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Use voting buttons in messages - Microsoft Support
In an open message, on the Message tab, in the Respond group, click Vote, and then click the option that you want. The sender can see all responses in a table. On one of the response messages, click the The sender responded line in the message header, then click View voting responses.
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook 2013
IFERROR 函数 - Microsoft 支持
IFERROR (value, value_if_error) IFERROR 函数语法具有下列参数：. 价值 必需。. 检查是否存在错误的参数。. value_if_error 必需。. 公式计算结果为错误时要返回的值。. 评估以下错误类型：#N/A、#VALUE！. 、#REF！. 、#DIV/0！.
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