acdcGGE 首先换源deb [trusted=yes] https://mirror.sjtu.edu.cn/debian-ports/ unstable main contrib non-free-firmware non-free 然后sudo apt update sudo apt dist-upgrade 之后sudo apt install kde-plasma-desktop sudo reboot enjoy~ https://www.bilibili.com/video/BV1dZztYLERU/
普通安同小白 阿里云开源镜像站debian-ports源，链接：https://mirrors.aliyun.com/debian-ports/ 腾讯开源镜像站debian-ports源，链接：https://mirrors.cloud.tencent.com/debian-ports/