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Course Introduction：Object-oriented programming: Detailed explanation of classes and objects (Comparison of Python and Java) This article will use Python and Java code examples to compare and explain the concepts of classes and objects, as well as the usage of constructors. 1. Classes and Objects Python: # Student class definition class Student: name = "Momo" #Create object s1 of Student class s1 = Student() print(s1.name) Java: // Student class definition class Student { String na

2025-01-20 comment 0  853

Course Introduction：File packaging and compression utilities are crucial in Unix-based operating systems such as Linux. The zip command is such a utility that effectively compresses files to save disk space and speed up file transfers. This article will give a detailed explanation of the use of Linux zip commands, including common use cases and practical examples. Command Syntax The basic syntax of Linux zip command is as follows: zip [Options] zipfile file list in: Options Indicates any command line option you want to use. zipfile is the name of the zip file you want to create. File List is the file you want to compress. For example, if you want to add a file named filename.txt

2025-03-16 comment 0  587

Course Introduction：Detailed explanation of the method of conditional application of CSS class in Vue.js Core points: In Vue.js, conditional application of CSS classes can be implemented by binding JavaScript objects to class attributes. The attributes of the object correspond to the CSS class name, and its value is a JavaScript expression, which determines whether to apply the class. Vue.js provides two syntaxes to create class bindings: object syntax and array syntax. Object syntax is more concise, while array syntax may make template code clearer. Which grammar to choose depends on personal preference. Vue.js supports a variety of conditional class binding methods, including using ternary operators, object syntax to bind multiple classes, using computed properties, combining static and bound classes, and conditional binding inline styles.

2025-02-14 comment 0  635

Course Introduction：Detailed explanation of WordPress Theme Customizer Media Control: Added WP_Customize_Media_Control class Recent WordPress updates have changed its API. Some functions and classes are added, others are deprecated. This article discusses topic customizer media controls. In previous versions, these controls were available, but only to the WP_Customize_Upload_Control class. Now we have discovered a new class to manage media, called WP_Customize_Media_Control. First, I'll cover how to manage media controls in the theme customizer using this new class. Then, we will introduce

2025-02-15 comment 0  452

Course Introduction：Detailed explanation of Java Set: The collection of the unique element efficiently This article will explore the SET interfaces and its main implementation classes in Java to help you understand how to efficiently handle a collection that does not include duplicate elements. Source: https://www.devmedia.com.br/java-Collections-Como-Utilizar-Collections/18450 1. Java Set interface introduction The SET interface is a set that does not allow duplicate elements. It is based on a collection of mathematical operations (collections, intersections, and differences), which is very suitable for the need to ensure the uniqueness of the element. Main features: Repeated elements are not allowed. Can store

2025-01-28 comment 0  1151

Course Elementary  13770

Course Introduction：Scala Tutorial Scala is a multi-paradigm programming language, designed to integrate various features of object-oriented programming and functional programming.

Course Elementary  82280

Course Introduction："CSS Online Manual" is the official CSS online reference manual. This CSS online development manual contains various CSS properties, definitions, usage methods, example operations, etc. It is an indispensable online query manual for WEB programming learners and developers! CSS: Cascading Style Sheets (English full name: Cascading Style Sheets) is an application used to express HTML (Standard Universal Markup Language).

Course Elementary  13143

Course Introduction：SVG is a markup language for vector graphics in HTML5. It maintains powerful drawing capabilities and at the same time has a very high-end interface to operate graphics by directly operating Dom nodes. This "SVG Tutorial" is intended to allow students to master the SVG language and some of its corresponding APIs, combined with the knowledge of 2D drawing, so that students can render and control complex graphics on the page.

Course Elementary  24589

Course Introduction：In the "AngularJS Chinese Reference Manual", AngularJS extends HTML with new attributes and expressions. AngularJS can build a single page application (SPAs: Single Page Applications). AngularJS is very easy to learn.

Course Elementary  27446

Course Introduction：Go is a new language, a concurrent, garbage-collected, fast-compiled language. It can compile a large Go program in a few seconds on a single computer. Go provides a model for software construction that makes dependency analysis easier and avoids most C-style include files and library headers. Go is a statically typed language, and its type system has no hierarchy. Therefore users do not need to spend time defining relationships between types, which feels more lightweight than typical object-oriented languages. Go is a completely garbage-collected language and provides basic support for concurrent execution and communication. By its design, Go is intended to provide a method for constructing system software on multi-core machines.