private void button1_Click(object sender, EventArgs e)
{
double A, B, SUMA, RESTA;
A = double.Parse(textBox1.Text);
B = double.Parse(textBox2.Text);
if (radioButton1.Checked == true)
{
SUMA = A + B;
Text = SUMA.ToString();
}
else
{
if (radioButton1.Checked == true)
{
A = double.Parse(textBox1.Text);
B = double.Parse(textBox2.Text);
RESTA = A - B;
Text = RESTA.ToString();
}
}
}
