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。

Modify default settings for a camera. Select Start . Type manage cameras in the search bar on the Start menu, and then select Manage cameras from the results. Select the camera from the list of connected cameras. Windows will start the camera, display a preview, and show controls to adjust various settings. Use the controls and adjust the image.

iPhone から PC に写真やビデオをインポートする. 写真を iPhone から PC に転送します。. 最初に、ファイルを転送できる USB ケーブルを使用して iPhone を PC に接続します。. スマートフォンの電源を入れ、ロックを解除します。. デバイスがロックされていると ...

Geben Sie im Suchfeld auf der Taskleiste Datenträgerbereinigung ein, und wählen Sie dann Datenträgerbereinigung aus der Ergebnisliste aus. Wählen Sie das zu bereinigende Laufwerk aus und wählen Sie dann OK aus. Unter Zu löschende Dateien, wählen Sie die Dateitypen aus, die entfernt werden sollen. Wählen Sie den jeweiligen Dateityp aus ...

Upgrade to Windows 11: FAQ. An upgrade differs from an update in that it moves your PC from a previous version of Windows—such as Windows 10—to Windows 11. This FAQ is intended to answer questions about upgrading to Windows 11. An update ensures you have the most recent features and security improvements for your current version of Windows.

更改或重置 PIN. PIN 是用户定义的一组数字或数字和字母的组合，可用于登录 Windows 设备，而不是密码。. 你的 PIN 安全地存储在你的设备上，它不会在任何地方传输，也不会存储在服务器上。. 这使得它比传统密码更安全。. 如果要更改 PIN，或需要重置 PIN，可以 ...

A Data Model typically contains several tables arranged in a relationship. You load a query to a Data Model by using the Load To command to display the Import Data dialog box, and then selecting the Add this data to the Data Model check box.For more information about Data Models, see Find out which data sources are used in a workbook data model, Create a Data Model in Excel, and Use multiple ...

If you're working in Page Layout view ( View > Workbook Views > Page Layout ), you can specify a column width or row height in inches, centimeters and millimeters. The measurement unit is in inches by default. Go to File > Options > Advanced > Display > select an option from the Ruler Units list. If you switch to Normal view, then column widths ...

Here's how to do this in Windows 11: Select Start > Settings > System > Sound. In Input, select a microphone to see its properties. In Input volume, make sure the blue bar adjusts as you speak into the microphone. If it doesn't, go to Test your microphone and Start test. This will help you troubleshoot any issues with your microphone.

This update provides latest updates for Windows Security platform, which is comprised of the Windows Security app and its underlying service. To obtain the current version of Windows Security app, please run powershell command below: Get-AppPackage Microsoft.SecHealthUI.