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Course Introduction：This article explains how to embed audio in HTML5 using the <audio> element, including best practices for format selection (MP3, Ogg Vorbis), file optimization, and JavaScript control for playback. It emphasizes using multiple audio f

2025-03-10 comment 0  1230

Course Introduction：C was chosen to develop embedded systems because of their efficient performance, close to hardware control capabilities and rich programming characteristics. 1) C provides manual memory management, suitable for environments with limited resources; 2) supports multi-threaded programming to ensure real-time response; 3) allows direct operation of hardware registers to achieve precise control.

2025-03-31 comment 0  361

Course Introduction：MySQL date function: Play with time and control data. Many friends are often dizzy when processing MySQL databases. In fact, mastering MySQL's powerful date functions can simplify the complex and easily control time data. In this article, let’s explore these functions in depth so that you will no longer be tortured by date format and time calculation. After reading, you can not only be proficient in using various date functions, but also understand the principles behind them and write more efficient and elegant SQL statements. Basic preparation: Time type and format Before starting, we need to clarify the data types that store dates and times in MySQL, such as DATE, TIME, DATETIME, TIMESTAMP, etc. They each have their own characteristics

2025-04-08 comment 0  328

Course Introduction：HTML5 introduces a variety of new input types to improve form processing and user experience. 1.type="email" verify the mailbox format; 2.type="url" verify the URL; 3.type="number" limits the value and supports the increase and decrease operation; 4.type="range" provides the slider selection range value; 5.type="date" and related types provide date and time selection; 6.type="search" optimizes search input; 7.type="color"

2025-06-23 comment 0  651

Course Introduction：Nginx log security is crucial, it may leak sensitive information or expose malicious access attempts. This article provides a series of effective measures to help you improve Nginx log security: Access control: Strictly restrict access to Nginx log files. Only authorized personnel can access it and use file system permissions to control access. At the same time, implement log rotation and archiving strategies to reduce the scale of log files and reduce risks. Information desensitization: The log format should avoid recording sensitive information (such as passwords, credit card information). Use the log desensitization tool or custom log format to hide sensitive data. Real-time monitoring and alarm: Deploy the monitoring system to track abnormal behavior in Nginx logs in real time. Configure alarm mechanism,

2025-04-13 comment 0  442

Course Elementary  13773

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  82282

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  13145

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  24591

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  27447

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.