有些时候，你需要检查单元格是否为空白，通常是因为你可能不希望公式没有输入值就显示结果。. 此情况下，将 IF 与 ISBLANK 函数搭配使用：. 这表示如果（D2 为空白，则返回“Blank”，否则，将返回“Not Blank”）。. 还可以针对“Not Blank”条件同样轻松地使用 ...

Right-click (or press and hold) the desktop, point to View, and then select Large icons, Medium icons, or Small icons. Tip: You can also use the scroll wheel on your mouse to resize desktop icons. On the desktop, press and hold Ctrl while you scroll the wheel to make icons larger or smaller. For information on how to show or hide individual ...

When Smart charging is on, you’ll see a heart on the Battery icon in the following places—on the right side of the taskbar and in Power & battery settings. When your hover over the Battery icon with your mouse, it says “Fully Smart charged” and means the battery isn’t charging even though your device is still plugged in.

Find your Office product key. Office 365 Office 2019 Office 2016 Office 2013. Many tasks for Office products don't require a product key because your Microsoft account takes care of them instead. Using product keys with Office.

Windows ライセンス認証の方法. Windows 11 のコピーの入手方法に応じて、ライセンス認証を行うために、デジタル ライセンスまたは 25 文字のプロダクト キーのどちらかが必要になります。. いずれかがないと、デバイスのライセンス認証を行うことはできませ ...

Select the product you need help with. We'll show you self-help options first. Additional help is available if you need it, including live chat with a Microsoft specialist. Microsoft 365. Office. Windows. Xbox. Surface devices. Copilot.

Notes: If you're using the desktop version of PowerPoint on a Windows PC, see the PowerPoint Quick Start.. If you're using the desktop version of PowerPoint on a Mac, see Office for Mac Quick Start Guides and PowerPoint for Mac Help.

依次转到“ 设置及更多 ” >“ 设置 ”>“ Cookie 和站点权限 ”，以查看每个网站的列表，包括位置、Cookie、弹出窗口和媒体自动播放。. 旧版 Microsoft Edge 中的所有数据，包括历史记录、收藏夹、密码等。. 包括许可证、证书和密钥等。. 重启 Microsoft Edge 浏览器后 ...

若要打开或关闭 Microsoft Defender 防火墙，请执行以下操作：. 选择“ 开始 ” ，然后打开“ 设置 ” 。. 在“ 隐私和安全 ” 下面，选择“ Windows 安全 ” >“ 防火墙和网络保护 ”。. 打开 Windows 安全中心设置. 选择网络配置文件： 域网络 、 专用网络 或 公用网络 ...

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 ...