双击页眉或页脚区域以打开 “页眉 & 页脚 ”选项卡。. 选择“ 链接到上一个” 以关闭各部分之间的链接。. 选择 “删除页眉”或“删除页脚 ”。. 添加或更改页眉或页脚中的内容。. (如果要删除或更改页眉和页脚，则需要重复步骤 3-5。. 若要返回到文档正文 ...

登录到 Hotmail 或 Outlook.com. 若要登录到 Hotmail，需要提供 Microsoft 帐户用户名和密码。. 提示: 登录时，如果你希望下次直接进入你的邮箱，请在“保持登录?”提示中选择“ 是 ”（对于共享计算机，不建议这样做）。. 或者，选中“不再显示此内容”框，然后选择 ...

Hotmail est maintenant Outlook.com. Découvrez comment vous connecter pour accéder à votre compte de messagerie Outlook.com, Hotmail, Live ou MSN.

PC Health Check app brings you up to date info on your Windows device health, helping you take action to improve your device performance and troubleshoot performance problems. It is periodically updated based on customer feedback to help you make the most of your Windows PC.

If you’re having sound or audio problems, the following suggestions might help. The tips are listed in order, so start with the first one, see if that helps, and then continue to the next one if it doesn’t.

Find settings in Windows. Find your Windows settings in a snap! Select the Start button, then select Settings . From there, browse the categories or use search to find what you're looking for. Most apps have their own settings. In the app, select Settings to make app-specific changes.

If you changed your hardware in order to upgrade to Windows 11 and the system is not recognizing the change in a timely manner, this article explains how to initiate the assessment manually.

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。

Learn how to update drivers in Windows using Device Manager to update or reinstall a driver.

Training: Get started with SharePoint in Microsoft 365. At office.com, sign in to SharePoint, then select the SharePoint tile.