在 Excel 中将 IF 与 AND、OR 和 NOT 函数配合使用. 在 Excel 中，IF 函数允许通过测试某个条件并返回结果（如果该条件为 True 或 False），在值和预期值之间进行逻辑比较。. 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 ...

By default, File Explorer opens to Quick Access. You can set a folder to show up in Quick access so it'll be easy to find. Just right-click (or long-press) it and select Pin to Quick access. Unpin it when you don’t need it there anymore by right-clicking (or long-pressing) it and selecting Unpin from Quick access.. If you want to see only your pinned folders, you can turn off recent files or ...

You might also see a notification in Settings to let you know the requirements are not met. If you're experiencing issues after upgrading to Windows 11 and your device does not meet the minimum system requirements, we recommend you go back to Windows 10. To go back to Windows 10, select Start > Settings > System > Recovery > Go back .

如果这些步骤都无法解决蓝屏错误，请尝试“获取帮助”应用中的“蓝屏疑难解答”：. 在 Windows 中，打开 “获取帮助 ”。. 在“获取帮助”应用中，键入 “排查 BSOD 错误 ”。. 按照获取帮助应用中的引导演练进行操作。. 注意: 如果你不在 Windows 设备上，可以 ...

If you're a small business owner. Find the information you need to build, run, and grow your small business with Microsoft 365. Visit Small business help and learning. Get help and support for Microsoft Edge. Find Microsoft Edge support content, how-to articles, tutorials, and more.

Mail identified as possible junk email can be automatically moved to the Junk Email folder. Any malware—potentially malicious software or code—is disabled. Note: Many of the features in the new Outlook for Windows work the same or similarly as Outlook on the web. If you’re interested in trying the new experience, check out Getting started ...

Here’s how to get started: Go to Office.com. Click PowerPoint. Create a new, blank presentation, start with a template, or open an existing file. When you start with a new, blank presentation, PowerPoint automatically saves it to OneDrive with a default name, such as Presentation 1. To rename your presentation, do the following:

首先在“获取帮助”应用中运行自动音频疑难解答。. “获取帮助”将自动运行诊断，并采取正确的步骤来解决大多数音频问题。. 打开“获取帮助”. 如果“获取帮助”应用无法解决声音或音频问题，请尝试列出的可能解决方案：. Windows 11 Windows 10. 1. 检查扬声器 ...

Click Start , type intl.cpl in the Start Search box, and then press ENTER. On the Keyboards and Language tab, click Change keyboards. Click Add. Expand the language that you want. For example, expand French (Canada). Expand Keyboard list, click to select the Canadian French check box, and then click OK. In the options, click View Layout to ...

How to report a concern or contact Bing. Turn search history off or on. Turn search suggestions off or on. Cash donations on Bing. Ethical shopping on Microsoft Bing. FAQ about E-tree on Microsoft Edge and Microsoft Weather. Add Microsoft Start Weather to your blog or site.