1. 快速隐藏和显示Dock 使用快捷键 Command + Option + D，Easily hide or show the application icon bar below the desktop。 2. 反转屏幕颜色 使用快捷键 Command + Option + Control + 8，Switch the screen's color for a better nighttime experience or to accommodate visually impaired users。 3. 快速查看和管理运行中的应用程序 按住 Command 键并点击 Tab 键，Ability to quickly scroll through currently running applications。at the same time，Use Command + Q Quickly exit the current application，Use Command + H 最小化...

Excel 2019 for Mac is a powerful spreadsheet software，Mastering these keyboard shortcuts can significantly improve your work efficiency： 1. F2 / Control + U: Enter the cell editing state (touch bar Mac needs to adjust the fn function commonly used) 2. Command + C: Copy selected content 3. Command + V: Paste copied content 4. Command + X: Cut selected content 5. Command + Z: Undo the previous action 6. Command + A: Select all content in the current worksheet 7. Shift + ...

The following are some commonly used tips and practical functions about Word Mac： one、Commonly used techniques 1. 一键删除空格 •使用快捷键或查找替换功能来批量删除文档中的空格，For example： •shortcut key：Ctrl + H，Then enter "^w" in the Find what box，Click "Replace All"。 2. 一键删除空行 •删除文档中的空行，The steps are as follows： •shortcut key：Ctrl + H，Enter "^p^p" in the Find what box，Replace it with "^p"，Click "Replace All"。 two、Practical Tips 1. 一键删除页眉 •使用快捷键来快速删除页眉，For example： • shortcut key：Ctrl + Shif...