PING proxy.cn.qizhihaotian.com (180.163.233.104) 56(84) bytes of data.
64 bytes from 180.163.233.104 (180.163.233.104): icmp_seq=1 ttl=38 time=293 ms
64 bytes from 180.163.233.104 (180.163.233.104): icmp_seq=2 ttl=38 time=293 ms
64 bytes from 180.163.233.104 (180.163.233.104): icmp_seq=3 ttl=38 time=293 ms

--- proxy.cn.qizhihaotian.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1999ms
rtt min/avg/max/mdev = 293.193/293.360/293.686/0.498 ms