Try these things to troubleshoot network connection issues in Windows 11. Make sure Wi-Fi is on. Select Start > Settings > Network & internet, then turn on Wi-Fi.Next, select More options (>) next to Wi-Fi, then select Show available networks.If a network you expect to see appears in the list, select it, then select Connect. Open Wi-Fi settings

数组公式是可以对数组中的一个或多个项执行多个计算的公式。 可以将数组视为值的行或列，也可以将数组视为值行和列的组合。 数组公式可以返回多个结果或单个结果。 ... 这个特定的数字选择没有什么特别之处，我们只是选择了 1-5 以外的其他内容来区分。 ...

Explore the new and refreshed apps of Windows 11, from Photos to Microsoft Store. Watch the video and read tips to find tools to stay creative and productive, whether on your phone or on your PC.

To increase security and performance, Windows 11 in S mode only runs apps from the Microsoft Store. If you want to install an app that isn't available in the Microsoft Store, or if you have Windows 10 Pro, Enterprise, or Education and want to upgrade to Windows 11, you'll need to permanently switch out of S mode.

如果使用的是 Excel 表，“ 分类汇总 ”命令将显示为灰色。 若要在表中添加小计，必须先将表转换为普通数据范围，然后添加小计。 请注意，这将从数据中删除除表格格式之外的所有表功能。 或者，可以创建 数据透视表。

This is a subscriber-only, Microsoft 365 feature. Find your version. Design ideas for one photo Applies to: PowerPoint for Microsoft 365 Current Channel: Version 1511 or later Semi-Annual Enterprise Channel: Version 1602 or later Multiple photos, color extraction, and facial recognition

Windows 10 puts notifications and quick actions in Action Center—right on the taskbar—where you can get to them instantly. Select Action Center on the taskbar to open it. (You can also swipe in from the right edge of your screen, or press Windows logo key + A.). Notifications at a glance

Using clipboard. When you copy content on your PC, it’s automatically copied to your clipboard for you to paste. You can paste multiple items from your clipboard history, and you can also pin the items you tend to use all the time and sync your clipboard history to the cloud.

讲述人是内置于 Windows 11 中的屏幕阅读应用程序，因此无需下载或安装任何内容。 本指南介绍如何将讲述人与 Windows 以便开始使用应用、浏览 Web 等。 在目录下方，有一个章节专门介绍“讲述人”的最近更新。 注意：本指南以Word文档的形式提供，PDF (仅提供 ...

若要将其关闭，请将设置切换为“关闭”。 关闭 Microsoft Defender 防火墙可能会使设备（以及网络，如果有）更容易受到未经授权的访问。