【加试题】小李基于冒泡排序算法编写了一个VB程序,功能如下:在文本框Text1中显示排序前的数据,单击“排序”按钮Command1,在文本框Text2中显示剔除重复数据后的升序排序结果。程序运行界面如下图所示。实现上述功能的VB程序如下,但加框处代码有错,请改正。
Const n = 10
Dim a(1 To n) As Integer
Private Sub Command1_Click()
Dim i As Integer, j As Integer, t As Integer
Dim bottom As Integer
'获取排序前数据依次存储在数组a中,并在文本框Text1中显示。代码略
bottom = n
i = 1
Do While i <= bottom - 1
For j = bottom To i + 1 Step -1
If Then {#blank#}1{#/blank#}
t = a(j): a(j) = a(j - 1): a(j - 1) = t
ElseIf a(j) = a(j - 1) Then '相邻两个数据相等,进行剔除处理
{#blank#}2{#/blank#}
bottom = bottom - 1
End If
Next j
i = i + 1
Loop
Text2.Text = " "
For i = 1 To bottom
Text2.Text = Text2.Text + Str(a(i))
Next i
End Sub