VB的菜鸟问题

Private Sub Command1_Click()
<br>Text1.FontSize = 20
<br>Text1.Text = "欢迎进入Visual Basic世界"
<br>End Sub
<br>
<br>rivate Sub Command2_Click()
<br>Text1.ForeColor = RGB(Rnd * 255, Rnd * 255, Rnd * 255)
<br>End Sub
<br>
<br>rivate Sub Command3_Click()
<br>Text1.Text = ""
<br>End Sub
<br>
<br>rivate Sub Command4_Click()
<br>End
<br>
<br>End Sub
<br>
<br>Private Sub Text1_Change()
<br>Text1.Text = "欢迎进入Visual Basic世界"
<br>End Sub
<br>
<br>
<br>这是我们的VB作业，最后的清屏步骤出问题了，多了
<br>Private Sub Text1_Change()
<br>Text1.Text = "欢迎进入Visual Basic世界"
<br>End Sub
<br>
<br>问下，Private Sub Text1_Change()是什么意思？

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