$ ping
hk.p-vpn.comPING
hk.p-vpn.com (103.6.85.139): 56 data bytes
64 bytes from 103.6.85.139: icmp_seq=0 ttl=50 time=80.733 ms
64 bytes from 103.6.85.139: icmp_seq=1 ttl=50 time=80.320 ms
64 bytes from 103.6.85.139: icmp_seq=2 ttl=50 time=78.108 ms
64 bytes from 103.6.85.139: icmp_seq=3 ttl=50 time=79.951 ms
64 bytes from 103.6.85.139: icmp_seq=4 ttl=50 time=79.597 ms
^C
---
hk.p-vpn.com ping statistics ---
5 packets transmitted, 5 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 78.108/79.742/80.733/0.900 ms
这个怎样?