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This article focuses on "what is decoupling and MVC in github". Interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn what decoupling and MVC are in github.

What is decoupling?

Software engineering has a familiar concept: high cohesion and low coupling. If we need a higher cohesion effect, we will of course have to remove the close relationship between the modules first.

Decoupling: organize your code into the smallest organizational units (modules) and limit the interaction between them.

When you uncouple your code, when you need to replace a decoupled module, the other modules still work.

An example of decoupling:

This function is tightly coupled and increases the number of dependent classes.

Void function (Date date, Selection selection) {TimeZone tz = selection.getRecoder (). GetLocation (). GetTimeZone ();}

Decoupling:

The redundant dependent classes are removed, and the function interface requires only what is needed, rather than digging through the hierarchical relationship of calls-to achieve simple decoupling.

Void function (Date date, TimeZone tz) {}

/ * you only need to pass what you need when calling * /

Function (date, selection.getTimeZone ())

Decoupling plays a very important role in software design. Excessive coupling will seriously affect the extensibility of the code and increase maintenance costs, so it is very necessary to understand decoupling and apply it to practical projects.

The coupling between modules is minimized.

A brief introduction to MVC thought

Model-View-Controller (MVC) is a classic representative of decoupling, which decouples data, controller and view, which brings great convenience to GUI design, so we must understand and use this method.

What is Model?

Model is the model, which represents the abstract data type of the object to be displayed.

What is View?

View is the view, which represents the way Model is displayed, that is, the GUI control style.

What is Controller?

Controller is the controller, which is used to control View to display Model, which is equivalent to the bridge between Model and View.

The key concept of MVC: separate the model from the View that represents the model and the controller that manages the view. In this way, our model, view, and controller are basically decoupled.

To put it simply:

The idea of the application of MVC on GUI is to let the controller send the data model to the view according to certain rules. The model, view and controller are represented as three independent class in the code.

This idea is also used in a recent project, the project needs to parse the data in the specified packet (Model), and then dynamically (Controller to control) display it on the custom control (View). A very important part of the structural support of the project is MVC, you can see its importance.

At this point, I believe you have a deeper understanding of "decoupling and MVC in github". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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