C#读取计算机CPU及HDD信息的方法

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 "";}