PING proxy.cn.qizhihaotian.com (106.63.29.13) 56(84) bytes of data.
64 bytes from 106.63.29.13: icmp_seq=1 ttl=52 time=268 ms
64 bytes from 106.63.29.13: icmp_seq=2 ttl=52 time=268 ms
64 bytes from 106.63.29.13: icmp_seq=3 ttl=52 time=268 ms

--- proxy.cn.qizhihaotian.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 5086ms
rtt min/avg/max/mdev = 268.002/268.113/268.255/0.105 ms