進(jìn)入docker相應(yīng)容器
sudo docker exec -it ID bash
vim打開配置文件（位置與ubuntu相同）
vim /etc/apt/sources.list
注釋掉所有有效內(nèi)容跪腹，然后加入如下內(nèi)容（參考 https://mirrors.tuna.tsinghua.edu.cn/help/ubuntu/?spm=a2c4e.10696291.0.0.51fa19a4N1S6az）
# 默認(rèn)注釋了源碼鏡像以提高 apt update 速度娇钱，如有需要可自行取消注釋
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 multiverse
deb 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 multiverse
deb 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 multiverse
deb 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
更新看看速度：
sudo apt-get update
sudo apt-get upgrade?? (慎用嘿歌，我的系統(tǒng)因為安裝了docker-nvidia,中斷了升級)
