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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.backup2、进入yum源配置文件所在文件夹
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)
wget http://mirrors.163.com/.help/CentOS6-Base-163.repo4、运行yum makecache生成缓存
yum makecache5、更新系统
yum -y update
yum -y install vim*
