PING www.jhskt.cn (121.42.68.9) 56(84) bytes of data.
64 bytes from 121.42.68.9 (121.42.68.9): icmp_seq=1 ttl=45 time=256 ms
64 bytes from 121.42.68.9 (121.42.68.9): icmp_seq=2 ttl=45 time=253 ms
64 bytes from 121.42.68.9 (121.42.68.9): icmp_seq=3 ttl=45 time=253 ms

--- www.jhskt.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 253.099/254.383/256.923/1.842 ms