网上找了很久都找不到centos 7 的163源，大多只有6的配置。写了一个7能用的。注意下版本，换成自己的版本吧
[base]name=CentOS-$releasever – Base – 163.com#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=osbaseurl=http://mirrors.163.com/centos/7.1.1503/updates/x86_64gpgcheck=0gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7#released updates[updates]name=CentOS-$releasever – Updates – 163.com#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updatesbaseurl=http://mirrors.163.com/centos/7.1.1503/updates/x86_64gpgcheck=0gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7#packages used/produced in the build but not released[addons]name=CentOS-$releasever – Addons – 163.com#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=addonsbaseurl=http://mirrors.163.com/centos/7.1.1503/updates/x86_64gpgcheck=0gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7#additional packages that may be useful[extras]name=CentOS-$releasever – Extras – 163.com#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extrasbaseurl=http://mirrors.163.com/centos/7.1.1503/updates/x86_64gpgcheck=0gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7#additional packages that extend functionality of existing packages[centosplus]name=CentOS-$releasever – Plus – 163.com#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplusbaseurl=http://mirrors.163.com/centos/7.1.1503/updates/x86_64gpgcheck=0enabled=0gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7#contrib – packages by Centos Users[contrib]name=CentOS-$releasever – Contrib – 163.com#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contribbaseurl=http://mirrors.163.com/centos/7.1.1503/updates/x86_64gpgcheck=0enabled=0gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7要修改的文件在这个路径下：/etc/yum.repos.d
记得备份下原文件。
，想象困难做出的反应，不是逃避或绕开它们，
