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。

The display language you select changes the default language used by Windows features, such as Settings and File Explorer. Select Start > Settings > Time & Language > Language.

At any time, you can change the time zone in Outlook so that it matches your current geographic location. Changing the time zone in Outlook is the same as changing it in the Windows Control Panel, and the change is reflected in the time displays in all other Microsoft Windows-based programs.

Note: This topic is for Microsoft 365 for business.If you have an Office for home product and you're looking for where to install Microsoft 365, see Install or reinstall Office on a PC or Mac.To see what Office for home products you have a license for, sign in with your Microsoft account to Services & subscriptions.

Windows 11, version 23H2 ; July 25, 2024—KB5040527 (OS Builds 22621.3958 and 22631.3958) Preview; July 9, 2024—KB5040442 (OS Builds 22621.3880 and 22631.3880)

Describes the .NET Framework 4.6.2 offline installer for Windows 7 SP1, Windows 8.1, Windows 10 (Version 1507), Windows 10 November Update (Version 1511), Windows 10 Anniversary Update (Version 1607), Windows Server 2008 R2 SP1, Windows Server 2012, and Windows Server 2012 R2.

Here’s how to reinstall Microsoft Edge whether you’re a Windows or Mac user: Open any working browser. (Note: If you’re a Windows user and your Microsoft Edge is not currently functioning, to open Internet Explorer, type IE in the search box on the taskbar and then select Internet Explorer from the results.Or press the Windows logo key on your keyboard and then type IE in the search bar.)

Compress pictures in your presentation. Select a picture in your document. The Picture Format tab appears.

Windows 11, version 21H2; July 9, 2024—KB5040431 (OS Build 22000.3079) June 11, 2024—KB5039213 (OS Build 22000.3019) May 14, 2024—KB5037770 (OS Build 22000.2960)

Inserting ASCII characters. To insert an ASCII character, press and hold down ALT while typing the character code. For example, to insert the degree (º) symbol, press and hold down ALT while typing 0176 on the numeric keypad.