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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。

Get in touch with Microsoft Support for assistance with Microsoft products and services.

Узнайте, как добавлять учетные записи пользователей в Windows 10 и Windows 11. В каждой учетной записи хранятся файлы пользователя, избранное браузера и личный рабочий стол пользователя.

أصبح Hotmail الآن Outlook.com. تعرّف على كيفية تسجيل الدخول للوصول إلى حساب بريدك الإلكتروني على Outlook.com أو Hotmail أو Live أو MSN.

MSN provides you with three quick ways to navigate through MSN to easily find what you need: The Mega menu located at the top left side of the page, brings you every section in just one easy step.

Ottenere assistenza per l'accesso, la modifica delle password, la creazione e l'invio di posta elettronica, l'eliminazione di posta elettronica, la creazione di cartelle e altro ancora in Outlook sul Web.

Press and hold (or right-click) the MP4 file you want to play, select Open with, and then choose your preferred file player from the list of applications.

Press the Start button , and then enter store into the search bar.; Choose Microsoft Store from the results to open the app.; Select your account in the top-right corner of the screen, and then select Redeem code or gift cards.; Enter the 25-character code, select Next, and then follow the prompts.

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