操作系统版本为：openEuler-21.09
打算更换为华为镜像站，加速下载

sed -i "s#http://repo.openeuler.org#https://mirrors.huaweicloud.com/openeuler#g" /etc/yum.repos.d/openEuler.repo
sed -i 's#EPOL/$basearch#EPOL/main/$basearch#g' /etc/yum.repos.d/openEuler.repo