Private Sub Button1_Click(ByVal sender As System。Object, ByVal e As System。EventArgs) Handles Button1。Click
Dim text As String
Dim text2 As String
Dim index As Integer
text = TextBox1。
Text
text2 = ""
TextBox2。Text = ""
index = text。LastIndexOf(" ")
Do While index <> -1
text2 = text。
Substring(index + 1)
text = text。Substring(0, index)
TextBox2。Text = TextBox2。Text + text2 + " "
index = text。
LastIndexOf(" ")
Loop
TextBox2。Text = TextBox2。Text + text
End Sub。
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