PING www.bjaocheng.cn (45.115.243.55) 56(84) bytes of data.
64 bytes from 45.115.243.55 (45.115.243.55): icmp_seq=1 ttl=58 time=276 ms
64 bytes from 45.115.243.55 (45.115.243.55): icmp_seq=2 ttl=58 time=296 ms
64 bytes from 45.115.243.55 (45.115.243.55): icmp_seq=3 ttl=58 time=257 ms

--- www.bjaocheng.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 257.299/276.732/296.736/16.105 ms