gener
Tag:ar use spjavaon data divbs code 1. Subclass constructors If you want to refer to super, you must put super in the first place of the function. class Base {base () {system.out.println ("base"); } }public class Checket extends Base {checket () {super ();//Call the constructor of the parent class, be sure to put it in the first statement of the method system.ou
The definition of super in official documents is not so much, it basically means that returning a proxy object allows you to invoke some inherited methods, and the mechanism of lookup follows the MRO rules, the most common of which is shown in the following example:
Class C (B): def method (self, arg): super (C, Self). Method (ARG)
Subclass C Overrides a method of the same name in the parent class B,
Summary
The navigation menu is not necessarily a simple collection of text links, which enriches the level of navigation information and even the hierarchy of the entire site's content. Because the general Pull-down menu has a lot of usability problems, prompting mega Drop-down menu came into being, because this kind of menu is really cow x, so I call it Super Pull-down menu. The related test proves that the Supe
In-depth analysis of the usage of the super keyword in Python programming, pythonsuper
There are not many definitions about super in the official document. It generally means that a proxy object is returned so that you can call some inherited methods. The search mechanism follows the mro rules, the following example shows the most common scenarios:
class C(B): def method(self, arg):
The super function is used to solve diamond inheritance.First, the inheritance of Python and the invocation of the parent class memberParent class:class Base (object): def __init__ (self): print ("base init". ")Normal method calls the parent class:class Leaf (Base): def __init__ (self): base.__init__ (self) print ("Leaf init. ")The Super method calls the parent class:class Leaf (B
LavaDate: 2007-03-01MSN:[email protected]Disclaimer: Original works, Unauthorized, declined reprint!for a long time did not summarize the knowledge learned, found a lot of unfamiliar, in order to consolidate the foundation, on the knowledge to do a systematic summary, if there is not perfect or incorrect place, also ask you to broaden the speech, common progress! java keyword This, super use summary First, this The Java keyword This can only be used
1.super was introduced to the original intentionSuper () is usually said to be super function, in fact it is a built-in class, is a new addition in Python2.2, Super () to instantiate a Super object, the Super object acts as an Access Proxy, it helps the object of the subclas
How about u disk Super Encryption 3000 software? If you need a U disk (Mobile hard disk) encryption software, then small series recommended u disk Super Encryption 3000 software , this is a powerful USB disk (mobile hard disk) encryption software, it can help you to encrypt U disk (mobile hard drive), protect your data security, so that your data security is guaranteed. So what about the software? How to
#-*-Coding:utf-8-*-# python:2.x__author__ = ' Administrator '#当使用多重继承层次结构时, it is very dangerous to use super again, mainly because the class is initialized, and the base class is not implicitly called in the __init__.#1滥用super和传统调用#来自james Knight (http://funm.net/super-harmful) example, Class C calls its base class using the __init__ method, so that Class B is c
A brief analysis of new,this,super,final keywords in Java
New Keyword
For example people person=new people ();
create an object what does it do in memory? load the People.class file at the specified location on the hard disk into memory first. When executing the main method, the Main method's space (stack-stack) is opened in stack memory, and a variable person is assigned to the stack area of the main method. Creates an entity space in the heap memo
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by defining a method or member with static, it provides some convenience for our programming, which in some way can be said to be similar to global and global variables in the C language.(It's a global variable that's understood to be static) but it doesn't mean you can use it anywhere, and if that's the case, you need to think about whether you're programming with object-oriented thinking and whether your program is object-oriented. Okay, now we're going to talk about the meaning and usage of t
Software Installation:
Super Rabbit Bounce Angel is the Super Bunny 10 Anniversary edition built in a functional module, therefore only the user installs the Super Rabbit 10 Anniversary Edition can use the Super rabbit to bounce the angel, as shown, the Super Rabbit Bounce
1. Python inheritance and invoking the parent class memberThe Python subclass calls the parent class member in 2 ways, namely the normal method and the Super methodSuppose base is a base classclass Base (object): def __init__ (self): Print "Base Init"The common method is as followsclass Leaf (Base): def __init__ (self): Base. __init__ (self) Print "Leaf Init"The Sup
) # A --> C
Print "leave B"
If the code is simple, such changes may be acceptable. However, if the code volume is large, such modifications may be disastrous.
Change to super
Super Example 1:
Class Base (object ): Def _ Init __ (Self ): Print ( " Base created " ) Class Childa (base ): Def _ Init __ (Self): base. _ Init __ (Self) Class Childb (base ): Def _ Init __ (Self):
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