Dim a(1 to 10)as integer

Pos=-1

i=1

do while i<=10

   if i mod 2=0 then a(i)=i*2 else a(i)=i

   i=i+1

loop

i=10

do while i>=1

  if a(i)=12 then Pos=i

  i=i-1

loop

该程序段运行后，变量Pos值是（   ）

请在下列程序代码的基础上按照要求设计该程序，完善程序中的划线部分。

Dim n As Integer, a1 As Integer, a2 As Integer, a3 As Integer

Function f(x as integer) As Boolean

 f=True

 For i=2 To Sqr(x)

   If x Mod i=0 Then {#blank#}1{#/blank#}

 Next i

End Function

Private Sub Command1_Click()

n={#blank#}2{#/blank#}

For a1=2 To n

 For a2=a1 To n

  For a3=a2 To n

   If{#blank#}3{#/blank#}And f(a1) And f(a2) And f(a3) Then

    List1.AddItem(Str(a1)+“ ”+Str(a2)+“ ”+Str(a3))

   End If

  Next a3

 Next a2

Next a1

End Sub

用户从Text1中输入计划人数，单击“入围划线”按钮Command1，面试分数线显示在文本框Text2 中，入围面试最终人数显示在 Text3中，进入面试考生的考号和笔试成绩显示在List2列表框中，如果成绩相同，则按考号从小到大的顺序显示。程序界面如图所示。

Dim kh(1 To 500) As String, cj(1 To 500) As Integer

Dim n As Integer ′参加考试总人数

Private Sub Form_Load()

Dim conn As New ADODB.Conncction

Dim rs As New ADODB.Recordset

conn.ConnectionString = “Provider=Microsoft.ACE.OLEDB.12.0；datasource=”+App.Path + ”\BSCJ.accdb”

conn.Open

Set rs.ActiveConnection = conn

rs.Open “select * FROM scoreinfo”

′本过程其他代码略

End Sub

Private Sub Commandl_click()

Dim m As Integer, i As Integer, j As Integer

Dim t1 As Integer, t2 As String, flag As Boolean

For i = 1 To n - 1

  For j = 1 To

    If cj(i) < cj(j) Then

      t1 = cj(i): cj(i) = cj(j): cj(j) = t1

      t2 = kh(i): kh(i) = kh(j): kh(j) = t2

    EleIf      ①      Then

      t2 = kh(i): kh(i) = kh(j): kh(j) = t2

    End If

  Next j

Next i

m =     ②     

If m <= n Then

  i = m

  flag = Flase

  Do While i < n And Not flag
    If cj(i) = cj(i + 1) Then

      i = i + 1

 Else

             ③     

 End If
  Loop

  Text2.Text = Str(cj(m))

  Text3.Text = Str(i)

  For j = 1 To i

    List2.Addltem kh(j) + “ ” + Str(cj(j))

  Next j

Else

  Text2.Text = “面试人数超过了总人数”

End If

End Sub