debian9
官方源：
deb http://ftp.debian.org/debian stretch main contrib
deb http://ftp.debian.org/debian stretch-updates main contrib
deb http://security.debian.org stretch/updates main contrib
deb-src [arch=amd64] https://download.docker.com/linux/debian stretch stable //docker源
中科大源：
deb http://mirrors.ustc.edu.cn/debian stable main contrib non-free
deb http://mirrors.ustc.edu.cn/debian stable-updates main contrib non-free
deb [arch=amd64] http://mirrors.ustc.edu.cn/docker-ce/linux/debian stretch stable //docker源
debian10
官方源：
deb http://ftp.debian.org/debian buster main contrib
deb http://ftp.debian.org/debian buster-updates main contrib
deb http://security.debian.org stretch/updates main contrib
deb-src [arch=amd64] https://download.docker.com/linux/debian buster stable //docker源
中科大源：
deb http://mirrors.ustc.edu.cn/debian buster main contrib non-free
deb http://mirrors.ustc.edu.cn/debian buster-updates main contrib non-free
deb [arch=amd64] http://mirrors.ustc.edu.cn/docker-ce/linux/debian buster stable //docker源