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原创于 2008-07-21 10:42:06 发布 · 151 阅读

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Private   Sub   TextBox1_KeyPress(Byval sender As System.Object,   Byval e As System.Windows.Forms.KeyPressEventArgs)Handles   textBox1.KeyPress   
       If Char.IsNumber(e.KeyChar)   Or   e.KeyChar   =   Chr(Keys.Back)   Then     
                          Return   
            End   If   
            e.Handled   =   True   
  End   Sub