Course Introduction：When the picture does not need to be described, there are three main situations: First, the picture is only decorative elements, such as background patterns or icons with no practical significance, and it will not affect information transmission after deletion; Second, the picture content has been clearly described in adjacent text to avoid repeated interference with screen reader users; Third, the picture is used as part of a button or link, and there are texts next to it to illustrate its function, such as a magnifying glass icon or shopping cart icon next to the search box. The rational use of the alt attribute can improve the accessibility and SEO effect of web pages. The key is to judge whether the picture has substantial significance.
2025-06-29 comment 0 638
Course Introduction：Methods to improve efficiency using Chrome with multiple monitors include: 1. Flexible arrangement of window layout, place the main browser window on the main screen, place the reference web page or monitoring page on the secondary screen, and quickly move the window with shortcut keys; 2. Separate user configuration, and set multiple profiles to achieve different accounts and plug-in environments for different monitors to avoid chaos; 3. Use split-screen plug-ins, expansion tools and picture-in-picture functions to optimize space utilization and reduce window switching. Rationally allocating task areas and combining these techniques can effectively improve the operation efficiency under multiple screens.
2025-07-18 comment 0 683
Course Introduction：Eagle is a powerful image database software with built-in crawler function that can batch capture pictures on Huabaiwang to meet your needs for image management. Eagle not only automatically recognizes the tone of the picture, but also supports finding the picture through color. In addition, it also provides various functions such as shape search, source search and size search to help you easily manage and find pictures. Whether you are using Windows, Mac or ChromeOS, Eagle can run smoothly in various environments to meet your multi-platform needs. Eagle also provides convenient browser plug-ins that support batch saving of pictures on the current web page. You can quickly save screenshots, original web page images or local files, and use simple drag and drop operations to transfer your favorite pictures
2025-05-07 comment 0 853
Course Introduction：The key to making the picture clearer in Photoshop is to adjust the parameters according to the content and purpose of the picture and combine layer techniques. 1. Use the "Smart Sharpening" tool: the path is Filter>Sharpening>Smart Sharpening. It is recommended to start at 50%, set the radius to 1~2 pixels, appropriately reduce noise, and sharpen slightly multiple times to keep it natural; 2. Layered sharpening: Copy the layer and use different parameters for different areas, combine masks and "high contrast retention" to enhance details, suitable for commercial or printed pictures; 3. Avoid oversharpening: prevent white edges, obvious noise and other problems, reduce opacity, check "Preview" to adjust and view, and do local processing of low-resolution images; 4. Adjust strategy according to the purpose: web page images can moderately enhance sharpness,
2025-07-28 comment 0 376
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 0 705
Course Elementary 13826
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 82370
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 13184
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 24635
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 27491
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.
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