标题:帮我讲解下,谢谢
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jinlby
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注 册:2008-1-2
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帮我讲解下,谢谢
Dim a As Integer
        Dim b As String = "12345"
        Dim c As String = ""
        For a = 1 To 5
            c = c & b.Substring(0, a) & vbCrLf
        Next
        textbox1.Text = c
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2008-01-08 13:33



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