asp.net实现数据流文件下载

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Net;
using System.IO;
public partial class FilUpload : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        Page.Response.Clear();
        bool success = ResponseFile("零点过半.rar", @"C:\download.rar", 1024000);
        if (!success)
        {
            Response.Write("下载文件出错！");
        }
        Page.Response.End();
    }
    bool ResponseFile(string fileName, string fullPath, long speed)      // 输入参数 fileName: 下载文件名， fullPath: 带文件名下载路径， speed 每秒允许下载的字节数
    {
        try
        {
            FileStream myFile = new FileStream(fullPath, FileMode.Open, FileAccess.Read, FileShare.Read);     //以只读多进程共享形式打开硬盘文件
            BinaryReader br = new BinaryReader(myFile);            //以二进制数据流形式读取文件
            try
            {
                Page.Response.AddHeader("Accept-Ranges", "bytes");
                Page.Response.Buffer = false;
                long fileLength = myFile.Length;
                long startBytes = 0;

                int pack = 10240; //10K bytes
                //int sleep = 200;   //每秒5次   即5*10K bytes每秒
                int sleep = (int)Math.Floor((double)(1000 * pack / speed)) + 1;
                if (Page.Request.Headers["Range"] != null)
                {
                    Page.Response.StatusCode = 206;
                    string[] range = Page.Request.Headers["Range"].Split(new char[] { '=', '-' });
                    startBytes = Convert.ToInt64(range[1]);
                }
                Page.Response.AddHeader("Content-Length", (fileLength - startBytes).ToString());
                if (startBytes != 0)
                {
                    Page.Response.AddHeader("Content-Range", string.Format(" bytes {0}-{1}/{2}", startBytes, fileLength - 1, fileLength));
                }
                Page.Response.AddHeader("Connection", "Keep-Alive");
                Page.Response.ContentType = "application/octet-stream";
                Page.Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode(fileName, System.Text.Encoding.UTF8));    //使用中文文件名必须使用UTF8编码

                br.BaseStream.Seek(startBytes, SeekOrigin.Begin);
                int maxCount = (int)Math.Floor((double)((fileLength - startBytes) /pack)) + 1;

                for (int i = 0; i < maxCount; i++)
                {
                    if (Page.Response.IsClientConnected)
                    {
                        Page.Response.BinaryWrite(br.ReadBytes(pack));
                        System.Threading.Thread.Sleep(sleep);
                    }
                    else
                    {
                        i = maxCount;
                    }
                }
            }
            catch
            {
                return false;
            }
            finally
            {
                br.Close();

                myFile.Close();
            }
        }
        catch
        {
            return false;
        }
        return true;
    }

}
在IE上成功，但是在360浏览器上运行不显示下载的界面