实现上述功能的VB程序如下：       

为此，小李编写了一个VB程序，功能如下：运行程序，窗体加载时随机产生6个[0,9]的随机整数，并在列表框List1中依次显示排序前数据，单击“排序”按钮Command1，在列表框List2 中显示经过上述排序算法后的数据。运行结果如图所示。

实现上述功能的VB代码如下，但横线处代码有错，请改正。

Dim a(10) As Integer'数组a表示桶的编号，如a(0)表示第0号桶

Private Sub Command1_Click()

Dim i As Integer, j As Integer

For i = 0 To 10

For j = 1 To     i      错①处

List2.AddItem CStr(i)

Next j

Next i

End Sub

Private Sub Form_Load()

Dim i As Integer

Randomize

For i = 0 To 10'将数组初始化为0

a(i) = 0

Next i

For i = 1 To 6'产生6个[0,9]的随机数

t = Int(Rnd * 10)

a(t) =  t + 1  '第t桶中小旗子数量加1  错②处

List1.AddItem CStr(t)

Next i

End Sub

①{#blank#}1{#/blank#} ②{#blank#}2{#/blank#} 

  For i=1 To 3

    For j=5 To i Step-1

       If a(j)<a(j+1)Then

           k=a(j)：a(j)=a(j+1)：a(j+1)=k

       EndIf

    Next j

    Listl．AddItem Str(a(i))

  Next i

  数组元素a（1）到a（6）的数据依次为“1，5，7，6，9，3”，经过该程序段加工后，列表框List1中显示的内容是（  ）

Dim a(1 To 100) As Integer, n As Integer

Function moving( start As Integer, finish As Integer, st As Integer)

'将元素 a(finish)插入到元素 a(start)和元素 a(start+st)之间

Dim i As Integer, k As Integer k = a(finish)

For i = finish - st To start Step -st a(i + st) = a(i)

Next i a(start) = k

End Function

Private Sub Command1_Click()

Dim head As Integer, end1 As Integer, i As Integer, ans As String

' 将待排序的数存储在数组 a 的 a(1)至 a(n)中，并输入元素个数 n，代码略

head = 1: end1 = n + 1

Do While head < end1

If    ①    Then

For i = 1 To head - 1

If a(i) > a(head) Then Exit For

Next i

Call moving(i, head, 1)

head =     ②    

Else

For i = end1 To n

If a(i) < a(head) Then Exit For

Next i

Call moving(    ③    )

End1 = end1 - 1

End If

Loop

For i = 1 To n

ans = ans + Str(a(i))

Next i

Text2.Text = ans End Sub 请回答下列问题：