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
Delete Sam file, clear Administrator account password
Find the password from the SAM file
1.l0phtcrack (LC)
2.LCP
3.SamInside Pro
Third, with net user command to restore the system login user password
Set up new password with password reset disk
V. Modify the screensaver file method
VI. Use software to modify passwords
Windows XP NT Password Recovery Key
Cleanpwd
Offline NT Password Registry Editor
Winternals Administrator ' s ERD Commander 2002/2003/2005
Force Change Windows2000 Local Administ
"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
When it comes to SEO, in fact, in addition to those cumbersome hair outside the chain of methods to increase the weight of the site to optimize the keyword, in fact, we can at the same time will be several not very effective strategies combined to use, and then constantly repeated testing, analysis, and finally come to the results, in the end Recently we found that the wheel chain plus Station group strategy, the effect is very good, such a
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 boundary conditions. Sometimes the blue ocean is op
Introduction to Strategy, strategyI. Introduction to Strategy
The rule mode is the action mode.
Behavior mode:Defines the responsibilities of each object and the communication mode between objects. It standardizes the call and data transmission methods between objects.
The rule mode is suitable for situations where algorithms change frequently.
The algorithm changes will not affect the customers who use the
Vs 2008
A behavior of a class may have multiple implementation policies. You can extract this behavior and define it as an interface. Then, you can provide multiple implementations of this interface. These classes (Policies) can be replaced with each other without affecting the client.Code.
1. Mode UML diagram
2. Application
Examples of discounts for books are divided into general discount prices and gold discount prices. For book sellers, the two discounts are two strategies for selli
get a ticket to get rid of the worry". The advantage of students is that they have a real student ID card when they go home during the cold and summer vacations, A half price can be off without a half price, which is more cost-effective than taking a car home. However, we cannot ignore the truth behind the cheap price. All kinds of ticket snatching are waiting for midnight, so sometimes we have to go home like a night owl.
In comparison, for students, the way to go home is dominated by trains a
Policy mode: Behavioral modeThe same behavior, different processing algorithms are encapsulated separately. So they can replace each other.1. Define a super-type interface and behavior method2. Define different implementation classes and implement different algorithms for this behavior/** * Strategy mode: For the same command (or behavior), different strategies to do different actions * Product Promotion * This class is: Cash Collection class * *
Evolutionary strategy (Evolution strategy)
It is recommended that before understanding ES to ensure that the idea of genetic algorithm has a certain understanding, in the comparison of learning more efficient, paste a previously written genetic algorithm to introduce the same as the genetic algorithm:
are optimized by evolutionary theory, that is, genetic information is used to inherit and mutate the survi
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
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
Copy CodeThe code is as follows:
/*** Strategy Mode (strategy.php)** Define a series of algorithms, encapsulate them one by one, and make them interchangeable, and the algorithm used can be changed independently of the customers who use it**/---The following are closed----for a series of algorithmsInterface cachetable{Public function get ($key);Public function set ($key, $value);Public Function del ($key);}Do not use cacheClass NoCache implements C
Introduction: Sometimes, the presentation layer of an application must handle coordination between multiple API layer method invocations to complete a single transactional unit of work. In this article, the transaction policy family author Mark Richards will discuss client-side choreography (clients orchestration) transaction policies and explain how to implement it in the Java™ platform.
If you have been reading this series, you should know that you now need an effective and reliable transacti
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