PING zhidao110.dianhi.com--zhidao110.dianhi.com (67.21.89.53) 56(84) bytes of data.
64 bytes from 67.21.89.53: icmp_seq=1 ttl=60 time=152 ms
64 bytes from 67.21.89.53: icmp_seq=2 ttl=60 time=149 ms
64 bytes from 67.21.89.53: icmp_seq=3 ttl=60 time=149 ms

--- zhidao110.dianhi.com--zhidao110.dianhi.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2100ms
rtt min/avg/max/mdev = 149.466/150.610/152.854/1.586 ms