1.使用cmd命令行ping IP地址，可以连接；
2.ftp IP地址，提示连接到IP地址220（vsFTPd 3.0.3）；
3.输入用户名uftp（331 Please specify the password），密码：
230 Login successful.
4.ftp>ls
200 port commad successful.Consider usin PASV.
150 Here comes the directory listing.
pub
226 Directory send OK.
5.ftp>cd pub
250 Directory successfully changed.
6.ftp>dir
200 port commad successful.Consider usin PASV.
150 Here comes the directory listing.
226 Directory send OK.
7.ftp>get
远程文件
8.ftp>put
本地文件 xxxx
远程文件
200 port commad successful.Consider usin PASV.
150 Ok to send data.
226 Transfer complete.
ftp：发送xx