编辑软件源配置文件: sudo vi /etc/apt/sources.list
deb http://mirrors.aliyun.com/raspbian/raspbian/ stretch main contrib non-free rpi
执行sudo apt-get update
编辑软件源配置文件: sudo vi /etc/apt/sources.list
deb http://mirrors.aliyun.com/raspbian/raspbian/ stretch main contrib non-free rpi
执行sudo apt-get update