「深度学习福利」大神带你进阶工程师，立即查看>>>
tutorial1
1.查看ros有关环境变量 $ printenv | grep ROS
2.Create a ROS Workspace $ mkdir -p ~/catkin_ws/src $ cd ~/catkin_ws/ $ catkin_make
添加当前workspace变量 $ source devel/setup.bash
查看确认变量添加成功 $ echo $ROS_PACKAGE_PATH /home/youruser/catkin_ws/src:/opt/ros/kinetic/share
tutorial2
ROS filesystem concepts
1.查找package信息 $ rospack find [package_name]
2. roscd,rosls
tutorial3
create a new package
1.最简单的包结构必须包含： my_package/ CMakeLists.txt package.xml
2.创建包（src目录下） # catkin_create_pkg <package_name> [depend1] [depend2] [depend3]
$ cd ~/catkin_ws/src
$ catkin_create_pkg beginner_tutorials std_msgs rospy roscpp
3.build（workspace目录） $ cd ~/catkin_ws $ catkin_make
添加当前变量（这一步必做，不然找不到新建的包） $ . ~/catkin_ws/devel/setup.bash
4.查看包依赖
直接依赖： $rospack depends1 beginner_tutorials
递归依赖：depends1 替换成depends
5.修改package.xml和CMakeLists.txt