关闭DHCP
sudo systemctl stop dhcpcd
sudo systemctl disable dhcpcd
sudo systemctl daemon-reload //会输入密码
sudo systemctl restart networking //会输人密码
重新开启DHCP
sudo systemctl start dhcpcd
sudo systemctl enable dhcpcd
关闭DHCP
sudo systemctl stop dhcpcd
sudo systemctl disable dhcpcd
sudo systemctl daemon-reload //会输入密码
sudo systemctl restart networking //会输人密码
重新开启DHCP
sudo systemctl start dhcpcd
sudo systemctl enable dhcpcd