private void BtnLimpiar_Click(object sender, EventArgs e) { TxtBPantalla.Clear(); }
private void BtnResta_Click(object sender, EventArgs e) { operador = "-"; primero = double.Parse(TxtBPantalla.Text); TxtBPantalla.Clear(); }
private void BtnMultiplicacion_Click(object sender, EventArgs e) { operador = "*"; primero = double.Parse(TxtBPantalla.Text); TxtBPantalla.Clear(); }