private void radioButton1_CheckedChanged(object sender, EventArgs e)

{

if (radioButton1.Checked == true)

{

form2._aaa = "簡單";

radioButton2.Checked = false

radioButton3.Checked = false;

}

if (radioButton2.Checked == true)

{

form2._aaa = "容易";

radioButton1.Checked = false;

radioButton3.Checked = false;

}

if (radioButton3.Checked == true)

{form2._aaa = "困難";

radioButton2.Checked = false;

radioButton1.Checked = false;

}

}

private void radioButton1_CheckedChanged(object sender, EventArgs e)

{

if (radioButton1.Checked == true)

{

form2._aaa = "簡單";

radioButton2.Checked = false

radioButton3.Checked = false;

}

if (radioButton2.Checked == true)

{

form2._aaa = "容易";

radioButton1.Checked = false;

radioButton3.Checked = false;

}

if (radioButton3.Checked == true)

{

form2._aaa = "困難";radioButton2.Checked = false;

radioButton1.Checked = false;

}

}