1、问题简述：
重启网卡：systemctl restart network,出现如下错误
2、查看错误日志，体现如下：
3、根据错误提示，进入到对应位置vi /etc/sysconfig/network-script/下
4、发现里面多了很多除了ifcfg-ens33,ifcfg-lo之外的文件，果断删除
rm -rf ifcfg-ens33.swo ifcfg-ens33.swp ifcfg-default ifcfg-static
5、重启网卡之后发现还是报错
6、进入提示报错的位置： vi /etc/sysconfig/network-script/ifup-eth, 检查了一下，发现这个文件里面多了很多东西，删除多余的东西，最终留下内容如下：
#!/bin/bash# Network Interface Configuration System# Copyright (c) 1996- Red Hat, Inc. all rights reserved.## This program is free software; you can redistribute it and/or modify# it under the terms of the GNU General Public License, version 2,# as published by the Free Software Foundation.## This program is distributed in the hope that it will be useful,# but WITHOUT ANY WARRANTY; without even the implied warranty of# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the# GNU General Public License for more details.## You should have received a copy of the GNU General Public License# along with this program; if not, write to the Free Software# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.. /etc/init.d/functionscd /etc/sysconfig/network-scripts. ./network-functions[ -f ../network ] && . ../networkCONFIG=${1}need_config "${CONFIG}"source_configif [ "${BOOTPROTO}" = "bootp" -o "${BOOTPROTO}" = "dhcp" ]; thenDYNCONFIG=truefi
7、重启网卡： systemctl restart network ,成功！！！！！！！！！
