c# Internet时间服务器同步

需要用到的名空间

using System.Net;
using System.Net.Sockets;
using System.Runtime.InteropServices; 

 

建立一个结构

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 wMilliseconds;

            /// <summary>
            /// 从System.DateTime转换。
            /// </summary>
            /// <param name="time">System.DateTime类型的时间。</param>
            public void FromDateTime(DateTime time)
            {
                wYear = (ushort)time.Year;
                wMonth = (ushort)time.Month;
                wDayOfWeek = (ushort)time.DayOfWeek;
                wDay = (ushort)time.Day;
                wHour = (ushort)time.Hour;