PING www.dfgg.org.cn (154.197.196.153) 56(84) bytes of data.
64 bytes from 154.197.196.153 (154.197.196.153): icmp_seq=1 ttl=116 time=159 ms
64 bytes from 154.197.196.153 (154.197.196.153): icmp_seq=2 ttl=116 time=158 ms
64 bytes from 154.197.196.153 (154.197.196.153): icmp_seq=3 ttl=116 time=158 ms

--- www.dfgg.org.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 158.307/158.740/159.003/0.308 ms