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Course Introduction：Using the zipfile module in Python can directly create and decompress ZIP files. 1. To create a ZIP file, you need to use the ZipFile class to open the file in write mode, and add the file through the write() method. When packaging the directory, you need to traverse the file recursively and pay attention to the path processing; 2. Unzip the ZIP file to restore the complete directory structure by extractall() method, or you can also selectively extract a single file after viewing the content through namelist(); 3. Other techniques include handling Chinese garbled code, detecting whether the ZIP is corrupt, setting compression levels and password protection (requiring a third-party library). Mastering these key points can meet daily ZIP file operation needs.

2025-07-21 comment 0  176

Course Introduction：The core function of PHP files is to handle dynamic web content, combining server-side logic and front-end display. A typical structure includes four steps: introducing configuration files, starting a session, loading an autoloader, and routing and distribution. PHP allows to embed dynamic content in HTML, which is suitable for building template pages, but it is recommended to use the template engine to separate logic from views. In the file introduction method, require is used to ensure that the script terminates in errors, and include is used for optional modules; it is recommended to use the _once version uniformly to prevent duplicate loading. The code organization recommends a separate file for each class, and classifies functions into tool classes or services, and uses namespaces to improve readability and automatic loading efficiency.

2025-07-16 comment 0  517

Course Introduction：How to use MVC mode in PHP? 1. Set the basic file structure and create three folders: Model, View and Controller; 2. Write model processing logic, such as UserModel class operating database; 3. Create controller to receive requests and coordinate model and view, such as UserController obtaining data; 4. Build view display content, such as user_profile.php mixing HTML and PHP output dynamic data; 5. Unified request processing through the front-end controller index.php, loading the model and controller and executing corresponding methods to achieve application scalability.

2025-06-21 comment 0  766

Course Introduction：Writing PHP block comments should be standardized and practical, and is suitable for instructions on large segments of structured code such as functions, classes, and file headers. 1. Usage scenarios include function description, class design intention, complex logical process, copyright information, etc.; 2. The standard format adopts /.../ package, follows the PSR-5 standard, summarizes the first line in one sentence, explains in detail after emptying the line, and uses @param, @return, @throws and other tags to explain the parameters and return values; 3. Practical suggestions include keeping the content concise, aligning and beautiful, avoiding redundancy, and regularly maintaining the consistency of annotations; 4. Common misunderstandings such as inconsistent annotations and code, ignoring the use of tags, and verbose content, you should use the IDE to automatically generate templates to improve efficiency. Standardized block annotations help improve code readability and teamwork

2025-07-15 comment 0  893

Course Introduction：SqlParameter Parameters.Add vs. AddWithValue: Choosing the Best MethodWhen working with SQL commands, you may encounter the need to add...

2025-01-10 comment 0  696

Course Elementary  13821

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  82357

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  13174

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  24625

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  27484

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.