PING gulongshui.zhangfeichenjun.cn (155.159.151.213) 56(84) bytes of data.
64 bytes from 155.159.151.213: icmp_seq=1 ttl=57 time=198 ms
64 bytes from 155.159.151.213: icmp_seq=2 ttl=57 time=198 ms
64 bytes from 155.159.151.213: icmp_seq=3 ttl=57 time=198 ms

--- gulongshui.zhangfeichenjun.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 198.442/198.636/198.911/0.551 ms