Private Sub Command1_Click()

  Dim s As String, a As String, t As String

  s = Text1.Text: t = ""

  For i = 1 To Len(s)

    a = Mid(s, i, 1)

    If a >= "0" And a <= "9" Then

      t = t + a

    ElseIf a = "!" Then

      t = ""

    ElseIf t <> "" Then

      List1.AddItem t

    End If

  Next i

End Sub

在文本框Text1中输入“12+23=35!456Ye”，单击按钮“Command1”后，在列表框List1中显示的结果是（  ）

a = 3

b = 9

c = a + b

If c = 12 Then py = "正确" Else py = "不正确"

分析该程序段，下列说法正确的是（  ）

PRIVATE SUB FORMCLICK

  FOR I = 3 TO {#blank#}1{#/blank#}

     F=0

     FOR J= 2 TO I-1

       IF {#blank#}2{#/blank#} THEN

        F=1

        EXIT FOR

       END IF

     NEXT J

  IF F=0   THEN {#blank#}3{#/blank#}

  {#blank#}4{#/blank#}

 END SUB

For i= 1 To 2

    For j=5 To i+1 Step-1

      If a(j) >a(i) Then

        t=a(j)：a(j)=a(i)：a(i)=t

      End If

    Next j

Next i

数组元素a(1)到a(5)的值依次为“33，24，45，16，77”，经过该程序段“加工”后，数组元素a(1)到a(5)的值依次为（  ）