C# 读取计算机CPU,HDD信息

        public string getCpuInfo()	//读取CPU信息
        {
            ManagementClass mobj = new ManagementClass("Win32_Processor");
            ManagementObjectCollection moc = mobj.GetInstances();
            foreach (ManagementObject mo in moc)
            {
                return mo.Properties["ProcessorId"].Value.ToString();
            }
            return "";
        }
        public string getHddInfo()	//读取硬盘信息
        {
            ManagementClass mobj = new ManagementClass("Win32_PhysicalMedia");
            ManagementObjectCollection moc = mobj.GetInstances();
            foreach (ManagementObject mo in moc)
            {
                return mo.Properties["SerialNumber"].Value.ToString();
            }
            return "";
        }
　　　　 //取得设备硬盘的卷标号
        public string GetDiskVolumeSerialNumber()
        {
            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
            ManagementObject disk = new ManagementObject("win32_logicaldisk.deviceid="d:"");
            disk.Get();
            return disk.GetPropertyValue("VolumeSerialNumber").ToString();
        }
        //获得CPU的序列号
        public string getCpu()
        {
            string strCpu = null;
            ManagementClass myCpu = new ManagementClass("win32_Processor");
            ManagementObjectCollection myCpuConnection = myCpu.GetInstances();
            foreach (ManagementObject myObject in myCpuConnection)
            {
                strCpu = myObject.Properties["Processorid"].Value.ToString();
                break;
            }
            return strCpu;
        }