/// <summary>

         /// 获取本机的MAC地址

         /// </summary>

         /// <returns></returns>

         public static string GetMACString()

         {

             ManagementClass mAdapter = new ManagementClass("Win32_NetworkAdapterConfiguration");

             ManagementObjectCollection mo = mAdapter.GetInstances();

             foreach (ManagementBaseObject m in mo)

             {

                 if ((bool)m["IpEnabled"] == true)

                 {

                     return m["MacAddress"].ToString();

                 }

             }

             mo.Dispose();

             return null;

         }

         /// <summary>

         /// 获取CPU的个数

         /// </summary>

         /// <returns></returns>

         public static int GetCpuCount()

         {

             try

             {

                 using (ManagementClass mCpu = new ManagementClass("Win32_Processor"))

                 {

                     ManagementObjectCollection cpus = mCpu.GetInstances();

                     return cpus.Count;

                 }

             }

             catch

             {

             }

             return -;

         }

         /// <summary>

         /// 获取CPU的频率 这里之所以使用string类型的数组，主要是因为cpu的多核

         /// </summary>

         /// <returns></returns>

         public static string[] GetCpuMHZ()

         {

             ManagementClass mc = new ManagementClass("Win32_Processor");

             ManagementObjectCollection cpus = mc.GetInstances();

             string[] mHz = new string[cpus.Count];

             int c = ;

             ManagementObjectSearcher mySearch = new ManagementObjectSearcher("select * from Win32_Processor");

             foreach (ManagementObject mo in mySearch.Get())

             {

                 mHz[c] = mo.Properties["CurrentClockSpeed"].Value.ToString();

                 c++;

             }

             mc.Dispose();

             mySearch.Dispose();

             return mHz;

         }

         /// <summary>

         /// 获取硬盘的大小

         /// </summary>

         /// <returns></returns>

         public static string GetSizeOfDisk()

         {

             ManagementClass mc = new ManagementClass("Win32_DiskDrive");

             ManagementObjectCollection moj = mc.GetInstances();

             foreach (ManagementObject m in moj)

             {

                 return m.Properties["Size"].Value.ToString();

             }

             return "-1";

         }

         /// <summary>

         /// 获取内存的大小

         /// </summary>

         /// <returns></returns>

         public static string GetSizeOfMemery()

         {

             ManagementClass mc = new ManagementClass("Win32_OperatingSystem");

             ManagementObjectCollection moc = mc.GetInstances();

             double sizeAll = 0.0;

             foreach (ManagementObject m in moc)

             {

                 if (m.Properties["TotalVisibleMemorySize"].Value != null)

                 {

                     sizeAll += Convert.ToDouble(m.Properties["TotalVisibleMemorySize"].Value.ToString());

                 }

             }

             mc = null;

             moc.Dispose();

             return sizeAll.ToString();

         }

         /// <summary>

         /// 取CPU编号

         /// </summary>

         /// <returns></returns>

         public static String GetCpuID()

         {

             try

             {

                 ManagementClass mc = new ManagementClass("Win32_Processor");

                 ManagementObjectCollection moc = mc.GetInstances();

                 String strCpuID = null;

                 foreach (ManagementObject mo in moc)

                 {

                     strCpuID = mo.Properties["ProcessorId"].Value.ToString();

                     break;

                 }

                 return strCpuID;

             }

             catch

             {

                 return "";

             }

         }