CentOS8配置yum源
阿里云yum源配置方法 (要有网)1. cd /etc/yum.repo.d2. touch CentOS-AppStream.repo CentOS-BaseOS.repo CentOS-Extras.repo3. 编辑各个文件内容 CentOS-AppStream.repo [aliyun-AppStream] name=CentOS-$releasever - AppStream baseurl=https://mirrors.aliyun.com/centos/$r