PING www.hylinux.cn (156.239.42.122) 56(84) bytes of data.
64 bytes from 156.239.42.122 (156.239.42.122): icmp_seq=1 ttl=57 time=149 ms
64 bytes from 156.239.42.122 (156.239.42.122): icmp_seq=2 ttl=57 time=148 ms
64 bytes from 156.239.42.122 (156.239.42.122): icmp_seq=3 ttl=57 time=147 ms

--- www.hylinux.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 147.890/148.410/149.313/0.779 ms