You can use any phone number that can receive text messages; it doesn’t need to be associated with your account. We won't use or give out the phone number, and the code sent to it will expire after 10 minutes.

Offline access in the new Outlook for Windows You can use the new Outlook for Windows even when you’re not connected to the internet by enabling offline access.

Need help with an Xbox console, an Xbox game, or Xbox network? Find out how to get in touch with us.

Δοκιμάστε αυτές τις λύσεις, αν δεν μπορείτε να εισέλθετε στον λογαριασμό ηλεκτρονικού ταχυδρομείου Outlook.com, Hotmail, Live ή MSN ή δεν είστε βέβαιοι πώς να εισέλθετε ή να εξέλθετε.

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.

Join a Teams meeting on the web. Don't have the Teams app? You can still join a Teams meeting. In your email invite, select Join the meeting now.. You can also use a dial-in number and conference ID from the email to call in.

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。

groupby 函数允许通过公式创建数据摘要。它支持沿一个轴进行分组并聚合关联的值。 例如，如果你有一个销售数据表，则可以按年份生成销售摘要。

Why does my reading pane have a dark background? When dark mode is turned on, the reading pane has a dark background to reduce eye strain. You can make the reading pane brighter by selecting at the top of the reading pane. If you don't see the button, select .

提示: 如果你使用的是无线显示适配卡，请在较新的电视上连接到 HDMI 端口，然后通过无线方式将电脑与其连接。将无线显示适配器连接到电视后，请转到 Windows 11 电脑上，按 Windows 徽标键 + K 打开投放，然后选择无线显示适配器。