只要其中一个表具有与所有其他表共有的字段，就可以使用 VLOOKUP 将多个表合并为一个表。 如果需要与使用较旧版本的 Excel 的人共享工作簿，且旧版本不支持将多个表作为数据源的数据功能，这会特别有用 - 通过将源合并到一个表中并将数据功能的数据源更改为新表，则该数据功能可在较旧版本的 ...

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If you get an email about unusual activity on your Microsoft account, or if you’re worried that someone else might have used your account, go to the Recent activity page.You’ll see when your Microsoft account was signed in during the last 30 days, along with any device or app-specific info.

Windows 11, version 22H2; July 25, 2024—KB5040527 (OS Builds 22621.3958 and 22631.3958) Preview; July 9, 2024—KB5040442 (OS Builds 22621.3880 and 22631.3880)

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下面是在你无法使笔记本电脑或平板电脑保持通电状态时，让电池续航更长久的三种方法。 使用节电模式。选择"开始" 按钮，然后选择"设置>"> 电池"。 默认情况下，当电池剩余电量低于 20%（可在“电池”设置中进行调整）时，节电模式便会自行打开。

和 Word 桌面程序类似，Word 网页版 会在用户键入时统计字数。 如果您没有在窗口底部看到字数统计，请确保您处于“编辑”视图（单击“编辑文档”>“在 Word 网页版 中编辑”）。 单击字数统计可以开启或关闭它。

常规格式是 Excel 在键入数字时应用的默认数字格式。大多数情况下，使用 “常规 ”格式设置格式的数字的显示方式与键入方式一样。 但是，如果单元格的宽度不足以显示整个数字， 则“常规 ”格式将舍入具有小数的数字。“常规”数字格式还对较大的数字（12 位或更多）使用科学计数（指数 ...

Select your profile picture at the top right of Teams. When your account manager opens, select your profile picture again.

Windows Photo Viewer isn't part of Windows 10, but if you upgraded from Windows 7 or Windows 8.1, you might still have it. To check, press and hold (or right-click) a photo in File Explorer, and select Open with.If Windows Photo Viewer isn't in the list, you cannot install it on Windows 10.