PING jcpa.cn (103.139.2.138) 56(84) bytes of data.
64 bytes from 103.139.2.138 (103.139.2.138): icmp_seq=1 ttl=60 time=228 ms
64 bytes from 103.139.2.138 (103.139.2.138): icmp_seq=2 ttl=60 time=227 ms
64 bytes from 103.139.2.138 (103.139.2.138): icmp_seq=3 ttl=60 time=227 ms

--- jcpa.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 227.517/227.718/228.113/0.279 ms