获取CPU序列号方法

        using System.Management;


        private static string GetInfo()
        {
            string cpuInfo = "";//cpu序列号
            ManagementClass cimobject = new ManagementClass("Win32_Processor");
            ManagementObjectCollection moc = cimobject.GetInstances();
            foreach (ManagementObject mo in moc)
            {
                cpuInfo = mo.Properties["ProcessorId"].Value.ToString();
                return cpuInfo.ToString();
            }
            return cpuInfo.ToString();    
        }