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Why Study Design Patterns:1, more in-depth understanding of object-oriented thinking2, is conducive to the development of a strong extension of things What is a design pattern: a typical solution for a typical scenario that often occurs is the design pattern. For example,
Seven Principles of object-oriented design and seven
Today we will talk about seven principles, namely: single responsibility, Lishi replacement, dimit law, dependency reversal, interface isolation, synthesis/aggregation principle, and openness-closure.
1. Open and Close principles(Open-Closed Principle, OCP)
Definition:The software entity shall be open to extens
1. (understanding) Object-oriented vs. process-oriented example: people open the door; pack the elephant in the fridge2. Object-oriented programming focuses on class design!1) A project or project, no matter how large, must have a
Object-oriented design is a very important part of PHP program development, if you want to be a senior PHP programmer, we must know the specific usage and wording of object-oriented design.
Maintaining a simple modularity is a fe
Reprinted from: http://hi.baidu.com/wind_stay/blog/item/fe9db22c5b44b03e359bf75b.html
Object-oriented, server architecture, and design patternsAnd seek out your friends.Original: Lu yueqiang copyright statement: all belongs to Lu yueqiang, and any transfer and reference must specify the sourcePrimary to internalN1 Server ArchitectureDesign Pattern of N 2, applic
PHP learning notes-oriented design. Object-oriented design is a very important part in php program development. if you want to become a senior php programmer, we must know the specific usage and writing of object-
Three basic elements of object-oriented architecture: encapsulation, inheritance, and Polymorphism
Five basic object-oriented design principles:
Single-Resposibility Principle)
Its core idea is: A class, it is best to do only one thing, and only one will cause its changes. T
"from the interview caused by the thinking: b/S and C/S is what"), so decisive in today spent an afternoon of time, side want to write, and finally finished, Also hope that we can benefit from the two articles themselves are not very deep and very new technology, but as a programmer, if you want to have technical attainments, must first learn the basic skills, I repeat my point of view:Technology is like martial arts, basic skills is very important, as long as the basic skills, and then to lear
Legend has it that object-oriented development patterns were first created by lazy programmers. Development so far, people from the initial hot loyalty to discuss whether a certain language is enough object-oriented to now start a broader focus on object-
"Design mode" This word almost become synonymous with software design, many people very naïve thought mastered the design model to master the software design , but in fact, if only to grasp the design mode, the software design doo
I recently read the design model. I like this book very much, and the content is also very understandable. I am a little addicted to reading it. Haha, I first looked at the object-oriented basics. I have been familiar with object-oriente
For the design of object-oriented software systems, improving system reusability while supporting maintainability is a crucial issue, how to Improve the maintainability and reusability of a software system at the same time is one of the core issues that need to be addressed in object-
In the previous article, we talked about the design patterns. Next, let's talk about some of the principles we often follow in object-oriented design. These principles are the result of numerous previous experiences. Only by following these principles can you involve excellent code. Today we will talk about seven princ
, the constructor pattern is used to define instance properties (each instance itself is unique, not shared), whereas the prototype pattern is used to define methods and shared properties.6.2.5 Dynamic Prototyping ModeAll information is encapsulated in the constructor, and the prototype is initialized in the constructor function.function Person (name, age, Job) { this. Name = name; this. Age = Age ; this. Job = job; if (typeofthis. Sayname! = "Functin") {// in the case that the Sayna
by the program, the value of the inside does not know when will be overwritten If you pass a class, struct, and so on, the parameters and return values are passed through some space in memory.The reference is converted into a pointer operation.Constructor: The same as the class name, no return value, implementation of the class member initialization. It is best to initialize the initial value list, and if the function body is initialized, the data member has completed the default initialization
At first, I thought it was too dull. In the eighth chapter, the author's analysis of the object-oriented problem, I follow the design and development of the book, understand some of the concepts previously just seen in the book.Make some notes for yourself:1. The virtual bas
One1, the core of object-oriented thinking: Encapsulation, inheritance, polymorphism.2, the pursuit of object-oriented programming:Cohesion-poly low-coupling solution;Modular design of the code;3, what is the design mode:The clas
rules of the class.Properties and Methods
Casting from the Mold (object), there are a lot of parameters (length, width, height, etc.), can complete different operations (cooking, load-bearing, protection of internal parts, etc.). The argument here is the object's "property", and the complete operation is the object's "method".
A property is a variable that represents the characteristics of an object, suc
1. To learn the design mode, first understand what the design mode is:
1. What is the design model?
The design pattern describes a general solution to a type of common problems in the software design process.
2. What is an object-
reasons such as the need to modify the original code of the software, may introduce errors in the old code, or we will have to refactor the entire functionality, and the original code needs to be tested again. This has a special impact on our entire system, which also fully shows 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 fundamental solution to th
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