PING www.yumiaojizhi.net (121.42.88.242) 56(84) bytes of data.
64 bytes from 121.42.88.242 (121.42.88.242): icmp_seq=1 ttl=43 time=251 ms
64 bytes from 121.42.88.242 (121.42.88.242): icmp_seq=2 ttl=43 time=250 ms
64 bytes from 121.42.88.242 (121.42.88.242): icmp_seq=3 ttl=43 time=250 ms

--- www.yumiaojizhi.net ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 250.145/250.443/251.024/0.708 ms