1.创建文件输入网页中需要复制的 cat >/etc/yum.repos.d/nginx.repo<<EOF [nginx-stable] name=nginx stable repo baseurl=http://nginx.org/packages/centos/$releasever/$basearch/ gpgcheck=0 enabled=1 gpgkey=https://nginx.org/keys/nginx_signing.key module_hotfixes=true EOF
完成上一步 操作，输入yum makecache命令更新yum后安装