PING www.com--www.xiantianan.cn (121.204.244.43) 56(84) bytes of data.
64 bytes from 121.204.244.43 (121.204.244.43): icmp_seq=1 ttl=113 time=278 ms
64 bytes from 121.204.244.43 (121.204.244.43): icmp_seq=2 ttl=113 time=278 ms
64 bytes from 121.204.244.43 (121.204.244.43): icmp_seq=3 ttl=113 time=278 ms

--- www.com--www.xiantianan.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 278.361/278.491/278.703/0.456 ms