IntelliJ IDEA 无法预览 Markdown 文件的解决思路

CentOS 中 YUM 源一键更新

Ramboooooooo: CentOS 7 宣布在 2024-06-30 停止了维护，镜像站点也随之关闭，采用阿里云的镜像站 sudo sed -i 's|^mirrorlist=|#mirrorlist=|' /etc// sudo sed -i 's|^#baseurl=/centos/\$releasever/os/\$basearch/|baseurl=/centos/7/os/\$basearch/|' /etc// sudo sed -i 's|^#baseurl=/centos/\$releasever/updates/\$basearch/|baseurl=/centos/7/updates/\$basearch/|' /etc// sudo sed -i 's|^#baseurl=/centos/\$releasever/extras/\$basearch/|baseurl=/centos/7/extras/\$basearch/|' /etc// sudo sed -i 's|^#baseurl=/centos/\$releasever/centosplus/\$basearch/|baseurl=/centos/7/centosplus/\$basearch/|' /etc//