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向量形式. LOOKUP 的向量形式在单行区域或单列区域（称为“向量”）中查找值，然后返回第二个单行区域或单列区域中相同位置的值。. 语法. LOOKUP(lookup_value, lookup_vector, [result_vector]) LOOKUP 函数向量形式语法具有以下参数：. lookup_value 必需。LOOKUP 在第一个向量中搜索的值。

If you bought a physical item from the Microsoft Store, and we're shipping it to you, you can check the status on the order history page.If the status of your order is Shipped, check for a Track Shipping link below the status.Pending orders may require updated information or change of payment method. Recent purchases may not have a status right away.

语法. WEEKNUM(serial_number,[return_type]) WEEKNUM 函数语法具有下列参数： Serial_number 必需。代表一周中的日期。 应使用 DATE 函数输入日期，或者将日期作为其他公式或函数的结果输入。

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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： =IF(ISBLANK(D2),"Blank","Not Blank")

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公式还可包含下列所有内容或其中之一：函数、引用、运算符和常量。 公式的各部分 . 1. 函数：PI() 函数返回 pi 值：3.142.... 2. 引用：A2 返回单元格 A2 中的值。. 3. 常量：直接输入到公式中的数字或文本值，例如 2。. 4. 运算符：^（脱字号）运算符表示数字的乘方，而 *（星号）运算符表示数字的乘积。

Note: If you start to play a DVD or VCD in the Player Library, the Player automatically switches to Now Playing mode. The Blu-ray Disc format is not supported in Windows Media Player. To play a Blu-ray Disc, you need to use a non-Microsoft program that supports Blu-ray playback and a device capable of reading Blu-ray Discs.

Note: If you receive a prompt asking whether to allow the app to access your camera (iOS) or to allow the app to take pictures and record video (Android). select Allow so the authenticator app can access your camera to take a picture of the QR code in the next step.If you don't allow the camera, you can still set up the authenticator app as described in Manually add an account to the app.