PING www.houfei.cn (120.77.213.31) 56(84) bytes of data.
64 bytes from 120.77.213.31 (120.77.213.31): icmp_seq=1 ttl=50 time=200 ms
64 bytes from 120.77.213.31 (120.77.213.31): icmp_seq=2 ttl=50 time=199 ms
64 bytes from 120.77.213.31 (120.77.213.31): icmp_seq=3 ttl=50 time=200 ms

--- www.houfei.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 199.954/200.080/200.280/0.392 ms