ROS使用国内USTC源

首先打开终端输入
sudo sh -c '. /etc/lsb-release && echo "deb http://mirrors.ustc.edu.cn/ros/ubuntu/ $DISTRIB_CODENAME main" > /etc/apt/sources.list.d/ros-latest.list'
如果上面执行有问题，请使用下面方式
sudo sh -c 'echo "deb http://mirrors.ustc.edu.cn/ros/ubuntu/ $(lsb_release -sc) main" > /etc/apt/sources.list.d/ros-latest.list'

 设置密钥
wget https://raw.githubusercontent.com/ros/rosdistro/master/ros.key -O - | sudo apt-key add -