PING www.sunpengfei.cn (121.42.81.200) 56(84) bytes of data.
64 bytes from 121.42.81.200 (121.42.81.200): icmp_seq=1 ttl=46 time=257 ms
64 bytes from 121.42.81.200 (121.42.81.200): icmp_seq=2 ttl=46 time=256 ms
64 bytes from 121.42.81.200 (121.42.81.200): icmp_seq=3 ttl=46 time=256 ms

--- www.sunpengfei.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 256.812/257.015/257.328/0.626 ms