PING www.kangfun.com (47.90.104.251) 56(84) bytes of data.
64 bytes from 47.90.104.251 (47.90.104.251): icmp_seq=1 ttl=57 time=247 ms
64 bytes from 47.90.104.251 (47.90.104.251): icmp_seq=2 ttl=57 time=245 ms
64 bytes from 47.90.104.251 (47.90.104.251): icmp_seq=3 ttl=57 time=245 ms

--- www.kangfun.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 245.645/246.173/247.137/0.890 ms