题目
Dim sales (—— ) As Long
Private Sub Form__Load ()
open “ sales.txt ” For Input AS 1
For k=1 To 12
Input 1,sales (k )
Next k
Close 1
End Sub
Private Sub ——(Index, AS Integer )
Dim sum AS Long ,k AS Ingeger,month AS Ingeger
sum=0
month=Index*——
For k=1 To 3
month=month+1
sum=sum+sales (month )
Next k
Label1.Caption=Opl (Index ) . Caption & “ 销售总额: ”
Text1=sum
End Sub
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