轉載至：https://www.cnblogs.com/zhenzaizai/p/7434669.html


using  System; using  System.Collections.Generic; using  System.IO; using  System.Linq; using  System.Net; using  System.Security.Cryptography; using  System.Text; using  System.Windows.Forms;   namespace  UpLoad {      class  UpLoadFiles      {          private  static  string  FTPCONSTR =  "" ; //FTP的伺服器地址，格式為ftp://192.168.1.234:8021/。ip地址和埠換成自己的，這些建議寫在配置檔案中，方便修改          private  static  string  FTPUSERNAME =  "" ; //FTP伺服器的使用者名稱          private  static  string  FTPPASSWORD =  "" ; //FTP伺服器的密碼            #region 本地檔案上傳到FTP伺服器          /// <summary>          /// 上傳檔案到遠端ftp          /// </summary>          /// <param name="path">本地的檔案目錄</param>          /// <param name="name">檔名稱</param>          /// <returns></returns>          public  static  bool  UploadFile( string  path,  string  name)          {              string  erroinfo =  "" ;              FileInfo f =  new  FileInfo(path);              path = path.Replace( "\\" ,  "/" );              path = FTPCONSTR +  "/data/uploadFile/photo/"  + name; //這個路徑是我要傳到ftp目錄下的這個目錄下              FtpWebRequest reqFtp = (FtpWebRequest)FtpWebRequest.Create( new  Uri(path));              reqFtp.UseBinary =  true ;              reqFtp.Credentials =  new  NetworkCredential(FTPUSERNAME, 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);