1. (2020高三上·杭州期中) 有如下程序，从数据库获取成绩，单击“读取数据”按钮将n个非降序数保存在数组cj(1)～cj(n)中，并将成绩显示在列表框中。在文本框中输入成绩key，单击“查找”按钮，在标签中显示大于等于该成绩的学生人数。

1. （1） 界面中“查找”按钮的对象名为。
3. （2） 实现上述功能的 VB 程序如下，请在划线处填入合适的代码

   Dim cj(1000) As Integer, n As Integer

   Private Sub btncmd1_Click( )

   Dim i As Integer, j As Integer

   Dim k As Integer ,tmp As Integer

   For i = 2 To n

     tmp = cj(i)

     j = BinarySearch

     For k = i To j + 1 Step -1

       cj(k) = cj(k - 1)

     Next k

     cj(k) = tmp

   Next i

   For i = 1 To n

     List1.AddItem Str(cj(i))

   Next i

   End Sub

   Private Sub btncmd2_Click()

   Dim i As Integer

   i = BinarySearch(Val(Text1.Text), 1, n)

   Label2.Caption = "共有" ++ "位同学大于等于该成绩。"

   End Sub

   Function BinarySearch(key As Integer,i As Integer,j As Integer) As Integer

   Dim m As Integer

   Do While i <= j

   m = (i + j) \ 2

     If cj(m) >= key Then

       j = m - 1

     Else

       i = m + 1

     End If

   Loop

   BinarySearch =

   End Function

   Private Sub Form_Load()

   '从数据库获取n个成绩存储在 cj(1) ～cj(n)组中，代码略

   End Sub