PING jmcjjj.wjw.cn (115.239.209.78) 56(84) bytes of data.
64 bytes from 115.239.209.78 (115.239.209.78): icmp_seq=1 ttl=116 time=259 ms
64 bytes from 115.239.209.78 (115.239.209.78): icmp_seq=2 ttl=116 time=260 ms
64 bytes from 115.239.209.78 (115.239.209.78): icmp_seq=3 ttl=116 time=257 ms

--- jmcjjj.wjw.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 257.540/259.088/260.263/1.215 ms