PING ip-www.haikouyechun.com (156.250.68.212) 56(84) bytes of data.
64 bytes from 156.250.68.212 (156.250.68.212): icmp_seq=1 ttl=120 time=248 ms
64 bytes from 156.250.68.212 (156.250.68.212): icmp_seq=2 ttl=120 time=245 ms
64 bytes from 156.250.68.212 (156.250.68.212): icmp_seq=3 ttl=120 time=245 ms

--- ip-www.haikouyechun.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 245.696/246.490/248.060/1.110 ms