ManagementObjectSearcher search = new ManagementObjectSearcher("SELECT * FROM Win32_ComputerSystem");
            sysInfoListTest.Items.Clear();
            sysInfoListTest.Items.Add("Computer System Information");
            foreach(ManagementObject info in search.Get())
            {
                sysInfoListTest.Items.Add("Manufacturer: " + info["manufacturer"].ToString());
                sysInfoListTest.Items.Add("Model: " + info["model"].ToString());
                sysInfoListTest.Items.Add("System Type: " + info["systemtype"].ToString());
                sysInfoListTest.Items.Add("Total Physical Memory: " + info["totalphysicalmemory"].ToString());
            }

            foreach(ManagementObject mo in mos.Get())
            {
                DataRow dr = dt.NewRow();

                PropertyDataCollection.PropertyDataEnumerator oEnum;
                //显示系统类
                //获取属性，系统类
                oEnum = (mo.Properties.GetEnumerator() as PropertyDataCollection.PropertyDataEnumerator);
                while(oEnum.MoveNext())
                {
                    PropertyData prop = (PropertyData)oEnum.Current;
                    if(dt.Columns.IndexOf(prop.Name)==-1)
                    {
                        dt.Columns.Add(prop.Name);
                        Console.Out.WriteLine(prop.Name);
                        dt.Columns[dt.Columns.Count-1].DefaultValue = "";
                    }
                    try
                    {
                        //该类未实例化，所以需要异常结构，表示为null
                        dr[prop.Name] = mo[prop.Name].ToString();
                        Console.Out.WriteLine(prop.Name + " row");
                    }
                    catch
                    {
                        Console.Out.WriteLine(prop.Name + " row error");
                    }
                }
            }