C# 异步读文件

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C# 异步读文件
class AsynchIOTester    {        static void Main(string[] args)        {            AsynchIOTester test = new AsynchIOTester();            test.Run();            Console.ReadKey();        }        private Stream inputStream;        private AsyncCallback myCallback;        private byte[] buffer;        const int BufferSize = 256;        public AsynchIOTester()        {            inputStream = File.OpenRead(@"C:\Users\User\Desktop\Noname1.html");            myCallback = new AsyncCallback(this.OnConpleteRead);            buffer = new byte[BufferSize];        }        void OnConpleteRead(IAsyncResult asyncResult)        {            int bytesRead = inputStream.EndRead(asyncResult);            if (bytesRead > 0)            {                string s = Encoding.ASCII.GetString(buffer, 0, bytesRead);                Console.WriteLine(s);                inputStream.BeginRead(buffer, 0, buffer.Length, myCallback, null);            }        }        void Run()        {            inputStream.BeginRead(buffer, 0, buffer.Length, myCallback, null);            for (long i = 0; i < 1000000; i++)            {                if (i % 1000 == 0)                {                    Console.Write("i=" + i);                }            }        }    }