WhyCan Forum(哇酷开发者社区)

        private void button6_Click(object sender, EventArgs e)
        {
            serialPort1.DtrEnable = true;
        }

        private void button7_Click(object sender, EventArgs e)
        {
            serialPort1.RtsEnable = true;
        }

        private void button4_Click(object sender, EventArgs e)
        {
            serialPort1.DtrEnable = false;
        }

        private void button5_Click(object sender, EventArgs e)
        {
            serialPort1.RtsEnable = false;
        }