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I finished reading the book today and thought it was too good to write. In a simple example, the application of encapsulation is explained in detail. I think this idea can be applied to the Linux operating system design completely. For example, the relationship between NAND MTD and NAND chip info is the concept of encapsulation. Why do you want to disassemble the guitar guitarspec? Because something in Guitarspec is a mutable property in guitar. And w
dynamics of components. This is because the high-frequency dynamics involve the internal structure of each component, while the low-frequency dynamics involve the interaction of each component.
4) hierarchical systems are generally composed of only a few different subsystems in different ways of arrangement and combination.
5) We found that the complex systems that are running are always evolved from the simple systems that were previously running ...... Any complicated system that is randomly
= $this->ingredientfactory->createdough ();$this->sauce = $this->ingredientfactory->createsauce ();$this->cheese = $this->ingredientfactory->createcheese ();$clam = $this->ingredientfactory->createclam ();}}$nyPizzaStore = new Nypizzastore ();$nyPizzaStore->orderpizza (' cheese ');?>
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The above describes the head first design mode "head
1 Original Address
Http://learnpythonthehardway.org/book/ex43.html
2 Introduction
2.1 Translators
Especially in the learning process of programming language, it is often entangled in the details of the language itself, and then find that the process of learning is becoming more and more boring, so as to finally give up the first language that has just started and plunge into a new cycle. Because they forget: happiness comes from creation. Of course, it is necessary to master a language at fi
design principles. They show us how the design principles are used in Java programming. Java JDK uses some design principles: factory mode in the BorderFactory class, Singleton mode in the Runtime class, and decorator mode in the java. io class. By the way, if you are really interested in Java coding principles, read the objective Java of Joshua Bloch, which has
This article is a short story about PHP serialization/object Injection Vulnerability Analysis, which describes how to get a remote shell for a host.
If you want to test this vulnerability yourself, you can do so through XVWA and Kevgir.
The first step in exploiting the exploits, we begin to test whether the target application has PHP serialization. In order to assist the test, we used the Burpsuite superse
The basic principle of object-oriented design http://www.cnblogs.com/malaikuangren/archive/2012/03/22/2411315.htmlInterface:Understand:An agreement between the parties.Benefits:interface and implementation separation;Easy to expand;Object-Oriented
to human thinking, so as to simulate the structure and behavior of objective entities, in this way, the designed software can directly describe the real world as much as possible, construct reusable and maintainability software for modules, and limit the complexity of the software and reduce the development and maintenance costs. It is through Object-Oriented Analysis
Object-Oriented Design _ C ++ 1 and object-oriented design _ c
Mastering a language is not suitable for me. I like to quickly master 50% of a language.
Three main features of object-
1. When it comes to object-oriented, a topic that is not open, is the process oriented.Process-oriented for simple, non-collaborative transactions. Process-oriented = decomposition problem + logic first = First Detail, then whole.Compared to the process oriented,
Introduction to the six principles of object-oriented design and six major object-oriented design
In fact, they all complement each other. That is to say, some principles must be used to implement themselves.
The six principles
return New F ();}He is an encapsulation of class inheritance, in fact, the transition object is equivalent to the subclass in the class inheritance, but in the prototype as a transitional object appears, in order to create to return the new instantiated object.Of course, if you feel the need to cache the F transition, you don't have to create a new transition class F each time, and then the Object.create (
the interaction between the objects, the whole class can function normally. The results of the entire object-oriented analysis design are very close to our real world and are naturally easier to understand and implement. The teacher is shown in Object 6-2.Figure 6-2 using
prototype methods are added to the sub-class.Instance1.colors.push (' black '); Console.log (instance1.colors); // [' Red ', ' blue ', ' green ', ' black '] // [' Red ', ' blue ', ' green ']instance1.getname (); // CSSbook instance2.gettime (); // -Note: A subclass that wants to add a prototype method must pass a prototype object, one way to add it through the form of a point syntax, or it will be directly assigned to an
During the interview, you are always asked, what is your understanding of JavaScript object-oriented?Object-Oriented programming (Object-oriented Programming,oop) is a programming paradigm. It speaks of objects as the basic unit o
Process oriented:The process-oriented development approach is an abstraction of the underlying structure of the computer, which clearly divides the contents of the program into two parts: data and manipulating data. The core problem of this programming method is the development and optimization of data structure and algorithm;Object-oriented:Object-oriented is th
underlying modules, both of which are dependent on abstraction. Depending on the abstraction, it is programming the interface, not programming the implementation.Dependencies are bound to exist between classes and classes, modules, and modules. When there is a tight coupling between the two modules, the best way is to separate the interface and implementation: To define an abstract interface between dependencies so that the high-level module calls the interface, and the underlying module to imp
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