若要计算两个日期之间的差值，请使用 datedif 函数。 首先将开始日期放入一个单元格，并将结束日期置于另一个单元格。

提示: 如果您也選取了 [在我的手機上設定 Outlook Mobile] 的方塊，您將會前往一個可以輸入行動電話號碼的網站，而且您會收到下載 iOS 版 Outlook 或 Android 版 Outlook 的連結。安裝 Outlook Mobile 是隨時隨地保持最新狀態的絕佳方式。

Dynamic lock is a security feature that automatically locks your device when you are not around. It uses Bluetooth to pair with a phone, and locks the device when the Bluetooth signal drops below a certain level, indicating that you are no longer near your device.

Download our Formulas tutorial workbook. We've put together a Get started with Formulas workbook that you can download. If you’re new to Excel, or even if you have some experience with it, you can walk through Excel’s most common formulas in this tour.

You can create a simple formula to add, subtract, multiply or divide values in your worksheet. Simple formulas always start with an equal sign (=), followed by constants that are numeric values and calculation operators such as plus (+), minus (-), asterisk (*), or forward slash (/) signs.The following is an example of a simple formula.

Note: If you have previous activity history stored in the cloud before Windows 11 23H2 and 22H2, January 23, 2024-KB5034204 update, you can use the Clear activity history button to delete previously stored data in the cloud. Otherwise, your activity history will be automatically deleted within 30 days from when your data was last synced to the cloud

USB-C overview. With a USB-C connection, you can charge your Windows 11 PC, and you can also connect to other USB Type-C devices such as mobile phones, docking stations, display adapters, and other devices that have a USB-C port.

通过 Wi-Fi 与其他设备共享 Internet 连接，将 Windows 电脑变成移动热点。 你可以共享 WLAN、以太网或手机网络数据连接。

Download information. The following files are available for download from the .NET Download site: Download the Microsoft .NET Framework 4.8 offline installer package now.

To add a folder to the folder pane, do the following: In the left pane of Mail, Contacts, Tasks, or Calendar, right-click where you want to add the folder, and then click New Folder.