C# 获取本机的COM串口

                        //获取本地配置文件(注册表文件)                        Microsoft.Win32.RegistryKey hklm = Microsoft.Win32.Registry.LocalMachine;                //读取HARDWARE节点的键值                Microsoft.Win32.RegistryKey software11 = hklm.OpenSubKey("HARDWARE");                //打开"HARDWARE"子键                Microsoft.Win32.RegistryKey software = software11.OpenSubKey("DEVICEMAP");                Microsoft.Win32.RegistryKey sitekey = software.OpenSubKey("SERIALCOMM");                //获取当前子键                string[] Str2 = sitekey.GetValueNames();                //获得当前子键存在的键值                int i;                for (i = 0; i < Str2.Count(); i++)                {                    cmbCOMPort.Items.Add(sitekey.GetValue(Str2[i]));                }