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Course Introduction：The most commonly used and practical properties in HTML development include class, id, href, src, alt, and type. class is used to share styles or behaviors, and an element can have multiple classes; id uniquely identifies a specific element, suitable for anchor links or JS acquisition objects; href is used to specify hyperlinks or stylesheet resource paths; src represents resource source paths such as pictures and scripts; alt provides image alternative text to enhance accessibility and SEO; type defines input types, button behaviors or script language types, such as text, password, submit, etc. These properties are critical to the functionality, appearance and accessibility of the page, and mastering them helps to develop a well-structured, fully functional

2025-06-30 comment 0  379

Course Introduction：In PHP, there are two most commonly used methods to compare whether two strings are equal and ignore case: one is to directly use the strcasecmp() function to perform case-insensitive comparisons, if the return value is 0, it means equality; the other is to convert the two strings into lowercase or uppercase through strtolower() or strtoupper() and then use === for comparison. In addition, you need to pay attention to coding issues in spaces, special symbols and multi-language environments when processing. If necessary, you should use trim() to clean the string or use multi-byte functions such as mb_strtolower() to ensure the correct conversion.

2025-07-12 comment 0  552

Course Introduction：PHP supports concurrent and asynchronous operations, but in a different way than Node.js or Go. 1. Asynchronous I/O can be implemented through ReactPHP or Amp, suitable for handling I/O-intensive tasks such as multi HTTP requests and real-time messages; 2. Using pcntl_fork() can achieve parallel processing through multiple processes in CLI mode, which is suitable for batch tasks; 3. Although there is pthreads extension to support threads, it is only limited to the CLI environment and is much limited, and is not commonly used in web applications. These methods have their own trade-offs. Although they are not as strong as native support for languages such as Go, they can still improve performance in suitable scenarios.

2025-07-18 comment 0  319

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 Introduction：In Dave The Diver, there are some creatures that are not easy to catch. Or, catch alive that is. The spider crab is one of those very species, making it seem like the only way to bring these crustaceans back up to land is to viciously crack them up w

2025-01-10 comment 0  856

Course Elementary  13819

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  82352

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  13173

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  24624

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  27483

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.