/// <summary>
/// Gets the cpu 编号.
///需引用　using System.Management;
/// </summary>
/// <returns></returns>
public string GetCpuId()
{
   string cpuInfo = \"\";
   ManagementClass cimobject = new ManagementClass(\"Win32_Processor\");
   ManagementObjectCollection moc = cimobject.GetInstances();
   foreach (ManagementObject mo in moc)
   {
     cpuInfo = mo.Properties[\"ProcessorId\"].Value.ToString();
   }
   return cpuInfo;
}