mount FTP fs：
sudo curlftpfs -o codepage=gbk ftp://username:password@192.168.0.2 /mnt
mount ftp, rc add
sudo curlftpfs -o rw,allow_other -o codepage=gbk ftp://wyk:password@192.168.0.1/volume1/ /mnt/SDCARD/ftp
sudo curlftpfs -o rw,allow_other -o codepage=gbk ftp://wyk:password@192.168.0.1/volume1/audio /mnt/SDCARD/ftp-audio