PING www.guotaijunan.cn (108.186.101.51) 56(84) bytes of data.
64 bytes from 108.186.101.51: icmp_seq=1 ttl=121 time=144 ms
64 bytes from 108.186.101.51: icmp_seq=2 ttl=121 time=141 ms
64 bytes from 108.186.101.51: icmp_seq=3 ttl=121 time=142 ms

--- www.guotaijunan.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 3512ms
rtt min/avg/max/mdev = 141.840/142.845/144.668/1.362 ms