ManagementClass mc = new ManagementClass("Win32_PhysicalMedia");//Win32_DiskDrive不包含SerialNumber屬性。ManagementObjectCollection moc = mc.GetInstances();string strID = null ; foreach( ManagementObject mo in moc ) { 　　strID = mo.Properties["SerialNumber"].Value.ToString();　　break; }textBox1.Text += "硬盤 ID:" + strID;