使用sudo service network restart去启动网络时起不来
使用systemctl status network.service查看网络状态也是failed，且报错Failed to start LSB: Bring up/down
解决办法：
依次执行以下指令
systemctl stop NetworkManager
systemctl disable NetworkManager
重新启动网络：
systemctl start network.service
使用sudo service network restart去启动网络时起不来
使用systemctl status network.service查看网络状态也是failed，且报错Failed to start LSB: Bring up/down
解决办法：
依次执行以下指令
systemctl stop NetworkManager
systemctl disable NetworkManager
重新启动网络：
systemctl start network.service