PING www.zhenghaotongda.cn (38.33.252.1) 56(84) bytes of data.
64 bytes from 38.33.252.1 (38.33.252.1): icmp_seq=1 ttl=57 time=144 ms
64 bytes from 38.33.252.1 (38.33.252.1): icmp_seq=2 ttl=57 time=141 ms
64 bytes from 38.33.252.1 (38.33.252.1): icmp_seq=3 ttl=57 time=141 ms

--- www.zhenghaotongda.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 141.493/142.438/144.264/1.327 ms