To count numbers or dates that meet a single condition (such as equal to, greater than, less than, greater than or equal to, or less than or equal to), use the COUNTIF function. To count numbers or dates that fall within a range (such as greater than 9000 and at the same time less than 22500), you can use the COUNTIFS function. Alternately, you can use SUMPRODUCT too.

Make the everyday easier with Windows 11. When there's a lot to do, Windows 11 helps you get it done. With intuitive navigation and new multitasking tools, it brings you the performance you want and the security you need.

Learn how to join a Microsoft Teams meeting if you don't have an account. Join a Teams meeting as a guest in the Windows app or on the web.

1. 使用Microsoft帐户登录. 系统将提示你使用 Microsoft 帐户登录 . 如果移动设备上已有Microsoft帐户，系统会要求确认帐户，然后单击“ 继续”。 如果你的移动设备上没有现有的Microsoft帐户，系统会要求你登录帐户或创建一个新帐户，然后单击“继续”。 2.

默认体验是文件和数据将随新的安装一起转移。 但是，我们始终建议在安装新 Windows 版本之前备份文件。 如果已将文件同步到 OneDrive，可能不需要执行任何其他操作来创建备份。

Digital goods like apps, games, add-on content, subscriptions, movies, TV shows, and books aren't returnable unless the offer for applicable law states that you're eligible for a refund.

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.

Tip: To change where your application automatically saves your templates, click File > Options > Save and type the folder and path you want to use in the Default personal templates location box. Any new templates you save will be stored in that folder, and when you click File > New > Personal, you'll see the templates in that folder.

Merge Formatting (M) This option discards most formatting that was applied directly to the copied text, but it retains formatting that is considered emphasis, such as bold and italic, when it is applied to only a portion of the selection.The text takes on the style characteristics of the paragraph where it is pasted. The text also takes on any direct formatting or character style properties of ...

注意: 如果设备上发现兼容性问题会中断使用 Windows 11 的体验，我们会暂时延迟升级，直到问题得到解决。兼容性保障措施有助于确保在升级时获得最佳体验，并且当关键应用或驱动程序尚不兼容时，工作效率不会中断。