使用自定义列表对数据排序 - Microsoft 支持
在 Excel 中按一周的天数或一年中的月份对列表排序，或者按优先级排序。 或者，你可以为不适合按字母顺序排序的条目创建 ...
Applies To:
Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016
Use the SUM function to sum numbers in a range
Add the values in a range by using the Sum function in a formula (ranges meaning more than one group of cells).
Applies To:
Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016
在 Excel 中插入批注和备注 - Microsoft 支持
培训：在 Excel for Office 365 中，你可以使用“批注”与其他人进行对话，或者使用“笔记”来进行批注。 观看此视频以了解如何操作。
Applies To:
Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016
Create a presentation in PowerPoint - Microsoft Support
Training: Watch and learn how to create a PowerPoint presentation, add/format text, and add pictures, shapes, and/or charts.
Applies To:
PowerPoint for Microsoft 365, PowerPoint 2021, PowerPoint 2019, PowerPoint 2016
加入 Teams 会议 - Microsoft 支持
使用我们的分步指南轻松加入 Teams 会议。 了解如何通过日历、拨入号码或 Web 加入 Teams 会议。
Applies To:
Microsoft Teams
How to recover a hacked or compromised Microsoft account
Learn how to recover a hacked or compromised account, what to do next, and how to prevent your account from being compromised in the future.
Sign in to sync Microsoft Edge across devices
With Microsoft Edge, you can turn on sync to browse the web on all your devices, keep your favorites organized, and more.
在 Word 中向页眉或页脚添加页码 - Microsoft 支持
在 Word 中向现有页眉或页脚添加页码。
Applies To:
Word for Microsoft 365, Word for Microsoft 365 for Mac, Word for the web, Word 2021, Word 2021 for Mac, Word 2019, Word 2019 for Mac, Word 2016
在 Microsoft Edge 中以 InPrivate 模式进行浏览 - Microsoft 支持
如果不希望在电脑上保存浏览数据，Microsoft Edge InPrivate 浏览功能。
Applies To:
Microsoft account dashboard
Use the On-Screen Keyboard (OSK) to type - Microsoft Support
Learn how to use the On-Screen Keyboard (OSK) instead of a physical keyboard to type and enter text on your PC.