C# 自动关机代码为什么不能正常关机
先引用空间using   System.Runtime.InteropServices   ;
再申明
[   DllImport( "user32 ")   ]
public   static   extern   long   ExitWindowsEx(long   uFlags,   long   dwReserved   )   ;

定义常量
long   dwReserved   ;
const   int   SHUTDOWN   =   1   ;
const   int   REBOOT   =   2   ;
long   sh   ;

关机时调用sh=ExitWindowsEx(SHUTDOWN,   dwReserved)可怎么也关不了机..根本没有反应..谁帮我一下是什么原因??应该没有错了...


------解决方案--------------------
using System;
using System.Runtime.InteropServices;

class shoutdown{
[StructLayout(LayoutKind.Sequential, Pack=1)]
internal struct TokPriv1Luid
{
public int Count;
public long Luid;
public int Attr;
}

[DllImport( "kernel32.dll ", ExactSpelling=true) ]
internal static extern IntPtr GetCurrentProcess();

[DllImport( "advapi32.dll ", ExactSpelling=true, SetLastError=true) ]
internal static extern bool OpenProcessToken( IntPtr h, int acc, ref IntPtr phtok );

[DllImport( "advapi32.dll ", SetLastError=true) ]
internal static extern bool LookupPrivilegeValue( string host, string name, ref long pluid );

[DllImport( "advapi32.dll ", ExactSpelling=true, SetLastError=true) ]
internal static extern bool AdjustTokenPrivileges( IntPtr htok, bool disall,
ref TokPriv1Luid newst, int len, IntPtr prev, IntPtr relen );

[DllImport( "user32.dll ", ExactSpelling=true, SetLastError=true) ]
internal static extern bool ExitWindowsEx( int flg, int rea );

internal const int SE_PRIVILEGE_ENABLED = 0x00000002;
internal const int TOKEN_QUERY = 0x00000008;
internal const int TOKEN_ADJUST_PRIVILEGES = 0x00000020;
internal const string SE_SHUTDOWN_NAME = "SeShutdownPrivilege ";
internal const int EWX_LOGOFF = 0x00000000;
internal const int EWX_SHUTDOWN = 0x00000001;
internal const int EWX_REBOOT = 0x00000002;
internal const int EWX_FORCE = 0x00000004;
internal const int EWX_POWEROFF = 0x00000008;
internal const int EWX_FORCEIFHUNG = 0x00000010;

private static void DoExitWin(int flg)
{
bool ok;
TokPriv1Luid tp;
IntPtr hproc = GetCurrentProcess();
IntPtr htok = IntPtr.Zero;
ok = OpenProcessToken( hproc, TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, ref htok );
tp.Count = 1;
tp.Luid = 0;
tp.Attr = SE_PRIVILEGE_ENABLED;
ok = LookupPrivilegeValue( null, SE_SHUTDOWN_NAME, ref tp.Luid );
ok = AdjustTokenPrivileges( htok, false, ref tp, 0, IntPtr.Zero, IntPtr.Zero );
ok = ExitWindowsEx( flg, 0 );
}

public static void Main()
{
Console.WriteLine( "正在关机…… ");
// 修改 EWX_SHUTDOWN 或者 EWX_LOGOFF, EWX_REBOOT等实现不同得功能。
// 在XP下可以看到帮助信息，以得到不同得参数
// SHUTDOWN /?
DoExitWin(EWX_SHUTDOWN);
}
}

直接用吧
果真女子的话,加我MSN慢慢聊哈哈
------解决方案--------------------
用法: shutdown [-i | -l | -s | -r | -a] [-f] [-m \\computername] [-t xx] [-c "co
mment "] [-d up:xx:yy]

没有参数 显示此消息(与 ? 相同)
-i 显示 GUI 界面，必须是第一个选项
-l 注销(不能与选项 -m 一起使用)
-s 关闭此计算机
-r 关闭并重启动此计算机
-a 放弃系统关机
-m \\computername 远程计算机关机/重启动/放弃
-t xx 设置关闭的超时为 xx 秒
-c "comment " 关闭注释(最大 127 个字符)
-f 强制运行的应用程序关闭而没有警告