Linux CentOS7 更新yum镜像疑问：CentOS7更换腾讯云镜像
CentOS7更换腾讯云镜像如果未安装先wegt（CentOS7默认已安装）yum install wget备份mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup下载CentOS 7的repo文件wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.cloud.tencent.com/repo/centos7_base.repo
