Brief introduction
Policy is one of the behavioral patterns, which allows the behavior or algorithm of an object to change at run time, using different algorithms to achieve the same result or purpose.
Implementation level, define an abstract algorithm interface, and then according to the specific algorithm to define different classes to implement the interface, the invocation of different implementations of the instances can be replaced with each other.
The policy pattern applies to multiple cl
The strategy of the Red Ocean is mainly to compete in the already known market space. Here, you are cheaper than your opponent, or you can achieve a more differentiated strategy than him, the game rules have been set.
The blue ocean strategy is not limited to the existing industrial boundaries, but to break such bounda
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
Six AI elements required for wireless network strategy and ai elements for wireless network strategy
With the development of artificial intelligence (AI), organizations can transform their wireless networks through predictable, reliable, and measurable WiFi.
Today, artificial intelligence is everywhere. It is widely believed that artificial intelligence will become the next technology to subvert the indust
be moved at this time), the player is negative. According to this definition, many of the day-to-day games are not ICG. For example, chess does not meet the conditions of 3, because the red can only move the red son, Black can only move sunspots, the legitimate move set depends on the turn of the player to operate.
The usual NIM game is defined as: There are a number of pebbles, each with a finite number of stones, the legal move is to "pick a bunch
involved in the game.Choice is the easiest way for players to participate in the game. It is impossible for online games to allow gamers to act according to their own will, even games with a high degree of freedom like uo. The number of options and options provided by the game are actually the freedom of the game. In online games, such as the choice of character
other side of this isThe consideration that if there is no need to adapt to a new situation, a player will continueUsing the same strategy and never feel should red to improve, and likely become bored of repetition.
Martin C. Martin, a software engineer and game design thinker, once suggested that learning and exploration are the key to stickiness in the game. W
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
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
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
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,
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
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
impact on the emergence of cooperative behavior; 2) in the context of evolutionary game dynamics and network structure, the change and emergence of cooperative behavior in college students ' community are studied. As a powerful means to research cooperative behavior, the commonly used evolutionary game model has the prisoner dilemma model, shovel snow model, public goods model and so on. Prisoner dilem
"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
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
several piles of stones, and the number of each pile of stones is limited. The legal move is to "select a pile of stones and take several stones away (you can't help but take them )", if it is the turn of a person, all the stone heaps have been taken empty, it will be negative (because he does not have any legal movement at the moment ).
This game looks a little complicated. Let's start with the simple situation. If it is your turn, there will be onl
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
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