[1] 首先备份/etc/yum.repos.d/CentOS-Base.repo `mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup` [2] 进入yum源配置文件所在文件夹 `[root@localhost yum.repos.d]# cd /etc/yum.repos.d/` [3] 下载163的yum源配置文件，放入/etc/yum.repos.d/(操作前请做好相应备份) `[root@localhost yum.repos.d]# wget http://mirrors.163.com/.help/CentOS6-Base-163.repo` [4] 运行yum makecache生成缓存 `[root@localhost yum.repos.d]# yum makecache` [5] 更新系统 `[root@localhost yum.repos.d]# yum -y update` [6] 安装vim编辑器 `[root@localhost ~]# yum -y install vim*`