/// <summary>
        /// 获取当前目录的文件和一级子目录信息
        /// </summary>
        /// <returns></returns>
        public List <FileStruct> ListFilesAndDirectories()
        {
            var fileList = new List <FileStruct>();

            response = PrivateAction.Open(this.ftpUserID, this.ftpPassword, this.request, new Uri(ftpURI), WebRequestMethods.Ftp.ListDirectoryDetails);
            using (var stream = response.GetResponseStream())
            {
                using (var sr = new StreamReader(stream))
                {
                    string line = null;
                    while ((line = sr.ReadLine()) != null)
                    {
                        //line的格式如下:
                        //08-18-13  11:05PM       <DIR>          aspnet_client
                        //09-22-13  11:39PM                 2946 Default.aspx
                        DateTime dtDate     = DateTime.ParseExact(line.Substring(0, 8), "MM-dd-yy", null);
                        DateTime dtDateTime = DateTime.Parse(dtDate.ToString("yyyy-MM-dd") + line.Substring(8, 9));
                        string[] arrs       = line.Split(' ');
                        var      model      = new FileStruct()
                        {
                            IsDirectory = line.IndexOf("<DIR>") > 0 ? true : false,
                            CreateTime  = dtDateTime,
                            Name        = arrs[arrs.Length - 1],
                            Path        = ftpRemotePath + "/" + arrs[arrs.Length - 1]
                        };
                        fileList.Add(model);
                    }
                }
            }
            return(fileList);
        }
        /*
         * 例:删除test目录
         *   FTPHelper helper = new FTPHelper("x.x.x.x", "web", "user", "password");
         *   helper.RemoveD        /// <summary>
         * /// 删除目录(包括下面所有子目录和子文件)
         * /// </summary>
         * /// <param name="remoteDirectoryName">要删除的带路径目录名:如web/test</param>irectory("web/test");
         */
        public void RemoveDirectory(string remoteDirectoryName)
        {
            GotoDirectory(remoteDirectoryName, true);
            var listAll = ListFilesAndDirectories();

            foreach (var m in listAll)
            {
                if (m.IsDirectory)
                {
                    RemoveDirectory(m.Path);
                }
                else
                {
                    DeleteFile(m.Name);
                }
            }
            GotoDirectory(remoteDirectoryName, true);
            response = PrivateAction.Open(this.ftpUserID, this.ftpPassword, this.request, new Uri(ftpURI), WebRequestMethods.Ftp.RemoveDirectory);
        }
 /// <summary>
 /// 下载
 /// </summary>
 /// <param name="saveFilePath">下载后的保存路径</param>
 /// <param name="downloadFileName">要下载的文件名</param>
 public void Download(string saveFilePath, string downloadFileName)
 {
     using (FileStream outputStream = new FileStream(saveFilePath + "\\" + downloadFileName, FileMode.Create))
     {
         response = PrivateAction.Open(this.ftpUserID, this.ftpPassword, this.request, newUri(ftpURI + downloadFileName), WebRequestMethods.Ftp.DownloadFile);
         using (Stream ftpStream = response.GetResponseStream())
         {
             long   cl         = response.ContentLength;
             int    bufferSize = 2048;
             int    readCount;
             byte[] buffer = new byte[bufferSize];
             readCount = ftpStream.Read(buffer, 0, bufferSize);
             while (readCount > 0)
             {
                 outputStream.Write(buffer, 0, readCount);
                 readCount = ftpStream.Read(buffer, 0, bufferSize);
             }
         }
     }
 }
        /// <summary>
        /// 文件上传
        /// </summary>
        /// <param name="localFilePath">本地文件路径</param>
        public void Upload(string localFilePath)
        {
            FileInfo fileInf = new FileInfo(localFilePath);

            request = PrivateAction.OpenRequest(this.ftpUserID, this.ftpPassword, this.request, newUri(ftpURI + fileInf.Name), WebRequestMethods.Ftp.UploadFile);
            request.ContentLength = fileInf.Length;
            int buffLength = 2048;

            byte[] buff = new byte[buffLength];
            int    contentLen;

            using (var fs = fileInf.OpenRead())
            {
                using (var strm = request.GetRequestStream())
                {
                    contentLen = fs.Read(buff, 0, buffLength);
                    while (contentLen != 0)
                    {
                        strm.Write(buff, 0, contentLen);
                        contentLen = fs.Read(buff, 0, buffLength);
                    }
                }
            }
        }
 /// <summary>
 /// 更改目录或文件名
 /// </summary>
 /// <param name="currentName">当前名称</param>
 /// <param name="newName">修改后新名称</param>
 public void ReName(string currentName, string newName)
 {
     request          = PrivateAction.OpenRequest(this.ftpUserID, this.ftpPassword, this.request, newUri(ftpURI + currentName), WebRequestMethods.Ftp.Rename);
     request.RenameTo = newName;
     response         = (FtpWebResponse)request.GetResponse();
 }
 /// <summary>
 /// 创建目录
 /// </summary>
 /// <param name="remoteDirectoryName">目录名</param>
 public void CreateDirectory(string remoteDirectoryName)
 {
     response = PrivateAction.Open(this.ftpUserID, this.ftpPassword, this.request, newUri(ftpURI + remoteDirectoryName), WebRequestMethods.Ftp.MakeDirectory);
 }
 /// <summary>
 /// 删除文件
 /// </summary>
 /// <param name="remoteFileName">要删除的文件名</param>
 public void DeleteFile(string remoteFileName)
 {
     response = PrivateAction.Open(this.ftpUserID, this.ftpPassword, this.request, newUri(ftpURI + remoteFileName), WebRequestMethods.Ftp.DeleteFile);
 }