噢噢 明白了。其实你可以录一个宏看看。
Sub Macro1()
ActiveSheet.Range("A1").Select
With Selection.Validation
.Delete
.Add Type:=xlValidateList, AlertStyle:=xlValidAlertStop, Operator:= _
xlBetween, Formula1:="A,B,C" '这里是你的来源 '区域 "=$B$1:$B$3"
.IgnoreBlank = True
.InCellDropdown = True
.InputTitle = ""
.ErrorTitle = ""
.InputMessage = ""
.ErrorMessage = ""
.IMEMode = xlIMEModeNoControl
.ShowInput = True
.ShowError = True
End With
End Sub