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Article Introduction：Creating Shared Libraries in GoShared libraries, or dynamic link libraries (.so files), allow separate programs to share common code and data,...

2024-12-04 comment 0  1153

Article Introduction：The key to learning Java without taking detours is: 1. Understand core concepts and grammar; 2. Practice more; 3. Understand memory management and garbage collection; 4. Join online communities; 5. Read other people’s code; 6. Understand common libraries and frameworks; 7. Learn to deal with common mistakes; 8. Make a learning plan and proceed step by step. These methods can help you master Java programming efficiently.

2025-05-20 comment 0  445

Article Introduction：How to Manage jQuery Plugin Dependencies in WebpackWhen using webpack, it's common to organize application code and libraries into separate...

2024-12-04 comment 0  413

Article Introduction：Python has become one of the most widely used programming languages in the field of AI, thanks to its simple syntax, easy-to-read code structure, and a vast array of libraries. Whether you're developing machine learning models, automating repetitive

2025-06-17 comment 0  567

Article Introduction：Core points PSR-3, a common log object interface, allows developers to write reusable code without relying on any specific log implementation, thereby improving compatibility between different log libraries in PHP. The PSR-3 interface provides eight methods to handle messages of different severity levels, and a common log() method that can receive any severity levels. Its design is to solve the problem of log implementation incompatibility. Although PSR-3 has many benefits, some log libraries do not support it natively. However, developers can create PSR-3 compliant adapters by leveraging the adapter pattern and extending the AbstractLogger class provided in the Psr/Log library. Many major PHP projects

2025-02-24 comment 0  1264

Article Introduction：The reasons for customizing the vendor directory include: distinguishing between third-party libraries and custom class libraries, realizing the sharing of public packages for multiple projects, and organizing the code structure more clearly. To modify the vendor directory of Composer, add or modify the config.vendor-dir field in composer.json, for example, set to "lib/vendor", then delete the original vendor directory and re-run composerinstall or update. If you need to customize the class library directory, you can use autoload to configure the psr-4 namespace mapping, such as mapping "MyLib\" to "app/

2025-07-16 comment 0  392

Article Introduction：Copying and pasting the code is not impossible, but it should be treated with caution. Dependencies such as environment, libraries, versions, etc. in the code may not match the current project, resulting in errors or unpredictable results. Be sure to ensure the context is consistent, including file paths, dependent libraries, and Python versions. Additionally, when copying and pasting the code for a specific library, you may need to install the library and its dependencies. Common errors include path errors, version conflicts, and inconsistent code styles. Performance optimization needs to be redesigned or refactored according to the original purpose and constraints of the code. It is crucial to understand and debug copied code, and do not copy and paste blindly.

2025-04-04 comment 0  510

Article Introduction：Dependency injection is a design pattern that reduces component coupling, improving code testability and maintainability through incoming dependencies rather than internal creation. For example, in Python, the UserService class can receive database connections through the constructor without caring about the specific implementation type. Common implementations include manually passing dependencies and using third-party libraries such as dependency_injector. Manual injection is simple and intuitive, but the dependency is complex initialization when it is multi-dependency; third-party libraries centrally manage dependencies, which are suitable for large projects. It is recommended to use DI when frequently changing implementations, writing unit tests, or developing complex systems, and transition from manual injection to container management step by step.

2025-07-22 comment 0  637

Article Introduction：Bootstrap is a framework developed by Twitter to help quickly build responsive, mobile-first websites and applications. 1. Ease of use and rich component libraries make development faster. 2. The huge community provides support and solutions. 3. Introduce and use class names to control styles through CDN, such as creating responsive grids. 4. Customizable styles and extension components. 5. Advantages include rapid development and responsive design, while disadvantages are style consistency and learning curve.

2025-04-15 comment 0  1068

Article Introduction：The core benefits of PHP include ease of learning, strong web development support, rich libraries and frameworks, high performance and scalability, cross-platform compatibility, and cost-effectiveness. 1) Easy to learn and use, suitable for beginners; 2) Good integration with web servers and supports multiple databases; 3) Have powerful frameworks such as Laravel; 4) High performance can be achieved through optimization; 5) Support multiple operating systems; 6) Open source to reduce development costs.

2025-04-16 comment 0  799

Article Introduction：Java bytecode instrumentation realizes dynamic analysis of the running status of Java programs by modifying the .class file insertion monitoring logic when class loading. Its core principle is to use the Instrumentation API and bytecode operation libraries (such as ASM, ByteBuddy, etc.) to insert monitoring code before and after the method is executed without modifying the source code. The specific steps include: 1. Use JavaAgent to intercept the class loading process and register the ClassFileTransformer; 2. Insert monitoring logic such as timing, logs, etc. into the target method to ensure that the original logic is not affected; 3. Avoid destroying the method signature or introducing exceptions, and ensure that the bytecode passes JVM verification. Common application scenarios are:

2025-07-23 comment 0  918

Article Introduction：Reasons for C#.NET to remain lasting attractive include its excellent performance, rich ecosystem, strong community support and cross-platform development capabilities. 1) Excellent performance and is suitable for enterprise-level application and game development; 2) The .NET framework provides a wide range of class libraries and tools to support a variety of development fields; 3) It has an active developer community and rich learning resources; 4) .NETCore realizes cross-platform development and expands application scenarios.

2025-05-10 comment 0  486

Article Introduction：To set up broadcasts with LaravelEcho, first configure Pusher as the broadcast driver, then install and initialize the LaravelEcho and PusherJS libraries, then define broadcastable events in Laravel, then listen to these events on the front end, and finally pay attention to common problems. 1. Configure Pusher's credentials in the .env file and clear the configuration cache; 2. Install laravel-echo and pusher-js through npm and initialize Echo in the JS entry file; 3. Create an event class that implements the ShouldBroadcast interface and trigger events in the appropriate location; 4. Use Echo to listen for specified channels and events in the front-end; 5. Pay attention to the construction tool

2025-07-10 comment 0  935

Article Introduction：JRE is the environment required to run Java programs, it contains JVM, class libraries, and startup tools. 1. JVM is the core of executing Java code; 2. The Java class library provides network, graphics and file processing functions; 3. The startup tool is used to run Java applications smoothly. JRE is aimed at ordinary users, while JDK includes JRE and development tools, suitable for developers. If the system does not have Java preinstalled, JRE needs to be installed manually. Common prompts include program errors or browser prompts. Installing JRE today is usually done as part of the JDK.

2025-06-27 comment 0  970

Article Introduction：Bundlers are the core tools in modern front-end development. Its main functions include: 1. Module packaging, packaging modular code such as ESModules into a format that can be run by the browser; 2. Resource processing, unified management and optimization of resources such as JS, CSS, and pictures; 3. Code optimization, realizing compression, TreeShaking, code segmentation and other functions to improve performance; 4. Providing development server and hot update functions to improve development experience. Common tools such as Webpack are suitable for large projects and in-depth customization, Vite is suitable for rapid development in modern browser environments, and Rollup is more suitable for building npm packages or component libraries. Using modular development, introducing third-party libraries, building complex projects or

2025-07-24 comment 0  407

Article Introduction：CRTP realizes static polymorphism for derived class types through base class template parameters. 1. The base class uses template parameters Derived to obtain derived class types, and calls derived class methods to achieve static distribution through static_cast; 2. All classes that inherit Cloneable automatically obtain type-safe clone() functions; 3. Advantages include virtual function overhead, high parsing performance during compilation, code reuse and type safety; 4. Notes include derived classes that must correctly inherit Base, and implement the desired methods of the base class, and cannot directly manage different derived class objects through base class pointers. This mode is widely used in high-performance libraries such as Eigen and Boost.

2025-07-30 comment 0  316

Article Introduction：Although there are no mandatory norms in the Go project structure, the community has formed common best practices. 1. The basic directory structure includes cmd/storing executable portals, internal/storing private packages, pkg/storing public libraries, optional API/, config/, scripts/, web/ or ui/. 2.cmd/ each subdirectory represents an executable program, and main.go keeps it simple. 3.internal/restrict external references, pkg/ is used to expose public libraries to the outside world. 4. Other suggestions include reasonable allocation of packages, avoiding circular dependencies, using GoModules, coexisting with source code, and improving documentation. A good structure improves development efficiency and facilitates collaboration.

2025-07-17 comment 0  382

Article Introduction：cgo is a tool provided by Go to call C code in Go. 1. Use the pseudo-package "C" and write C code in the comments; 2. C functions and types are accessed through C., such as C.int, C.malloc; 3. Go string to C to C.CString, and deferC.free is required to release; 4. Calling external libraries requires specifying paths and libraries in #cgoCFLAGS and LDFLAGS; 5. Calling Go functions from C requires exporting using //export, and the function parameters are C type; 6. Pay attention to memory management, avoid frequent calls to small functions, and do not hold pointers across languages for a long time; 7. Common traps include forgetting to free memory and not correctly exporting callback functions. Encapsulation when using cgo

2025-07-28 comment 0  977

Article Introduction：This code demonstrates how to capture changes in screen orientation on iPad devices and apply different styles according to the orientation. The code is implemented by adding class names to HTML tags, similar to libraries such as Modernizr, and uses CSS3 media queries to achieve style switching. jQuery(document).ready(function($) { // Capture changes in iPad device direction function doOnOrientationChange() { switch (window.orientation) { case -90: case 90:

2025-02-23 comment 0  896

Article Introduction：PSR represents the PHP standard recommendation in PHP, and is proposed by the PHP Framework Interoperability Group (PHP-FIG), which is used to unify code style, improve readability and collaboration efficiency. Its core goal is to promote compatibility between different frameworks and libraries, although not mandatory, but widely adopted. Common PSR standards include: 1.PSR-1: Basic coding specifications, specified for use

2025-07-10 comment 0  536