strategy pc

About the pc-side rem font settings ., Pc-side rem font settings 1. the content displayed on the screen is in the upper-right corner (content box). The content is definitely located in the content box. in this way, the content is always in the middle of the screen of different sizes and looks normal. 2. long, wide, LEFT, TOP, RIGHT, and BOTTOM all adopt REM, And the FONT-SIZE of HTML is set to 100PX. 1. It

Design Mode (18) Strategy Mode strategy (object behavior type) 1. Overview Similar situations are often encountered in software development. There are multiple algorithms or policies for implementing a function. We can select different algorithms or policies based on different environments or conditions to complete this function. Such as search and sorting. A common method is hard coding in a class. To pr

Design Mode (18) Strategy Mode strategy (object behavior type) 1. Overview Similar situations are often encountered in software development. There are multiple algorithms or policies for implementing a function. We can select different algorithms or policies based on different environments or conditions to complete the function. Such as search and sorting, a frequently used method is hard coding in a clas

1. Difference and connection between Strategy Mode and state mode (this part is reproduced from: http://letscoding.cn/java%E4%B8%AD%EF%BC%8C%E7%8A%B6%E6%80%81%E6%A8%A1%E5%BC%8F%E5%92%8C%E7%AD%96%E7%95%A5%E6%A8%A1%E5%BC%8F%E7%9A%84%E5%8C%BA%E5%88% AB) Policy mode encapsulates a set of related algorithms to provide the client with runtime flexibility. The client can select any algorithm at runtime without changing the context of the algorithm. Examples

Design Mode (18) Strategy Mode strategy (object behavior type) 1. Overview Similar situations are often encountered in software development. There are multiple algorithms or policies for implementing a function. We can select different algorithms or policies based on different environments or conditions to complete this function. Such as search and sorting. A common method is Hard Coding in a class. To pr

introducing this chapter, we will explain the strategy of passing parameters to function functions in ECMAScript. In computer science, this strategy is generally called "Evaluation strategy" (Uncle Note: Some people say translation into the evaluation strategy, some people translated into the assignment

Policy patterns define a series of algorithms, encapsulate each algorithm, and make them replaceable. The rule mode allows algorithms to change independently of customers who use it. (Original article: The Strategy Pattern Defines a family of algorithms, encapsulates each one, and makes them interchangeable. strategy lets the algorithm vary independently from clients that use it .) context (Application Scen

Three Kingdoms 9 strategy: practice, military strategy Urban skill practice DetailsThe city that can be practiced isSouth PI infantry fought 100Wuwei cavalry exceeded 100Xiangping bow riding and riding shot 150JianningHui yuan, Shui Jun, Jun 150Xicheng siege Jing Yi 150Runan smart creation 50North Sea Strategy chaos 50Security Policy abuse 50 The following number

The rule mode is intended for a group Algorithm , Encapsulate each algorithm into an independent class with a common interface, so that they can be replaced with each other. The policy mode allows the algorithm to change without affecting the client. Suppose we want to design a shopping cart CAT System for e-commerce websites selling books. The simplest case is to multiply the unit price of all goods by the quantity, but the actual situation must be more complicated than that. For example,

The strategy mode is a behavioral design pattern that encapsulates the algorithm one at a time and can use one of the algorithms interchangeably at some point. Conceptually, all of these algorithms are doing the same thing, just realizing the difference.MotivationIn development, we often encounter tasks that are conceptually the same, dealing with different methods, for example, using different tax calculation methods for a product to calculate its pr

Strategy Basic ConceptsPolicy mode (strategy pattern): Define a set of algorithms that encapsulate each algorithm and are interchangeable between them. Using object-oriented inheritance and polymorphic mechanism implementation Strategy in therole: Context Wrapper role :It is called the context role, the packaging function of the connect

Liu Bei is about to marry his wife in Jiangdong. Zhuge Liang gave Zhao Yun (Best Man) three tips before, saying that they had taken the opportunity to solve the difficult problem. Hey, don't say that it really solved the big problem, in the end, Zhou Yu lost his wife and had a discount. Let's take a look at what the scene looks like. Let's first talk about the elements in this scenario: three tips, one tip, and one Zhao Yun. The tips are given by Comrade Xiao Liang. They are placed in the tips,

Mode motiveThere are many different ways to accomplish a task, each of which is called a strategy, and we can choose different strategies to accomplish this task depending on the environment or the conditions.In software development also often encounter similar situation, to achieve a certain function has a number of ways, at this time can use a design mode to make the system can choose the solution flexibly, but also can easily add new solutions.In s

"Design pattern Refinement" Learning notes (10) ------Strategy (policy) mode GoF : Define a series of algorithms, encapsulate them one by one, and allow them to replace each other. This mode allows the algorithm to vary independently from the customer who uses it. For example, in our system, we need to paint a graphic or a WordArt (such a system is in the real world, a bill output system made by my former company has this function). If we need

One, general overview1, the author discussesThe strategy pattern, also called the algorithm cluster pattern, is to define the different algorithms, and can replace each other, this pattern makes the algorithm changes independently of the customers using the algorithm.The strategy mode and the factory model are similar, the strategy mode is relatively simple and e

Design Pattern-strategy pattern, design pattern-strategy Rule ModeDefines a series of algorithms, encapsulates each algorithm, and enables them to replace each other. The rule mode allows algorithms to change independently of customers who use it. Abstract policy role: a policy class, usually implemented by an interface or abstract class. Specific policy roles: encapsulate related algorithms and behavior

I read the "This is the search engine: the core of technical details," The book, see the text in chapter three of the following words aroused my thinking: This kind of reconstruction strategy is better suited for small document collections because the cost of fully rebuilding the index is high, but the current mainstream business search engine generally uses this way to maintain the update of the index, which is related to the characteristics of the

The main content is about some notes and experiences when learning the design model. Reference books available Head first design patterns Design Patterns: Elements of reusable object-oriented software Implementation patterns. The definitions of policy patterns in the two design patterns are the same: defining some column algorithms, encapsulating each algorithm, and making them interchangeable internally. The policy mode allows algorithms to change independently of users.Define a family of algor

Define: define a family of algorithms, encapsulate each one, and make them interchangeable. Strategy lets the algorithm vary independently from clients that use it.I. Strategy Mode The purpose of the rule mode is to encapsulate each algorithm into an independent class with a common interface for mutual replacement. The policy mode allows the algorithm to change without affecting the client. Suppose we want

8.2.1 Strategy Design pattern (the strategy style)At run time, the policy pattern is useful if the application needs to choose between several algorithms, or between different parts of an algorithm. A common scenario is that when our application needs to perform several tasks, it is different only on very small sub-tasks. Using the policy mode, for the common part of the task, we just write once, plus param