Function fac(n As Integer) As Long

    fac = 1

    For i = 1 To n

fac = fac * i

    Next i

End Function

Private Sub Command1Click()

Dim s  As Long, j As Integer

For j = 1 To 10

Next

Text1.Text = Str(s)

End Sub

 方框中的正确语句是：（   ）

Dim m As Integer  'm 为模块级变量，用于记录随机数个数

Private Sub Command1Click()

Randomize

Timer1.Enabled = True

End Sub

Private Sub Timer1Timer()

Dim n As Integer

        ①      

If      ②      Then  

     List1.AddItem n

Else

     List2.AddItem n  

End If

m = m + 1          

If m = 20 Then       ③       

End Sub

在程序①、②、③划线处，填入适当的语句或表达式，把程序补充完整:

程序中①划线处应填入{#blank#}1{#/blank#}。

程序中②划线处应填入{#blank#}2{#/blank#}。

程序中③划线处应填入{#blank#}3{#/blank#}。

      PRIVATE SUB FORM-------CLICK()

      S=0

DIM I AS INTEGER, S AS INTEGER

      FOR I= 2 TO 100 {#blank#}1{#/blank#}

           S=S+{#blank#}2{#/blank#}

      NEXT I

      PRINT S

      END SUB