创建workspace与package

创建workspace与package的步骤：

$ mkdir -p ~/catkin_ws/src

$ cd ~/catkin_ws/src

$ catkin_init_workspace

$ cd ~/catkin_ws

$ catkin_make

$ echo    "source    ~/catkin_ws/devel/setup.bash"    >>    ~/.bashrc    
$ source    ~/.bashrc

$ catkin_create_pkg  [package_name]   [dependency1]   [dependency2]