可以用VBA实现,office2016要保存成xlsm格式的,才可以用宏
Private Sub Worksheet_Change(ByVal Target As Range)
If (Cells(Target.Row, Target.Column) = "") Then
Cells(Target.Row, Target.Column) = "/"
Target.HorizontalAlignment = xlCenter
Target.VerticalAlignment = xlCenter
End If
End Sub