<h1>#首先进行备份</h1><pre class="ql-syntax" spellcheck="false">mv /etc/yum.repos.d/CentOs-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup </pre><h1># 进行下载</h1><pre class="ql-syntax" spellcheck="false">curl http://mirrors.163.com/.help/CentOS7-Base-163.repo -o CentOS7-Base-163.repo </pre><h1># 执行安装</h1><p><br></p><pre class="ql-syntax" spellcheck="false">yum clean all </pre><h2># 清理缓存</h2><p><br></p><pre class="ql-syntax" spellcheck="false">yum makecache </pre><p><strong class="ql-size-large"># 至此就完成了安装。</strong></p>