计算两个日期之间的差值 - Microsoft 支持
如何使用 Excel 中的 DATEIF 函数计算两个日期之间的天数、月数或年数。
Applies To:
Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016
Create and add an email signature in Outlook - Microsoft Support
How to create or edit your Outlook signature for email messages. Include your signature, text, images, electronic business card, and logo.
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Office for business, Office 365 Small Business, Microsoft 365 admin, Outlook on the web, Outlook.com, New Outlook for Windows, Outlook on the web for Exchange Server 2016, Outlook on the web for Exchange Server 2019
Windows sign-in options and account protection - Microsoft Support
Learn how to access and manage your Windows sign in options. Use a password, Windows Hello, or a security key to unlock your device.
将 Windows 电脑用作移动热点 - Microsoft 支持
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。
Manage devices used with your Microsoft account
Learn how to manage your Microsoft devices. Add, remove, register, or rename a device on your Microsoft account.
Applies To:
Microsoft account dashboard
显示或隐藏公式 - Microsoft 支持
设置单元格显示器中包含的公式，而非公式结果。 保护单元格，防止公式显示或更改。
Applies To:
Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016
Meet Windows 11: The basics - Microsoft Support
Get to know your way around Windows 11, from where to search to how to stay organized. Watch the video and read tips about new features.
在幻灯片放映中自动播放视频 - Microsoft 支持
另一个选项：按单击顺序播放. 从 PowerPoint 2016 开始，还有一个视频播放选项可用： 按单击顺序播放。设置该选项后，单击幻灯片上的任意位置转到下一步 (或按空格键、向右键或其他前进到下一步) 时，视频将播放。
Applies To:
PowerPoint for Microsoft 365, PowerPoint 2021, PowerPoint 2019, PowerPoint 2016
Aanmelden bij Hotmail - Microsoft Ondersteuning
Hotmail is nu Outlook.com. Meer informatie over hoe u zich aanmeldt voor toegang tot uw Outlook.com-, Hotmail-, Live- of MSN-e-mailaccount.
Applies To:
Outlook.com
Come accedere a Hotmail - Supporto tecnico Microsoft
Hotmail è ora Outlook.com. Scopri come accedere a Outlook.com per usare l'account di posta elettronica Outlook, Hotmail, Live o MSN.
Applies To:
Outlook.com