ftp://61.163.6.73/软件/USB转串口适配器驱动程序/
[右] 正在连接到 新测 FTP -> IP=61.163.6.73 PORT=21
[右] 正在连接到 新测 FTP
[右] 220 net Microsoft FTP Service (Version 5.0).
[右] USER anonymous
[右] 331 Anonymous access allowed, send identity (e-mail name) as password.
[右] PASS (隐藏)
[右] 230-欢迎访问！
[右] 230 Anonymous user logged in.
[右] SYST
[右] 215 Windows_NT version 5.0
[右] FEAT
[右] 500 'FEAT': command not understood
[右] PWD
[右] 257 "/" is current directory.
[右] 列表 (已缓冲)
[右] 列表完成: 488 字节 于 1.03 秒 (0.5 KB/秒)
[右] TYPE A
[右] 200 Type set to A.
[右] PASV
[右] 227 Entering Passive Mode (61,163,6,73,14,251).
[右] 正打开数据连接 IP: 61.163.6.73 端口: 3835
[右] LIST -al
[右] 125 Data connection already open; Transfer starting.
[右] 226 Transfer complete.
[右] 列表完成: 1 KB 于 4.48 秒 (0.2 KB/秒)
