PING www.shanghaijiaoyou.com (156.253.81.50) 56(84) bytes of data.
64 bytes from 156.253.81.50 (156.253.81.50): icmp_seq=1 ttl=57 time=184 ms
64 bytes from 156.253.81.50 (156.253.81.50): icmp_seq=2 ttl=57 time=184 ms
64 bytes from 156.253.81.50 (156.253.81.50): icmp_seq=3 ttl=57 time=184 ms

--- www.shanghaijiaoyou.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 184.418/184.486/184.610/0.503 ms