C#获取串口列表

//1通过注册表 

using Microsoft.Win32;

        public void GetComList()
        {
            RegistryKey keyCom = Registry.LocalMachine.OpenSubK("Hardware\DeviceMap\SerialComm");
            if (keyCom != null)
            {
                string[] sSubKeys = keyCom.GetValueNames();
                this.cmbComPort.Items.Clear();
                foreach (string sName in sSubKeys)
                {
                    string sValue = (string)keyCom.GetValue(sName);
                    this.cmbComPort.Items.Add(sValue);
                }
            }

        }

//2系统函数

using System.IO.Ports;

foreach (string vPortName in SerialPort.GetPortNames())

{

    this.textBox2.Text = this.textBox2.Text + vPortName + "/r/n";

}