挂起能精确到1毫秒以下吗?

 private delegate void TimeProc(uint id, uint msg, int user, int dw1, int dw2);

        [DllImport("Winmm.dll")]

        private extern static int timeSetEvent(uint delay, uint resolution, TimeProc timeProc, int user, uint fuEvent);

public void fangfa1()

{

   //xxx.....

    timeSetEvent(1, 1,new TimeProc(fangfa2), 0, 0);

}

public void fangfa2()

{

   fangfa3();

}

public void fangfa3()

{

   //xxx.....

}

		public static void Test()

		{

			Console.WriteLine( Stopwatch.Frequency );	// 输出 CPU 频率



			Stopwatch sw = new Stopwatch( );



			sw.Start( );

			int s = 0;

			for( int i = 0; i < 60000; ++i )			// 测试 Stopwatch 精度

				s += i;

			sw.Stop( );

			Console.WriteLine( sw.ElapsedMilliseconds );

			Console.WriteLine( sw.ElapsedTicks );



			sw.Reset( );

			sw.Start( );

			Thread.Sleep( 0 );							// 看看 Sleep(0) 花了多少时间

			sw.Stop( );

			Console.WriteLine( sw.ElapsedMilliseconds );

			Console.WriteLine( sw.ElapsedTicks );



			sw.Reset( );

			sw.Start( );

			Thread.Sleep( 1 );							// 看看 Sleep(1) 花了多少时间

			sw.Stop( );

			Console.WriteLine( sw.ElapsedMilliseconds );

			Console.WriteLine( sw.ElapsedTicks );



			sw.Reset( );

			sw.Start( );

			while( true )								// 使用 Sleep(0) 进行精度控制

			{

				if( sw.ElapsedMilliseconds >= 1 )

					break;

				Thread.Sleep( 0 );

			}

			sw.Stop( );

			Console.WriteLine( sw.ElapsedMilliseconds );

			Console.WriteLine( sw.ElapsedTicks );

		}