static void Main(string[] args)
        {
            string    str;
            CLIHelper helper = new CLIHelper();

            helper.ExecuteCommand("cmd", "/c dir", out str);
            Console.WriteLine(str);
            Console.ReadLine();
        }
        public void Test1()
        {
            CLIHelper helper = new CLIHelper();

            helper.ExecuteCommand("", "", "dir", false);
        }