PING www.szguanjing.com (47.52.221.231) 56(84) bytes of data.
64 bytes from 47.52.221.231 (47.52.221.231): icmp_seq=1 ttl=121 time=257 ms
64 bytes from 47.52.221.231 (47.52.221.231): icmp_seq=2 ttl=121 time=256 ms
64 bytes from 47.52.221.231 (47.52.221.231): icmp_seq=3 ttl=121 time=255 ms

--- www.szguanjing.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 255.984/256.384/257.168/0.554 ms