断点继传

using System;
using System.IO;
using System.Net;
using System.Text;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create("http://www.qlcoder.com/download/hugefile");
            request.AddRange(12345678901, 12345678999);
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            using (Stream stream = response.GetResponseStream())
            {
                byte[] buffer = new byte[98];
                int size = stream.Read(buffer, 0, buffer.Length);
                string myStr = Encoding.UTF8.GetString(buffer);
                Console.WriteLine(myStr);
            }
            Console.Read();
        }
    }
}