当主持人点击按钮“生成抽号”后，下方的标签会显示可抽取的学号姓名，一定时间后显示被抽取作为监票人的学号姓名。

'xxxss:学校学生数，kcq:可抽取

'xhxm:学号姓名，kcq:可抽取

Dim xxxss As Integer

Dim xhxm(3000) As String

Dim kcq(3000) As Boolean

'cq_Click:启用两个定时器

Private Sub cq_Click()

    cqxhxm.Enabled = True

    xskcqxhxm.Enabled = True

End Sub

Private Sub cz_Click()    '初始化数组kcq，使每个元素数据都处于可显示状态

  For i = 0 To xxxss - 1

    kcq(i) = True           '①

  Next i

End Sub

Private Sub xskcqxhxm_Timer()  '若数组kcq第x个元素处于可抽取状态，则显示数组xhxm第x个元素

    x = Int(Rnd * xxxss)

    If kcq(x) Then xhxmbq.text = kcq(x)     '②

End Sub

Private Sub Form_Load()  '从数据库中提取需要的学号姓名相关数据并初始化数组kcq

    Randomize

    xxxss = 0

    Dim conn As New ADODB.Connection,rs As New ADODB.Recordset

    Dim str_conn as String,str_sql As String

    str_conn = "driver=Microsoft access driver(*.mdb);DBQ="&app.path&"\school.mdb";

    conn.open str_conn

    str_sql = "select * from students"

    rs.open str_sql

    Do While Not rs.eof

      xxxss = xxxss + 1

      xhxm(xxxss) = rs.fields("xuehao")&rs.fields("xingming")

      rs.movenext

    Loop

    For i = 0 To xxxss - 1

      kcq(i) = True

    Next i

End Sub

Private Sub cqxhxm_Timer()    '决定抽取的学号姓名作为监票人

    xskcqxhxm.Enabled = False

    For i = 0 To xxxss - 1

        If xhxmbq.Caption = xhxm(i) Then kcq(i) = False

    Next i

    cqxhxm.Enabled = False

End Sub

①{#blank#}1{#/blank#} 

②{#blank#}2{#/blank#} 

参赛班级用数字1，2，3，4……number表示，依次存入数组a(1)～a(number)，若1号班级的编号为5，则a(1)=5。

Dim a(1 To 15) As Integer

Private Sub Form_Load()

  Dim i As Integer, t As Integer

  Dim s1 As String, s2 As String

  Randomize

  s1 = ""

  For i = 1 To 15

    a(i) =  ①    

    s1 = s1 + Str(a(i))

  Next i

  Text1.Text = s1

End Sub

Private Sub Com1_Click()

  s2 = ""

  For i = 1 To 15

    s2 =  ②    

  Next i

  Text2.Text = s2

End Sub

s="13Ka5iSh79"

s1=""

for i in s:

    if "0" <= i <= "9":

        s1=i+s1

    else:

        s1+=i

print(s1)

执行该程序段后，输出的结果是（   ）