#科大源 deb http://mirrors.ustc.edu.cn/debian/ stretch main non-free contribdeb http://mirrors.ustc.edu.cn/debian/ stretch-updates main non-free contribdeb http://mirrors.ustc.edu.cn/debian/ stretch-backports main non-free contribdeb-src http://mirrors.ustc.edu.cn/debian/ stretch main non-free contribdeb-src http://mirrors.ustc.edu.cn/debian/ stretch-updates main non-free contribdeb-src http://mirrors.ustc.edu.cn/debian/ stretch-backports main non-free contribdeb http://mirrors.ustc.edu.cn/debian-security/ stretch/updates main non-free contribdeb-src http://mirrors.ustc.edu.cn/debian-security/ stretch/updates main non-free contrib

#清华源 deb https://mirrors.tuna.tsinghua.edu.cn/debian/ stretch main non-free contribdeb https://mirrors.tuna.tsinghua.edu.cn/debian/ stretch-updates main non-free contribdeb https://mirrors.tuna.tsinghua.edu.cn/debian/ stretch-backports main non-free contribdeb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ stretch main non-free contribdeb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ stretch-updates main non-free contribdeb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ stretch-backports main non-free contribdeb https://mirrors.tuna.tsinghua.edu.cn/debian-security/ stretch/updates main non-free contribdeb-src https://mirrors.tuna.tsinghua.edu.cn/debian-security/ stretch/updates main non-free contrib

#网易源 deb http://mirrors.163.com/debian/ stretch main non-free contribdeb http://mirrors.163.com/debian/ stretch-updates main non-free contribdeb http://mirrors.163.com/debian/ stretch-backports main non-free contribdeb-src http://mirrors.163.com/debian/ stretch main non-free contribdeb-src http://mirrors.163.com/debian/ stretch-updates main non-free contribdeb-src http://mirrors.163.com/debian/ stretch-backports main non-free contribdeb http://mirrors.163.com/debian-security/ stretch/updates main non-free contribdeb-src http://mirrors.163.com/debian-security/ stretch/updates main non-free contrib