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Course Introduction：Quick solution to disappearing the Mac mouse cursor and root cause analysis Your Mac cursor suddenly disappears and cannot be displayed even if you move the mouse or click? Don't worry, this article will provide a series of quick fixes and in-depth analysis to help you retrieve your disappearing cursor. First, try some simple actions: right-click, click and drag anywhere on the screen, or check whether the network connection is stable (weak networks may cause cursor abnormality). MacKeeper's Find and Repair tool is just the first step. Let's dive into the reasons and solutions for the disappearance of the Mac mouse cursor. Reasons for the Mac mouse cursor disappearing: Multi-monitor settings: The cursor may be lost when moving between monitors, check other screens and corners of the screen. Monitor settings

2025-04-03 comment 0  877

Course Introduction：SublimeText's multi-cursor editing feature allows efficient code editing in a variety of ways. First, hold down Alt (Windows/Linux) or Option (Mac) and click to add multiple cursors; secondly, press Ctrl Shift L (or Cmd Shift L) after selecting the text to edit all matches at the same time; thirdly, use Shift Alt to drag the mouse to achieve column selection, and edit multiple rows vertically; in addition, you can gradually expand the selected instance through Ctrl D (or Cmd D), press Esc to exit the multi-cursor mode, and press Ctrl U (or Cmd U) to undo the last cursor addition. These techniques greatly improve the efficiency of code modification.

2025-07-04 comment 0  774

Course Introduction：SublimeText's column selection mode quickly selects rectangular areas through keyboard and mouse combinations to achieve simultaneous editing of multiple rows. Specific methods include: 1. Drag the Alt mouse on Windows/Linux, and drag the Option mouse on macOS; 2. Select the exact box to use Shift Alt (Windows/Linux) or Shift Option (macOS) to add mouse clicks; 3. Keyboard shortcut Ctrl Alt up/down arrow (Windows/Linux) or Cmd Option up/down arrow (macOS) to add vertical cursor to simulate column selection effect. After entering this mode, the input, deletion, copy and paste operations are all used for all selections.

2025-07-19 comment 0  536

Course Introduction：In AutoCAD, you can adjust the cursor size by the following methods: 1. Enter the command CURSORSIZE and set the percentage value from 5 to 20 to adjust the cross cursor size; 2. Open the "Sketch Settings" dialog box, drag the "Tag Size" slider in the "Object Snap" tab to adjust the visual effect of the capture mark; 3. Modify the "Pickup Box Size" in the "Select Set" tab of the "Options" dialog box. It is recommended to set the appropriate value between 1 and 50 according to the mouse accuracy and screen resolution to improve selection efficiency.

2025-07-08 comment 0  749

Course Introduction：Transform effect is an independent video effect used in PremierePro to adjust clip position, zoom, rotation and other attributes, suitable for local adjustments and simple animations. 1. It is located in the "Deformation" category under the "Effect Controls" panel and can be superimposed on specific layers; 2. When using it, you need to drag the effect to the clip and manually adjust the parameters, paying attention to the position in pixels; 3. It is often used in scenes such as local scaling, picture flip, and multi-layer synthesis and fine-tuning; 4. It is recommended to use the "Motion" panel for more refined control for complex animations.

2025-07-20 comment 0  744

Course Elementary  13795

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  82321

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  13157

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  24603

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  27463

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.