我通过调用Marshal.PtrToStructure(intPtr,typeof(Servent))得到一个AccessViolationExcpetion。任何想法我做错了什么？我在x64上试过这个。IntPtrintPtr=NativeMethods.GetServByName(name,"tcp");if(intPtr!=IntPtr.Zero){Serventservent=(Servent)Marshal.PtrToStructure(intPtr,typeof(Servent));result=System.Convert.ToInt32(IPAddress.Networ