PING office.wjw.cn (115.239.209.75) 56(84) bytes of data.
64 bytes from 115.239.209.75 (115.239.209.75): icmp_seq=1 ttl=116 time=261 ms
64 bytes from 115.239.209.75 (115.239.209.75): icmp_seq=2 ttl=116 time=260 ms
64 bytes from 115.239.209.75 (115.239.209.75): icmp_seq=3 ttl=116 time=260 ms

--- office.wjw.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 260.583/260.850/261.314/0.329 ms