PING jx212.21food.cn (115.239.209.151) 56(84) bytes of data.
64 bytes from 115.239.209.151 (115.239.209.151): icmp_seq=1 ttl=52 time=277 ms
64 bytes from 115.239.209.151 (115.239.209.151): icmp_seq=2 ttl=52 time=277 ms
64 bytes from 115.239.209.151 (115.239.209.151): icmp_seq=3 ttl=52 time=277 ms

--- jx212.21food.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 277.109/277.367/277.817/0.686 ms