PING www.huaxueshiji.cn (47.108.176.179) 56(84) bytes of data.
64 bytes from 47.108.176.179 (47.108.176.179): icmp_seq=1 ttl=45 time=255 ms
64 bytes from 47.108.176.179 (47.108.176.179): icmp_seq=2 ttl=45 time=254 ms
64 bytes from 47.108.176.179 (47.108.176.179): icmp_seq=3 ttl=45 time=254 ms

--- www.huaxueshiji.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 254.759/254.997/255.448/0.664 ms