ftp://mp3:mp3@520fs.com/

WinSock 2.0 -- OpenSSL 0.9.8g 19 Oct 2007
[右] 正在连接到 520fs.com -> DNS=520fs.com IP=222.186.30.165 PORT=21
[右] 已连接到 520fs.com
[右] 220 Serv-U FTP Server v6.4 for WinSock ready...
[右] USER mp3
[右] 331 User name okay, need password.
[右] PASS (隐藏)
[右] 230 User logged in, proceed.
[右] SYST
[右] 215 UNIX Type: L8
[右] FEAT
[右] 211-Extension supported
[右]  AUTH TLS
[右]  SSCN
[右]  PBSZ
[右]  PROT
[右]  CCC
[右]  CLNT
[右]  MDTM
[右]  MDTM YYYYMMDDHHMMSS[+-TZ];filename
[右]  SIZE
[右]  SITE PSWD;EXEC;SET;INDEX;ZONE;CHMOD;MSG
[右]  REST STREAM
[右]  XCRC filename;start;end
[右]  MODE Z
[右]  MLST Type*;Size*;Create;Modify*;Win32.ea*;
[右] 211 End
[右] CLNT 3.6.0.1240