C#更改操作系统时间

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using System; using System.Collections.Generic; using System.Linq; using System.Runtime.InteropServices; using System.Text;   namespace ConsoleApplication1 {     class Program     {         static void Main(string[] args)         {             SystemTime MySystemTime = new SystemTime();             SetSystemDateTime.GetLocalTime(MySystemTime);             MySystemTime.wYear = 2017;             MySystemTime.wMonth = 2;             MySystemTime.wDay = 3;             MySystemTime.wHour = 12;             MySystemTime.wMinute = 45;             MySystemTime.wSecond = 31;             MySystemTime.wMiliseconds = 678;             SetSystemDateTime.SetLocalTime(MySystemTime);         }     }       [StructLayout(LayoutKind.Sequential)]     public struct SystemTime     {         public ushort wYear;         public ushort wMonth;         public ushort wDayOfWeek;         public ushort wDay;         public ushort wHour;         public ushort wMinute;         public ushort wSecond;         public ushort wMiliseconds;     }     public class SetSystemDateTime     {         [DllImportAttribute("Kernel32.dll")]           public static extern void GetLocalTime(SystemTime st);           [DllImportAttribute("Kernel32.dll")]           public static extern void SetLocalTime(SystemTime st);     } }