private void btn_c_Click(object sender, EventArgs e)
{
Exibir.Clear();
ban_num = true;
ban_ope = true;
ban_btn = true;
}
private void btn_adicao_Click(object sender, EventArgs e)
{
operador = "+";
ban_num = true;
if (ban_btn == false)
{
num1 = double.Parse(Exibir.Text);
Exibir.Clear();
}
}
private void btn5_Click(object sender, EventArgs e)
{
if (ban_num == true)
{
Exibir.Clear();
Exibir.Text = "5";
ban_num = false;
}
else
{
Exibir.Text = Exibir.Text + "5";
}
ban_btn = false;
}
