C#获取U盘的盘符及序列号

//需要添加并引用命名空间
System.Management;
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        /// <summary>
        /// 获取U盘的盘符及序列号
        /// </summary>
        /// <returns>以交错数组string[][]的方式返回U盘的盘符及序列号！</returns>
        public static string[][] GetUSBInfo()
        {
            List<string> usbLoglst = new List<string>();
            List<string[]> usbdsklst = new List<string[]>();
            List<string[]> usblst = new List<string[]>();
            ManagementObjectSearcher usbLog = new ManagementObjectSearcher("SELECT * FROM Win32_LogicalDisk where drivetype=2 and Size>943718400");
            ManagementObjectSearcher usbdsk = new ManagementObjectSearcher("Select * from Win32_DiskDrive Where InterfaceType = 'USB'");
            if (usbLog.Get().Count >= 1 && usbdsk.Get().Count >= 1)
            {
                foreach (ManagementObject usbLogitem in usbLog.Get())
                {
                    usbLoglst.Add(usbLogitem["DeviceID"].ToString().Trim(':'));
                }
                foreach (ManagementObject usbdskitem in usbdsk.Get())
                {
                    string[] lst1;
                    string usbId = usbdskitem["PNPDeviceID"].ToString();
                    lst1 = usbId.Substring(usbId.LastIndexOf("\\") + 1).Split('&');
                    Array.Reverse(lst1);
                    usbdsklst.Add(new string[] { usbdskitem["Index"].ToString(), lst1[1] });
                    //usbdsklst.Add(new string[] { usbdskitem["DeviceID"].ToString(), DId.Substring(DId.LastIndexOf("\\") + 1) });
                    usbdsklst.Sort((x, y) => x[0].CompareTo(y[0]));//升序
                }
                for (int i = 0; i < usbLoglst.Count; i++)
                {
                    usblst.Add(new string[] { usbLoglst[i], usbdsklst[i][1] });
                }
            }
            string[][] USBID = usblst.ToArray();
            return USBID;
        }
        //=========================================================================================