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使用 SUM 函数对区域中的数字求和 - Microsoft 支持
可以使用 简单的公式对) 一组单元格 (区域中的数字求和,但在处理多个数字时 ,sum 函数 更易于使用。 例如,=sum (a2:a6) 出现键入错误的可能性小于 =a2+a3+a4+a5+a6。 下面是使用两个单元格区域的公式: =sum (a2:a4,c2:c3) 对区域 a2:a4 和 c2:c3 中的数字求和。 可按 enter 获取总计 39787。
Applies To: Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016
Set screen time limits across devices - Microsoft Support
Screen time limits in Microsoft Family Safety are a great way to balance online habits within your family group. You decide when and for how long family members can use their connected Windows, Xbox and mobile devices.
Applies To: Microsoft Family Safety
Nachschlagen von Werten mit SVERWEIS, INDEX oder VERGLEICH
Tipp: Versuchen Sie, die neuen Funktionen XLOOKUP und XMATCH zu verwenden, verbesserte Versionen der in diesem Artikel beschriebenen Funktionen. Diese neuen Funktionen funktionieren in beliebige Richtungen und geben standardmäßig genaue Übereinstimmungen zurück, sodass sie einfacher und bequemer zu verwenden sind als ihre Vorgänger.
Applies To: Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016
Configure Windows Hello - Microsoft Support
Under Ways to sign in , you have three choices to sign in with Windows Hello:. Select Facial recognition (Windows Hello) to set up facial recognition sign-in with your PC's infrared camera or an external infrared camera
FILTER 函数 - Microsoft 支持
FILTER 函数将返回一个数组,如果该数组是公式的最终结果,则将溢出。 这意味着,当按“Enter”时,Excel 将动态创建相应大小的数组范围。如果支持数据位于 Excel 表格中,若使用结构化引用,则从数组范围中添加或删除数据时,数组将自动重设大小。 有关详细信息,请参阅关于溢出数组行为的此 ...
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel for iPad, Excel for iPhone, Excel for Android tablets, Excel for Android phones
如何在 Windows 中使用多台显示器 - Microsoft 支持
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。将无线显示适配卡连接到电视后,转到 Windows 10 电脑并选择“开始” >“设置” >“系统”>“显示器”,然后选择“连接到无线显示器”。
Fix Wi-Fi connection issues in Windows - Microsoft Support
Things to try first. Try these things first to help you fix or narrow down the connection problem. Run Get Help to troubleshoot and fix common connection problems. Right click the network icon in the right side of the taskbar and select Diagnose network problems or open Get Help for Network & Internet
Upgrade to Windows 10: FAQ - Microsoft Support
An upgrade moves your PC from a previous version of Windows—such as Windows 7 or Windows 8.1—to Windows 10. An upgrade can take place on your existing device, though Microsoft recommends using Windows 10 on a new PC to take advantage of the latest features and security improvements.
在 Microsoft Edge 中以 InPrivate 模式进行浏览 - Microsoft 支持
使用 Windows IME 键盘进行键入和墨迹书写时,可能会收集数据以改进语言识别和建议功能。 若要在 InPrivate 和普通浏览窗口中使用 Windows IME 键盘时停止墨迹书写和键入数据,请转到 Windows 设置 > 隐私 & 安全> 墨迹 & 键入个性化。
Applies To: Microsoft account dashboard
Change the power mode for your Windows PC - Microsoft Support
Note: You might not be able to change the power mode when a custom power plan is selected.If you can’t set the power mode in Power & battery settings, open Control Panel, select System and Security > Power Options, then choose a Balanced power plan.