阿里云source（更新yum的CentOS-Base.repo）

[base]   name=CentOS-6 - Base   repo=os   baseurl=http://mirrors.aliyun.com/centos/6/os/$basearch/   gpgcheck=1   gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-6#released updates   [update]   name=CentOS-6 - Updates   baseurl=http://mirrors.aliyun.com/centos/6/updates/$basearch/   gpgcheck=1   gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-6#packages used/produced in the build but not released   #[addons]#name=CentOS-6 - Addons#baseurl=http://mirrors.aliyun.com/centos/6/addons/$basearch/#gpgcheck=1#gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-6#additional packages that may be useful   [extras]   name=CentOS-6 - Extras   baseurl=http://mirrors.aliyun.com/centos/6/extras/$basearch/   gpgcheck=1   gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-6#additional packages that extend functionality of existing packages   [centosplus]   name=CentOS-6 - Plus   baseurl=http://mirrors.aliyun.com/centos/6/centosplus/$basearch/   gpgcheck=1   enabled=1   gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-6#contrib - packages by Centos Users   [contrib]   name=CentOS-6 - Contrib   baseurl=http://mirrors.aliyun.com/centos/6/contrib/$basearch/   gpgcheck=1   enabled=0   gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-6