PING www.jiayuan-cn.com.cn (38.12.92.56) 56(84) bytes of data.
64 bytes from 38.12.92.56 (38.12.92.56): icmp_seq=1 ttl=121 time=145 ms
64 bytes from 38.12.92.56 (38.12.92.56): icmp_seq=2 ttl=121 time=142 ms
64 bytes from 38.12.92.56 (38.12.92.56): icmp_seq=3 ttl=121 time=142 ms

--- www.jiayuan-cn.com.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 142.718/143.552/145.026/1.045 ms