复制文件夹及文件

   /// <summary>
        /// 复制文件夹及文件
        /// </summary>
        /// <param name="sourceFolder">源文件夹路径</param>
        /// <param name="destFolder">目标文件夹路径</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);

                string Basedestfolderdir = destfolderdir; 

                DirectoryInfo TheFolder = new DirectoryInfo(destfolderdir); 
                foreach (string file in filenames)// 遍历所有的文件和目录
                {
                    string srcfileName = System.IO.Path.Combine(destfolderdir, System.IO.Path.GetFileName(file));

 
                    //判断如果不是文件则进入复制文件夹，如果是文件则进行复制 
                    //     true if path refers to an existing directory; false if the directory does
                    //     not exist or an error occurs when trying to determine if the specified file
                    //     exists.
                    if (!Directory.Exists(file))
                    {
 
                        if (!System.IO.Directory.Exists(destfolderdir))
                        {
                            System.IO.Directory.CreateDirectory(destfolderdir);

                        }
                        log.ErrorFormat("目标文件路径确认无误：{0}", destfolderdir);


                        //判断文件是否已经存在
                        //如果不存在，则复制文件到目标路径
                        //如果调用者具有所需的权限，且路径包含名称，则为true
                        if (!File.Exists(srcfileName))
                        {

                            System.IO.File.Copy(file, srcfileName);
                        } 
                    }
                    else
                    {
                        //判断是文件夹，进入继续遍历
                        CopyFolder2(file, Basedestfolderdir);
                    }
                  
                   

                }
                return 1;
            }
            catch (Exception ex)
            {

                log.ErrorFormat("复制文件夹失败：{0}", ex);
                return 0;
            }

        }