解决 Job for network.service failed. See 'systemctl status network.service' and 'journalctl -xn'问题

直接第三种
按顺序输入以下命令就ok了。

systemctl status network.service 

systemctl stop NetworkManager

systemctl disable NetworkManager

systemctl start network.service

ifconfig

更详细操作，请参考：
https://blog.csdn.net/weixin_39663255/article/details/80892774