public void clerar()
{
old1.Clear(); old2.Clear(); old3.Clear(); old4.Clear();
New1.Clear(); New2.Clear(); New3.Clear(); New4.Clear();
Con1.Clear(); Con2.Clear(); Con3.Clear(); Con4.Clear();
button3.Hide();
}
private void Con2_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Back)
{
Con1.Clear();
Con1.Focus();
// e.Handled = true;
p = 1;
}
}
