PING www.gdweitian.cn (45.66.191.91) 56(84) bytes of data.
64 bytes from 45.66.191.91 (45.66.191.91): icmp_seq=1 ttl=55 time=304 ms
64 bytes from 45.66.191.91 (45.66.191.91): icmp_seq=2 ttl=55 time=303 ms
64 bytes from 45.66.191.91 (45.66.191.91): icmp_seq=3 ttl=55 time=303 ms

--- www.gdweitian.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 303.969/304.057/304.209/0.462 ms