PING www.zzyuyuan.cn (160.202.248.30) 56(84) bytes of data.
64 bytes from 160.202.248.30 (160.202.248.30): icmp_seq=1 ttl=48 time=279 ms
64 bytes from 160.202.248.30 (160.202.248.30): icmp_seq=2 ttl=48 time=280 ms
64 bytes from 160.202.248.30 (160.202.248.30): icmp_seq=3 ttl=48 time=279 ms

--- www.zzyuyuan.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1999ms
rtt min/avg/max/mdev = 279.582/279.858/280.019/0.196 ms