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Ways to implement some design patterns in thinkphpFirst, let's look at the six principles that the design pattern follows1. Single Responsibility Principle(1) Definition: Do not have more than one cause of class changes. In layman's terms, a class is responsible for only one responsibility.(2) The advantages of following a single responsibility are:Can reduce the
the system.The object-oriented design principle and design pattern are also the compass to reconstruct the system rationally, and the reconstruction (refactoring) is to improve the quality and performance of the software by adjusting the program code without changing the existing functions of the software, and make the design pattern and structure of the program
PHP design patterns-six principles. PHP design patterns-six principles code that follows the six principles is generally considered to be scalable and reusable: These six principles should be followed by any object-oriented langua
reversal) is by Robert? C. Martin's acronym for memorization, introduced in the early 21st century [1], refers to the five basic principles of object-oriented programming and object-oriented design. When these principles are applied together, they make it more possible for a programmer to develop a system that is easy for software maintenance and expansion. s
Article Description: any new era of web sites, responsiveness, dedication perfect rendering, no matter the access device, but it brings another huge advantage to web design. The response era of web design principles confirms the value, so it is more obvious that these are effective and useful regardless of time or designer practice. Here are seven basic
1. Opening and closing principle (the Open Closed principle OCP)
A module should be open in terms of extensibility and should be closed in terms of modification. Therefore, the interface encapsulation mechanism, abstract mechanism and polymorphic technique should be considered as far as possible in object-oriented design. The principle is also suitable for non object-oriented design method, is one of the i
If you are in a network company, you may have read a lot of websites. You must have your own aesthetic vision. Some of them are pretty and some are cool. When it comes to this, many people may think that, A website does not need to care so much, as long as customers like it. Sun Chen believes that no website can be used independently, but you need to consider whether the website is meaningful. Looking at the Internet, there will be too many websites, but there are a few better ones. This is the
Before discussing the nlayerapp project, let's first learn (or repeat) the hierarchical/multi-layer architecture and application system design principles. Many of my friends will think that these are old-fashioned content. As long as they are software practitioners, they will be very familiar with this content. But is that true? I will sort out this part here. On the one hand, it will lay the foundation for
interacts with the user interface, the model should not depend on the interface, but the interface should depend on the model.(17) modeling in the real world as much as possible (we often violate this principle in order to comply with the principles of system function distribution, to avoid all-encompassing principles, and to centralize the placement of relevant data and behavior ).(18) remove unnecessary
As computer technology is increasingly widely used in various fields of the national economy, while computer hardware is constantly miniaturization, application systems are evolving towards a more complex and large-scale direction. Database is the core of the entire system. Its design is directly related to the efficiency of system execution and system stability. Therefore, in software system development, database
This article explains the principles that programming should follow.
I just want to give a rough translation, or take a closer look at the English language so that it will not be misled by others.
The principles of good programming
By Christopher Diggins
Today's post is a lightly edited repost from my blog at the area, a web-site dedicated to users of AutodeskMedia and entertainment products. I came up
61 empirical principles of Object-Oriented Design
Excerpted from the log of OOD, translated by BaO zhiyun, Arthur J. Riel
"You do not have to strictly abide by these principles and violate them and are not subject to religious penalties. But you should regard these principles as warning bells. If
functionality and require the original code to be re-tested. This has a particularly large impact on our entire system, which also fully demonstrates the coupling of the system if too high, will greatly increase the later expansion, maintenance. In order to solve this problem, people have summed up the principle of opening and closing. The solution to the opening and closing principle is still decoupled. So, our most fundamental task in object-oriented development is decoupling.Workaround: When
23 Types of design Patterns in Java development (RPM)design Pattern (Patterns) --the basis of reusable object-oriented softwareDesign Patterns are a set of reusable, most known, categorized purposes, code design experience Summary. Design patterns are used for reusable code , to make code more accessible to others , an
reflect its functional characteristics, The cohesion of these classes or methods must not be high.
What is coupling degreeThe coupling degree represents the tightness of the relationship between classes.The degree of coupling determines how easy it is to change an application. In a tightly coupled class structure, changing a class causes other classes to be modified as well. Obviously, this is what we should avoid in class design, because tiny
Document directory
(1) Single-Resposibility Principle and interface-segregation principle)
Single Responsibility Principle
Interface isolation principle
(2) principle of open-closed principle and principle of dependency inversion (dependecy-inversion principle)
Open and closed Principle
Dependency inversion
(3) liskov replacement principle (liskov-substituion principle)
We often talk about three main characteristics of object-oriented: encapsulation, inheritance, and polymorphism. T
61 empirical principles of Object-Oriented Design
Author: Arthur J. Riel
"You do not have to strictly abide by these principles and violate them and are not subject to religious penalties. But you should regard these principles as warning bells. If you violate one of them, the warning bells will ring ."
---------- Ar
Ood basically has six principles, but they are actually complementary. That is to say, some principles need to be implemented by others. The six principles are as follows:
1) Open-Close principle (OCP): the principle of open-close is that the design should have good support for expansion, while the modification should
Seven design principles of object-oriented1. Opening and closing principle2, the Richter replacement principle3. Single Duty principle4. Interface Isolation principle5. Dependency Inversion principle6. Dimitri Principle7. Combination/The principle of aggregation multiplexingKnowledge Point CorrelationLearning object-oriented design patterns,is the key to the obje
The design principle is a guiding and abstract concept. The design mode is a good practical experience to achieve the design principles.
After a while of object-oriented programming. The first thing to learn is the design model. The purpose of the
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