[root@hzl ~]# cd /etc/sysconfig/network-scripts/
[root@hzl ~]# mv ifcfg-ens33 ifcfg-eth0

[root@hzl ~]# sed -i "s#ens33#eth0#g" ifcfg-eth0

[root@hzl ~]# vim /etc/sysconfig/grub
GRUB_CMDLINE_LINUX="rhgb quiet 'net.ifnames=0 biosdevname=0'"

[root@hzl ~]# grub2-mkconfig -o /boot/grub2/grub.cfg

[root@hzl ~]# reboot