IF 函数 - 嵌套公式和避免错误 - Microsoft 支持
备注. 虽然 Excel 允许嵌套最多 64 个不同的 IF 函数，但不建议这样做。 原因如下。 要正确地构建多个 IF 语句需要花大量心思，并要确保其逻辑在直至结尾的每个条件下都能计算正确。
Applies To:
Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016, Excel Web App, Excel for Windows Phone 10
Windows 键盘快捷方式 - Microsoft 支持
在打开的应用之间切换 ：Alt + Tab. 打开"快速链接"菜单 ：Windows徽标键 + X. 锁定电脑： Windows 徽标键 + L. 根据你的硬件，可以使用徽标Windows + PrtScn 进行屏幕截图， 或使用Fn + Windows徽标键 + 空格键 。. 查看所有Windows 11快捷方式. 订阅 RSS 源. 了解常见键盘Windows ...
COUNT function - Microsoft Support
The COUNT function counts the number of cells that contain numbers, and counts numbers within the list of arguments. Use the COUNT function to get the number of entries in a number field that is in a range or array of numbers. For example, you can enter the following formula to count the numbers in the range A1:A20: =COUNT(A1:A20).In this example, if five of the cells in the range contain ...
Applies To:
Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
PowerPoint プレゼンテーションの音声の追加または削除 - Microsoft サポート
クリップを移動するには、オーディオ アイコンを選択し、スライド上の目的の位置にドラッグします。 1 つのスライドに複数のオーディオ ファイルを使用している場合は、スライド上のオーディオ ファイルと同じ場所にオーディオ アイコンを置くことをお勧めします。
Applies To:
PowerPoint for Microsoft 365, PowerPoint for Microsoft 365 for Mac, PowerPoint for the web, PowerPoint 2021, PowerPoint 2021 for Mac, PowerPoint 2019, PowerPoint 2019 for Mac, PowerPoint 2016
跨设备设置屏幕时间限制 - Microsoft 支持
跨设备设置屏幕时间限制. Microsoft Family Safety中的屏幕时间限制是平衡家庭组中在线习惯的好方法。. 你决定家庭成员何时以及多长时间可以使用其连接的 Windows、Xbox 和移动设备。. 限制可以根据需要具体- 每天使用其他计划或整周相同计划，通过允许更多时间 ...
Applies To:
Microsoft Family Safety
Request a refund for digital games | Xbox Support
Refunds are typically issued for requests meeting the following criteria: Requests are made within 14 days of the purchase date. Requests are for games in which you haven’t accumulated a significant amount of play time. Note As a limited exception, digital game products may be eligible for a refund within 30 days if you’re unsatisfied with ...
How to sign in to or out of Outlook.com - Microsoft Support
To sign out, go to Outlook.com. Select your account initials or account picture at the top corner of your Inbox. Select Sign out. Tips: If you don't see your picture at the top of screen, check to see if ad blocking is turned on. Sometimes this prevents the picture from showing. If you don't see see Profile or Account options, you can access ...
Applies To:
Outlook.com
使用 SUM 函數來加總範圍中的數字 - Microsoft 支援服務
以下公式使用兩個儲存格範圍 ：=SUM (A2:A4,C2:C3) 加總 A2:A4 和 C2:C3 範圍中的數字。. 按 Enter 即可取得合計 39787。. 建立公式的方式如下：. 在儲存格輸入 =SUM ，後面接著左括號 ( 。. 若要輸入第一個公式範圍，又稱為 引數 (公式必須運算的資料)，請輸入 A2:A4 (或是 ...
Applies To:
Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016
日本向けの認定サービス プロバイダーの連絡先情報を検索する
Surfaceを認定サービスプロバイダーに出す準備をする。. Surface for Service を送信する前に、Surface Diagnostic Toolkit を使用して一般的なソフトウェアの問題を解決してみてください。. 詳細については、「 Surface アプリと Surface Diagnostic Toolkit を使用して Surface の ...
How to sign in to or out of Outlook.com - Microsoft Support
To sign out, go to Outlook.com. Select your account initials or account picture at the top corner of your Inbox. Select Sign out. Tips: If you don't see your picture at the top of screen, check to see if ad blocking is turned on. Sometimes this prevents the picture from showing. If you don't see see Profile or Account options, you can access ...
Applies To:
Outlook.com