1. The centos7 Ali image is installed on the local virtual machine, and 
 modifies  ONBOOT=yes  in  / etc/sysconfig/network-scripts/ifcfg-ens33 . Then  systemctl restart network.service  
 2.  systemctl status network.service  found that it was not successful. The error message is as follows: 
  
 3. Baidu"s answers are always copied from each other on, Stack Overflow, but no solution has been found. It has tried various solutions 
 the following solutions have not been solved 
systemctl stop NetworkManager
systemctl disable NetworkManger
systemctl restart network.service
 didn"t succeed either. 
 I hope you can help me with this problem that has been bothering me for a long time. The same image file, installed on my computer at home, can restart the network, but not on the company computer. It"s annoying 
