树莓派的国内源

#deb http://raspbian.raspberrypi.org/raspbian/ stretch main contrib non-free rpi

# Uncomment line below then 'apt-get update' to enable 'apt-get source'

#deb-src http://raspbian.raspberrypi.org/raspbian/ stretch main contrib non-free rpi

deb http://mirrors.ustc.edu.cn/raspbian/raspbian/ stretch main contrib non-free rpi

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

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