PING www.aa7a.cn (121.40.184.201) 56(84) bytes of data.
64 bytes from 121.40.184.201 (121.40.184.201): icmp_seq=1 ttl=51 time=202 ms
64 bytes from 121.40.184.201 (121.40.184.201): icmp_seq=2 ttl=51 time=200 ms
64 bytes from 121.40.184.201 (121.40.184.201): icmp_seq=3 ttl=51 time=200 ms

--- www.aa7a.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 200.943/201.317/202.026/0.720 ms