If  a>b  Then

     max=a

   Else

     max=b

      .  

Dim x As Integer, y As Integer, s As Integer

    x=3:y=4

    If x<y And y<0 Then

        s=x Mod y

    ElseIf y>0 and y<x Then

        s=x*y

    ElseIf x=0 Or y=0 Then

        s=x+y

    Else

        s=0

    End If

该程序段运行之后，变量s的值为（  ）

For i = 1 To Len(Text1.Text)

  c = Mid(Text1.Text, i, 1)

  If c >= "0" And c <= "9" Then c = Chr(Asc(c) + 1)

  If c >= "A" And c <= "Z" Then c = Chr(Asc(c) + 32)

  s =s + c

Next i

若文本框Text1的内容为“Number 2468！”执行程序后，变量s的值为（   ）

Private Sub Command1_Click()

 Dim i As Integer

 Dim a(10)As Integer    ‘①

 For i=1 To 10    ‘②

  a(i)=Rnd* 100    ‘③

 Next i

 Label1.Caption=Str(a(i))    ‘④

End Sub