我连不上 咋回事腻
[R] 正在连接到 CN101 FTP资料库地 -> IP=219.237.206.56 PORT=21
[R] 已连接到 CN101 FTP资料库地
[R] 220 Serv-U FTP Server v6.1 for WinSock ready...
[R] USER falcon4
[R] 331 User name okay, need password.
[R] PASS (hidden)
[R] 530 Not logged in, only one session from same IP allowed at a time.
[R] 连接失败
[R] 正在延迟 120 秒,在此之后将尝试第 1 次重新连接