c#修改本機時間，獲取硬盤序列號

using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;

namespace Fengyun
{
    public class Win32
    {
        #region 修改本地系統時間
        [DllImport("Kernel32.dll")]
        private extern static void GetSystemTime(ref SYSTEMTIME lpSystemTime);

        [DllImport("Kernel32.dll")]
        private extern static uint SetLocalTime(ref SYSTEMTIME lpSystemTime);

        [StructLayout(LayoutKind.Sequential)]
        private 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>
        /// 將本地時間與sqlserver服務器時間同步
        /// </summary>
        /// <param name="SqlServerTime">時間</param>
        public static void SetTime(DateTime SqlServerTime)
        {
            SYSTEMTIME st = new SYSTEMTIME();
            st.wYear = Convert.ToUInt16(SqlServerTime.Year);
            st.wMonth = Convert.ToUInt16(SqlServerTime.Month);
            st.wDay = Convert.ToUInt16(SqlServerTime.Day);
            st.wHour = Convert.ToUInt16(SqlServerTime.Hour);
            st.wMilliseconds = Convert.ToUInt16(SqlServerTime.Millisecond);
            st.wMinute = Convert.ToUInt16(SqlServerTime.Minute);