@popok 我用了学校的 dns 和 8.8.8.8 ,都可以 ping 通域名 PING z.cn (54.222.60.252) 56(84) bytes of data. 64 bytes from 54.222.60.252: icmp_seq=1 ttl=233 time=129 ms 64 bytes from 54.222.60.252: icmp_seq=2 ttl=233 time=128 ms 64 bytes from 54.222.60.252: icmp_seq=3 ttl=233 time=126 ms