Course Introduction：Core points The HTML5 canvas element allows native integration of multimedia content, including line drawings, image files, and animations, into web pages, and can be used to create sliding puzzle games. The canvas drawing is performed through a context that is initialized by the JavaScript function getContext(). The drawImage() function in JavaScript is used to display images on canvas, and different parameter options allow resizing images and extracting image parts. The game logic of the sliding puzzle involves creating a two-dimensional array to represent the board. Each element is an object with x and y coordinates that define its position in the puzzle grid. checkerboard
2025-03-01 comment 0 1003
Course Introduction：There is no essential difference between H5 and HTML5, and H5 is the abbreviation of HTML5. HTML5 is the fifth major version of the hypertext markup language. It was officially released in 2014 and has added functions such as semantic tags, audio and video support, Canvas drawing, better form controls and mobile device adaptation. The name H5 is mostly used in informal occasions, such as mobile development discussions, marketing copy or code comments, and is widely used for its simplicity and convenience; in specific regions or industries, H5 may implicitly refer to mobile web pages or modern web page standards based on HTML5 technology; HTML5 should be used when formal writing, and H5 can be used when developers communicate or space is limited.
2025-07-14 comment 0 152
Course Introduction：Using H5's WebGL to achieve high-performance 2D graphics rendering is because WebGL is based on GPU and has hardware acceleration capabilities. It is more suitable for handling large amounts of graphics drawing and complex animation than Canvas2D. 1.WebGL is a browser interface based on OpenGLES, which runs on the GPU to improve graphics processing efficiency; 2. HTML5 provides the canvas container to carry WebGL content, achieving high-performance rendering without plug-ins; 3. Compared with Canvas2D, WebGL supports hardware acceleration and has stronger performance, especially suitable for frequent redrawing or graphics-intensive scenarios; 4. Developers can realize 2D graphics by obtaining WebGL context, writing shader code, creating buffers, setting projection matrix, etc.
2025-07-17 comment 0 455
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 0 682
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 0 832
Course Elementary 13787
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 82307
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 13154
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 24601
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 27461
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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