✔ 最佳答案
For example on Cell A3
Press ALT+D+L
(or go to DATA->Data Validation)
[Validation criteria] you can choose [LIST]
Then for example in cell A1 to Cell A2 you have [Yes] [No] , then under [Source] you can choose cell A1:A2
then in your cell A3, you should able to see [Yes] and [No]
There's other settings to change so that other users could only choose [Yes] or [No] or type something else. You can just play around with this data validation funciton.