string html;            HttpWebRequest request = HttpWebRequest.Create(url) as HttpWebRequest;            request.UserAgent = Comm.GetRandomUserAgent();            var response = request.GetResponse();            Stream stream = response.GetResponseStream();            byte[] data = new byte[1024];            int count = 1024;            StringBuilder sb = new StringBuilder();            MemoryStream ms = new MemoryStream();            do            {                count = stream.Read(data, 0, 1024);                sb.Append(Encoding.UTF8.GetString(data, 0, count));            } while (count >0);            stream.Close();            response.Close();            html = sb.ToString(); 問題是如果一個漢字正好在1024的邊界上跨兩個循環的話這個漢字會成為亂碼。大家有什么好的辦法可以解決？