VB程序、、编写应用程序，要求在TextBox控件的文本框中输入一个英文句子后完成如下操作：

1) 分析并显示控件的值中含有几个字母“a”。
2) 若英文句子用“.”号结束，英文单词间用空格字符和逗号字符作为分隔字符，分析显示TextBox控件的Text值中含有几个英文单词。
3) 把找到的单词按从小到大的次序排序后显示到另一个TextBox控件的文本框中。

请用以下代码要求一个list1 用来排序单词 请将sorted属性设置为true 。
Private Sub Command1_Click()
Dim ano
For i = 1 To Len(Text1.Text)
If Mid(Text1.Text, i, 1) = "a" Then
ano = ano + 1
End If
Next
MsgBox ano & "个a"
End Sub

Private Sub Command2_Click()
Dim Cmdarr() As String, cno As Long, mdarr() As String
Cmdarr = Split(Text1.Text, " ")
For i = LBound(Cmdarr) To UBound(Cmdarr) '分析有几个单词

mdarr = Split(Cmdarr(i), ",")
For c = LBound(mdarr) To UBound(mdarr) ' 为单词排序到list1
List1.AddItem mdarr(c)
Next
cno = cno + UBound(mdarr)

Next


For d = 0 To List1.ListCount - 1 '将排序好的单词输出到text2
Text2.SelText = List1.List(d) & " "
Next
MsgBox cno + UBound(Cmdarr) + 1 & "个单词"
End Sub

这个不难。好好看教材例程，结合几个相关的例子。

建议画个草图 或者按步骤说明

private sub command1_click() dim a as textbox dim i as integer for i = 0 to 9 set a = form1.controls.add("vb.textbox", "text" & i) a.visible = true a.move i * 500, i * 400, 1000, 300 a.backcolor = rgb(255, 255, 255) a.text = "text" & i next lab.caption = "动态添加控件成功" end sub

Private Sub Command1_Click() '字母a的数量 Dim i As Integer, j As Integer For i = 0 To Len(Text1.Text) - 1 If Mid(Text1.Text, i + 1, 1) = "a" Then j = j + 1 End If Next i MsgBox "字母a的数量为" & j '英文单词数量 Dim y, m As Integer y = Split(Text1.Text, ".", -1, 1) m = UBound(y) MsgBox "英文单词数量为" & m + 1 '单词排序，并输入到text2中 Dim temp, r As Integer, n As Integer, z As Integer Text2.Text = "" For n = m To 1 Step -1 For z = 1 To n If Len(y(z - 1)) > Len(y(z)) Then tem = y(z) y(z) = y(z - 1) y(z - 1) = tem End If Next z Next n For r = 0 To m Text2.Text = Text2.Text + " " + y(r) Next End Sub