/// 
        /// 创建文件夹        /// 
        ///         ///         protected void Button1_Click(object sender, EventArgs e)        {            if (!Directory.Exists(path))            {                Directory.CreateDirectory(path);            }        }        /// 
        /// 删除文件夹        /// 
        ///         ///         protected void Button2_Click(object sender, EventArgs e)        {            if (Directory.Exists(path))            {                Directory.Delete(path);            }        }        /// 
        /// 移动文件夹        /// 
        ///         ///         protected void Button3_Click(object sender, EventArgs e)        {            Directory.Move(path, newpath);        }        /// 
        /// 创建文件        /// 
        ///         ///         protected void Button4_Click(object sender, EventArgs e)        {            if (!File.Exists(newpath + @"\myfile.txt"))            {                File.CreateText(newpath + @"\myfile.txt");            }            Response.Write(String.Format("The number of files in {0} is {1}", newpath, Directory.GetFiles(newpath).Length));        }        /// 
        /// 删除文件        /// 
        ///         ///         protected void Button5_Click(object sender, EventArgs e)        {            if (File.Exists(newpath + @"\myfile.txt"))            {                File.Delete(newpath + @"\myfile.txt");            }        }        /// 
        /// 移动文件        /// 
        ///         ///         protected void Button6_Click(object sender, EventArgs e)        {            File.Move(newpath + @"\myfile.txt", path + @"\file.txt");        }