/// <summary>
        /// 压缩文件
        /// </summary>
        /// <param name="DFilePath">需要压缩的文件夹或者单个文件</param>
        /// <param name="DRARName">生成压缩文件的文件名</param>
        /// <param name="DRARPath">生成压缩文件保存路径</param>
        /// <returns></returns>
        protected bool RAR(string DFilePath, string DRARName, string DRARPath)
        {
            String the_rar;
            RegistryKey the_Reg;
            Object the_Obj;
            String the_Info;
            ProcessStartInfo the_StartInfo;
            Process the_Process;
            try
            {
                the_Reg = Registry.ClassesRoot.OpenSubKey(@"Applications\WinRAR.exe\Shell\Open\Command");
                the_Obj = the_Reg.GetValue("");
                the_rar = the_Obj.ToString();
                the_Reg.Close();
                the_rar = the_rar.Substring(1, the_rar.Length - 7);
                the_Info = " a    " + " " + DRARName + "  " + DFilePath; //命令 + 压缩后文件名 + 被压缩的文件或者路径
                the_StartInfo = new ProcessStartInfo();
                the_StartInfo.FileName = the_rar;
                the_StartInfo.Arguments = the_Info;
                the_StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
                the_StartInfo.WorkingDirectory = DRARPath; //RaR文件的存放目录。
                the_Process = new Process();
                the_Process.StartInfo = the_StartInfo;
                the_Process.Start();
                return true;
            }
            catch (Exception ex)
            {
                Response.Write(ex.Message);
                return false;
            }
        }

        /// <summary>
        /// 解压缩到指定文件夹
        /// </summary>
        /// <param name="RARFilePath">压缩文件存在的目录 </param>
        /// <param name="RARFileName">压缩文件名称 </param>
        /// <param name="UnRARFilePath">解压到文件夹</param>
        /// <returns></returns>
        protected bool UnRAR(string RARFilePath, string RARFileName, string UnRARFilePath)
        {
            //解压缩
            String the_rar;
            RegistryKey the_Reg;
            Object the_Obj;
            String the_Info;
            ProcessStartInfo the_StartInfo;
            Process the_Process;
            try
            {
                the_Reg = Registry.ClassesRoot.OpenSubKey(@"Applications\WinRar.exe\Shell\Open\Command");
                the_Obj = the_Reg.GetValue("");
                the_rar = the_Obj.ToString();
                the_Reg.Close();
                the_rar = the_rar.Substring(1, the_rar.Length - 7);
                the_Info = @" X " + " " + RARFilePath + RARFileName + " " + UnRARFilePath;
                the_StartInfo = new ProcessStartInfo();
                the_StartInfo.FileName = the_rar;
                the_StartInfo.Arguments = the_Info;
                the_StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
                the_Process = new Process();
                the_Process.StartInfo = the_StartInfo;
                the_Process.Start();
                return true;
            }
            catch (Exception ex)
            {
                Response.Write(ex.Message);
                return false;
            }
        }