毫秒级啊, 你看一下面的数据,你觉着可能吗? Mac-mini:~ ng$ ping www.baidu.com PING www.a.shifen.com (14.215.177.37): 56 data bytes 64 bytes from 14.215.177.37: icmp_seq=0 ttl=57 time=6.383 ms 64 bytes from 14.215.177.37: icmp_seq=1 ttl=57 time=5.174 ms 64 bytes from 14.215.177.37: icmp_seq=2 ttl=57 time=5.423 ms 64 bytes from 14.215.177.37: icmp_seq=3 ttl=57 time=5.008 ms 64 bytes from 14.215.177.37: icmp_seq=4 ttl=57 time=6.042 m