/// <summary>
        /// FTP的服務(wù)器地址，格式為ftp://192.168.1.234:8021/。
        /// </summary>
        public string FTPCONSTR { get; set; }
        /// <summary>
        /// //FTP服務(wù)器的用戶名
        /// </summary>
        private string FTPUSERID { get; set; }
        /// <summary>
        /// //FTP服務(wù)器的密碼
        /// </summary>
        private string FTPPASSWORD { get; set; }
        private string ftpIP { get; set; }
        private string ftpPort { get; set; }

public FTPHelper(string ip = "IP", string username = "登錄用戶名", string password = "用戶密碼", string port = "端口")
        {
            FTPCONSTR = string.Format("{0}://{1}:{2}/", "ftp", ip, port);
            FTPUSERID = username;
            FTPPASSWORD = password;
        }

        /// <summary>
        /// 上傳文件到遠(yuǎn)程ftp
        /// </summary>
        /// <param name="path">本地的文件目錄</param>
        /// <param name="name">文件名稱</param>
        /// <returns></returns>
        public bool UploadFile(string path, string name)
        {
            FileInfo f = new FileInfo(path);
            path = FTPCONSTR + name;//這個(gè)路徑是我要傳到ftp目錄下的這個(gè)目錄下
            FtpWebRequest reqFtp = (FtpWebRequest)FtpWebRequest.Create(new Uri(path));
            reqFtp.Method = WebRequestMethods.Ftp.UploadFile;
            reqFtp.UsePassive = false;//只需要添加這一句話
            reqFtp.UseBinary = true;
            reqFtp.Credentials = new NetworkCredential(FTPUSERID, FTPPASSWORD);
            reqFtp.KeepAlive = false;
            reqFtp.Method = WebRequestMethods.Ftp.UploadFile;
            reqFtp.ContentLength = f.Length;
            int buffLength = 2048;
            byte[] buff = new byte[buffLength];
            int contentLen;
            FileStream fs = f.OpenRead();
            try
            {
                Stream strm = reqFtp.GetRequestStream();
                contentLen = fs.Read(buff, 0, buffLength);
                while (contentLen != 0)
                {
                    strm.Write(buff, 0, contentLen);
                    contentLen = fs.Read(buff, 0, buffLength);
                }
                strm.Close();
                fs.Close();
                return true;
            }
            catch (Exception ex)
            {
                return false;
            }
        }

            string txtFilePath="";
            try
            {
                OpenFileDialog openFileDialogTemp = new OpenFileDialog();
                openFileDialogTemp.Title = "選擇要上傳的文件";
                DialogResult dr = openFileDialogTemp.ShowDialog();
                if (!File.Exists(openFileDialogTemp.FileName))
                {
                    GLOBALS.msgbox("內(nèi)容為空，請(qǐng)選擇文件");
                    return;
                }
                if (dr == DialogResult.OK)
                {
                    txtFilePath= openFileDialogTemp.FileName;
                    string filePath = this.txtFilePath.Text;
 
                }
            }
            catch (Exception ex)
            {
 
            }
            string id = DateTime.Now.ToString("yyyyMMddHHmmss");
            string isPath = DateTime.Now.ToString("yyyy-MM-dd");
            string filePath = txtFilePath;
            string uploadUrl = isPath + "\\" + id + ".jpg";                
            FTPHelper FTPHelper = new FTPHelper();
            bool uploadresult = FTPHelper.UploadFile(filePath, uploadUrl);