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 ...

Select Add email. You can create either a new Outlook.com email address or add an address that you already have. Then, select Add alias. After you’re returned to the previous screen, select Verify, and then follow the instructions that are provided. Or, select Add phone number. Enter the phone number that you want to use, and then select Next.

To cancel your subscription on your Xbox console: Press the Xbox button to open the guide. Go to Profile & system > Settings > Account > Subscriptions. Choose the subscription that you want to manage, and then follow the steps to cancel. If eligible, you may be prompted to initiate a refund for your subscription.

Manage account. Change the email address or phone number for your Microsoft account. Add or remove an Xbox profile. Delete your Microsoft account security info. Check your Microsoft account balance. Earn points with Microsoft Rewards. Update your Microsoft account if you’re moving to a new country or region. How to delete a child account.

若要手动从Windows 11 家庭版升级到Windows 11 专业版，请先检查运行的版本和激活状态：. 选择“ 开始 ”>“ 设置 ”>“ 系统 ”>“ 激活 ”。. 在“ 激活 ”页面顶部，可以看到你的版本：家庭版或专业版。. 你还将在“ 激活状态 ”下看到是否已激活。. 打开激活 ...

In Teams, go to Calendar , select a meeting, and then Meeting options . Tip: Meeting options will open in a new window on your default browser. For the best experience, use Edge to open all meeting options. In a meeting invitation, select Meeting options.

Copilot in Word will write, edit, summarize, give suggestions, and create alongside you. Try Copilot Pro for free to experience AI in Microsoft 365 apps. Get 1 month free. Learn what's possible with Copilot. Get answers to all of your Microsoft Word questions. Find Word help, how-to articles, training videos, tutorials, and more.

For Wi-Fi connection. Select Start > Settings > Network & internet > Wi-Fi and then select the Wi-Fi network you're connected to. Under Properties, look for your IP address listed next to IPv4 address. Open Wi-Fi setting.

What is: Multifactor Authentication. When you sign into your online accounts - a process we call "authentication" - you're proving to the service that you are who you say you are. Traditionally that's been done with a username and a password. Unfortunately, that's not a very good way to do it. Usernames are often easy to discover; sometimes ...

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 ...