C# 通过WMI获取操作系统名称

public static string getSystemName()
        {
            ManagementClass mc = new ManagementClass("Win32_OperatingSystem");
            ManagementObjectCollection moc = mc.GetInstances();
            String systemType = "";
            foreach (ManagementObject mo in moc)
            {
                foreach (PropertyData pd in mo.Properties)
                {
                    if (pd.Name == "Name")
                    {
                        systemType = pd.Value.ToString();
                    }
                }
            }
            
            if(string.IsNullOrEmpty(systemType))
            {
                return null;
            }

            return (systemType.Split(‘|‘)[0].ToString());
        }