private void checkBox2_CheckedChanged(object sender, EventArgs e) { int result; if (chkBuzzer.Checked) { lbInfo.Items.Add("YLE280_BuzzerOn()"); result = RF_YLE280U.YLE280_BuzzerOn(); } else { lbInfo.Items.Add("YLE280_BuzzerOff()"); result = RF_YLE280U.YLE280_BuzzerOff(); } lbInfo.Items.Add("返回值: " + result.ToString()); }