https://lubuntu.net/
都说Lubuntu界面丑，我感觉还行啊！系统稳定，轻量级，速度还挺快，这些就很香了。
lubuntu上运行的东西在 ubuntu 一样可行。用起来很顺畅。先更个源。我用的Ubuntu18.04的源
https://mirrors.tuna.tsinghua.edu.cn/help/ubuntu/
sudo gedit /etc/apt/sources.list
然后粘贴。我是直接替换了所有内容
# 默认注释了源码镜像以提高 apt update 速度，如有需要可自行取消注释deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiversedeb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiversedeb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiversedeb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse# 预发布软件源，不建议启用# deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse##中科大源
```pythondeb https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiversedeb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiversedeb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiversedeb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiversedeb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiversedeb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse```
中科大的源貌似速度快一些