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在 Excel 中将 IF 与 AND、OR 和 NOT 函数配合使用 - Microsoft 支持
但如果需要测试多个条件,例如我们假设所有条件都需要为 True 或 False (AND),或只有一个条件需要为 True 或 False (OR),或者如果想要检查某个条件是否不 (NOT) 符合你的条件,这时该怎么做呢?这三个函数均可以单独使用,但它们更常见于与 IF 函数成对使用。
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016, Excel Web App, Excel for Windows Phone 10
Finding your BitLocker recovery key in Windows - Microsoft Support
Where can I find my BitLocker recovery key? BitLocker likely ensured that a recovery key was safely backed up prior to activating protection. There are several places that your recovery key may be, depending on the choice that was made when activating BitLocker:
屏幕镜像和投影到电脑或无线显示器 - Microsoft 支持
注意: 无线显示应用在运行 Windows 11 版本 22H2 及更高版本的设备上可用。如果运行的是早期版本的 Windows,请在任务栏的搜索框中输入 “连接”,然后在结果列表中选择“连接”,从而启动 “连接” 应用。 若要了解正在运行的 Windows 版本,请参阅 我运行的是哪个版本的 Windows 操作系统?
将 Windows 家庭版升级到 Windows 专业版 - Microsoft 支持
了解如何从 Windows 10 家庭版升级到 Windows 10 专业版或从 Windows 11 家庭版升级到 Windows 11 专业版,包括如何使用有效产品密钥或 Microsoft Store。
将两个或更多个单元格的文本合并到一个单元格 - Microsoft 支持
如何在 Excel 中将两个或多个单元格中的文本或数据合并为一个单元格。
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016, Excel Mobile
Start the presentation and see your notes in Presenter view
When your computer is connected to a projector and you start the slide show , Presenter View appears on your computer's screen, while only the slides appear on the projector screen.In Presenter view, you can see your notes as you present, while the audience sees only your slides.
Applies To: PowerPoint for Microsoft 365, PowerPoint for Microsoft 365 for Mac, PowerPoint 2021, PowerPoint 2021 for Mac, PowerPoint 2019, PowerPoint 2019 for Mac, PowerPoint 2016
Contact Us - Microsoft Support
Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.
Download and install or reinstall Office 2019, Office 2016, or Office ...
Note: The steps to install the 2019, 2016, or 2013 versions of Office Professional Plus, Office Standard, or a stand-alone app such as Word or Project might be different if you got Microsoft 365 through one of the following: Microsoft Workplace Discount Program (formerly known as Home Use Program): If you bought Microsoft 365 for personal use through your company, see Install Office through ...
Applies To: Office 2019, Office 2016, Office 2016 for Mac, Office 2013
更改屏幕亮度(Windows - Microsoft 支持
如果你没有台式电脑并且滑块未显示或不起作用,请尝试更新显示驱动程序。 在任务栏上选择"搜索",键入"设备管理器",然后从结果列表中选择"设备管理器"。在"设备管理器"中,选择"显示适配器",然后选择显示适配器。长按 (或右键) 显示适配器名称,然后选择"更新驱动程序"并按照说明操作。
阻止 Microsoft Edge 中的弹出窗口 - Microsoft 支持
弹出窗口阻止程序无法阻止哪些弹窗? 如果在启用此功能并且尝试了上面列出的解决方案后,网页中仍然显示了弹出窗口,则它们可能是网站广告,以弹出窗口的样子呈现。
Applies To: Microsoft account dashboard