Get help and learn how to use Skype with Microsoft's official support page.

在演示过程中打开或关闭该功能. 如果是在演示过程中要打开或关闭该功能，请在“幻灯片放映”视图或“演示者视图”中单击主幻灯片下面工具栏上的“切换字幕”按钮： 在“幻灯片放映”视图中： 在“演示者视图”中： 也可以从右键单击菜单或使用快捷键 j 来开关字幕功能。

Ink equations. Including math equations has gotten much easier. Now, you can go to Insert > Equation > Ink Equation, any time you want to include a complex math equation in your workbook.If you have a touch device, you can use your finger or a touch stylus to write math equations by hand, and Excel will convert it to text.

View more Microsoft account help topics. Need more help? Contact Support. For technical support, go to Contact Microsoft Support, enter your problem and select Get Help.If you still need help, select Contact Support to be routed to the best support option.

提示: 如果已设置语音识别，请按 Windows 徽标键 +Ctrl+S 打开语音识别，即可使用它。 如果想要重新训练计算机以识别你的声音，请按 Windows 徽标键 ，键入“ 控制面板 ”，然后在结果列表中选择“控制面板”。 在“控制面板”中选择“轻松使用”>“语音识别”>“训练计算机以提高其理解能力”。

Learn more about updates for Windows 10 version 1903, including improvement and fixes, any known issues, and how to get the update.

Learn how to download, install, and configure Language Accessory Packs for Microsoft 365 for additional display, help, and proofing tools.

Training: With Microsoft Forms, you can create surveys, quizzes, and polls, and easily see results as they come in. When you create a quiz or form, you can invite others to respond to it using any web browser, even on mobile devices. As results are submitted, you can use built-in analytics to evaluate responses. Form data, such as quiz results, can be easily exported to Excel for additional ...

症状. _xlfn。 prefix 显示在公式中的函数前面。 计算公式时，会显示 #NAME？ 。 原因. Excel 工作簿包含当前运行的 Excel 版本中不支持的函数。

如果出现“让我们开始吧”屏幕，其中包含试用、购买或激活 Office 的选项，这意味着新电脑安装的 Office 为 Microsoft 365 家庭版 1 个月试用版。只有支付 Office 产品密钥卡的相关费用，才会从电脑制造商处收到密钥。 你可开始试用 Microsoft 365 家庭版，也可购买 Office。