PING www.fjt-cn.cn (47.243.192.91) 56(84) bytes of data.
64 bytes from 47.243.192.91 (47.243.192.91): icmp_seq=1 ttl=57 time=256 ms
64 bytes from 47.243.192.91 (47.243.192.91): icmp_seq=2 ttl=57 time=255 ms
64 bytes from 47.243.192.91 (47.243.192.91): icmp_seq=3 ttl=57 time=256 ms

--- www.fjt-cn.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 255.916/256.045/256.199/0.595 ms