/// <summary>
        /// 复制文件夹及文件
      /// </summary>
        /// <param name="sourceFolder">原文件路径</param>
        /// <param name="destFolder">目标文件路径</param>
        /// <returns></returns>
        public int CopyFolder(string sourceFolder, string destFolder)
        {
            try
            {
                //如果目标路径不存在,则创建目标路径
                if (!System.IO.Directory.Exists(destFolder))
                {
                    System.IO.Directory.CreateDirectory(destFolder);
                }
                //得到原文件根目录下的所有文件
                string[] files = System.IO.Directory.GetFiles(sourceFolder);
                foreach (string file in files)
                {
                    string name = System.IO.Path.GetFileName(file);
                    string dest = System.IO.Path.Combine(destFolder, name);
                    System.IO.File.Copy(file, dest);//复制文件
                }
                //得到原文件根目录下的所有文件夹
                string[] folders = System.IO.Directory.GetDirectories(sourceFolder);
                foreach (string folder in folders)
                {
                    string name = System.IO.Path.GetFileName(folder);
                    string dest = System.IO.Path.Combine(destFolder, name);
                    CopyFolder(folder, dest);//构建目标路径,递归复制文件
                }
                return 1;
            }
            catch (Exception e)
            {
                MessageBox.Show(e.Message);
                return 0;
            }

        }

/// <summary>
        /// 复制文件夹及文件
      /// </summary>
        /// <param name="sourceFolder">原文件路径</param>
        /// <param name="destFolder">目标文件路径</param>
        /// <returns></returns>
        public int CopyFolder2(string sourceFolder, string destFolder)
        {
            try
            {
                string folderName = System.IO.Path.GetFileName(sourceFolder);
                string destfolderdir = System.IO.Path.Combine(destFolder,folderName);
                string[] filenames = System.IO.Directory.GetFileSystemEntries(sourceFolder);
                foreach (string file in filenames)// 遍历所有的文件和目录
                {
                    if (System.IO.Directory.Exists(file))
                    {
                        string currentdir = System.IO.Path.Combine(destfolderdir, System.IO.Path.GetFileName(file));
                        if (!System.IO.Directory.Exists(currentdir))
                        {
                            System.IO.Directory.CreateDirectory(currentdir);
                        }
                        CopyFolder2(file, destfolderdir);
                    }
                    else
                    {
                        string srcfileName =System.IO.Path.Combine(destfolderdir,System.IO.Path.GetFileName(file));
                        if (!System.IO.Directory.Exists(destfolderdir))
                        {
                            System.IO.Directory.CreateDirectory(destfolderdir);
                        }
                        System.IO.File.Copy(file, srcfileName);
                    }
                }

                return 1;
            }
            catch (Exception e)
            {

                MessageBox.Show(e.Message);
                return 0;
            }

        }