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Course Introduction：Creating a Gantt chart is actually not difficult, the key is to use Excel's bar chart function for visualization. 1. Prepare task data, including task name, start date and lasting days, and mark the task dependencies; 2. Insert stacked bar charts, hide the start date part, and only display the duration; 3. Adjust the coordinate axis to make the task order consistent, and set the horizontal axis to date or day units; 4. Optionally add the "Completed Days" column to mark the task progress with different colors, so as to intuitively display the overall task completion status.

2025-07-04 comment 0  164

Course Introduction：The H5 video player's control bar and user experience can improve flexibility and brand consistency through custom design. 1. The custom control bar needs to hide native controls, and use HTML CSS to build a UI, combining JavaScript to realize playback, pause, volume, progress and other functions. The basic components include playback/pause buttons, progress bars, time display, volume control and full-screen switching buttons. 2. The key points of improving interactive experience include optimizing the progress bar drag and click jump logic, using localStorage to save the volume state, and adapting to the full-screen mode style. 3. Mobile optimization should be muted by default and provide an unmute button, ensure that the operation area is large enough, design advanced interaction reasonably, avoid overlaying too much floating layer, and add webk

2025-07-16 comment 0  303

Course Introduction：To handle HTML5 media playback events, you need to listen to play, pause, ended, timeupdate and other events and respond with JavaScript. Pay attention to the browser's automatic playback restrictions when controlling playback behavior, and use timeupdate to synchronize progress. For example: 1) Update the UI or record duration through addEventListener by binding play, pause and other events; 2) When calling .play()/.pause() to control the play state, errors need to be captured to deal with user gestures or mute requirements; 3) Listen to the timeupdate event to realize time display or progress bar update to improve the interactive experience.

2025-07-09 comment 0  675

Course Introduction：Custom video players can be implemented through HTML, CSS and JavaScript. The specific steps are as follows: 1. Build the infrastructure with HTML, including video tags and control buttons; 2. Use CSS to hide native controls and beautify the appearance, and set hover effects; 3. Add interactive functions through JavaScript, such as playback/pause, time update, progress bar drag; 4. Pay attention to compatibility, preload, mobile adaptation and accessibility issues. The entire process requires the collaboration of the three to achieve complete functions and good experience.

2025-06-27 comment 0  157

Course Introduction：The key to making a timeline in Excel is to organize your data and select the right chart type. First, organize the data structure, including at least three columns: task name, start time and end time; second, insert the "cluster bar chart" as the timeline chart, and set the horizontal axis to date format to correctly display the time sequence; finally, beautify the chart by removing the legend, adjusting the colors, hiding grid lines, adding data labels, etc., and you can also insert shapes to connect the task to form a flow chart effect. In addition, you can quickly display time progress in a table using the "data stripes" in the conditional format, suitable for informal occasions.

2025-07-17 comment 0  241

Course Elementary  13770

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  82280

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  13144

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  24589

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  27446

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.