PING www.23tao.cn (172.67.220.190) 56(84) bytes of data.
64 bytes from 172.67.220.190 (172.67.220.190): icmp_seq=1 ttl=60 time=4.61 ms
64 bytes from 172.67.220.190 (172.67.220.190): icmp_seq=2 ttl=60 time=4.02 ms
64 bytes from 172.67.220.190 (172.67.220.190): icmp_seq=3 ttl=60 time=4.07 ms

--- www.23tao.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 4.025/4.237/4.610/0.264 ms