/// <summary>
        /// 解压缩
        /// </summary>
        /// <param name="context"></param>
        private void UnZip(HttpContext context)
        {
            string unZipDir = context.Server.MapPath(context.Request["value1"]);

            string[] zipFiles = context.Request["value2"].Split('|');
            foreach (string item in zipFiles)
            {
                ZipClass.UnZip(context.Server.MapPath(item), unZipDir, "");
            }
            context.Response.Write("OK");
        }
        /// <summary>
        /// 下载多个文件
        /// </summary>
        /// <param name="context"></param>
        private void DownLoads(HttpContext context)
        {
            string zipFile = context.Server.MapPath("#download.zip");

            string[]      fd    = context.Request["value1"].Split('|');
            List <string> files = new List <string>();
            List <string> dirs  = new List <string>();

            foreach (string item in fd)
            {
                string p = context.Server.MapPath(item);
                if (File.Exists(p))
                {
                    files.Add(p);
                }
                else if (Directory.Exists(p))
                {
                    dirs.Add(p);
                }
            }
            ZipClass.Zip(Path.GetDirectoryName(zipFile) + "\\", zipFile, "", true, files.ToArray(), dirs.ToArray());
            DownloadFile.ResponseFile(zipFile, context, true);
        }
        /// <summary>
        /// 压缩文件
        /// </summary>
        /// <param name="context"></param>
        private void Zip(HttpContext context)
        {
            string zipFile = context.Server.MapPath(context.Request["value1"]);

            string[]      fd    = context.Request["value2"].Split('|');
            List <string> files = new List <string>();
            List <string> dirs  = new List <string>();

            //将要压缩的文件或者文件夹全部存储到集合中
            foreach (string item in fd)
            {
                string p = context.Server.MapPath(item);
                if (File.Exists(p))
                {
                    files.Add(p);
                }
                else if (Directory.Exists(p))
                {
                    dirs.Add(p);
                }
            }
            ZipClass.Zip(Path.GetDirectoryName(zipFile) + "\\", zipFile, "", true, files.ToArray(), dirs.ToArray());
            context.Response.Write("OK");
        }