PING proxy.cn.qizhihaotian.com (106.63.29.9) 56(84) bytes of data.
64 bytes from 106.63.29.9: icmp_seq=1 ttl=52 time=255 ms
64 bytes from 106.63.29.9: icmp_seq=2 ttl=52 time=260 ms
64 bytes from 106.63.29.9: icmp_seq=3 ttl=52 time=257 ms

--- proxy.cn.qizhihaotian.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 6364ms
rtt min/avg/max/mdev = 255.249/257.781/260.811/2.334 ms