raspberry source list

vi /etc/apt/sources.list

deb https://mirrors.aliyun.com/raspbian/raspbian stretch main contrib non-free rpi

http://blog.csdn.net/loveaborn/article/details/12224841

https://www.raspbian.org/RaspbianMirrors

https://mirrors.tuna.tsinghua.edu.cn/raspbian/raspbian/