//定义内存的信息结构        [StructLayout(LayoutKind.Sequential)]        public struct MEMORY_INFO        {            public uint dwLength;            public uint dwMemoryLoad;            public uint dwTotalPhys;            public uint dwAvailPhys;            public uint dwTotalPageFile;            public uint dwAvailPageFile;            public uint dwTotalVirtual;            public uint dwAvailVirtual;        }        [DllImport("kernel32")]        private static extern void GlobalMemoryStatus(ref MEMORY_INFO meminfo);

　　此方法在C#中调用时，调用之前声明的变量会被释放掉，放在其他变量使用后调用，具体原因空了找

private static void Timer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)        {            timer.Stop();            i++;            MEMORY_INFO MemInfo = new MEMORY_INFO();            GlobalMemoryStatus(ref MemInfo);            List
     
       hardDrivers = new List
      
       ();            DriveInfo[] drives = DriveInfo.GetDrives().Where(a => a.DriveType == DriveType.Fixed).ToArray();            foreach (var item in drives)            {                hardDrivers.Add(new HardDriver()                {                    name = item.Name,                    cap_all = (1.0 * item.TotalSize / 1024.0 / 1024.0 / 1024.0).ToString() + "GB",                    cap_avi = (1.0 * item.AvailableFreeSpace / 1024.0 / 1024.0 / 1024.0).ToString() + "GB",                });            }            var cpt = new ComputerLog()            {                server_name = server_name,            };            cpt.cpu = 0;            cpt.net_in = "";            cpt.net_out = "";            cpt.drives = hardDrivers.ToArray();            cpt.mem = MemInfo.dwMemoryLoad.ToString() + "%";            cpt.mem_avi = ConvertBytes(MemInfo.dwTotalPageFile.ToString(), 3).ToString() + "GB";            Console.Clear();            //Console.WriteLine($"{i.ToString()} cpt.mem:{cpt.mem} cpt.mem_avi:{cpt.mem_avi}");            Console.WriteLine(i.ToString() + "/r/n" + JsonConvert.SerializeObject(cpt));            //Monitor.logComputer(cpt);            timer.Start();        }