invalid use of non-static member function:ROS 初始化subscriber时问题的解决
MoveBase_cmd_vel_sub=node_handle.subscribe("/movebase_cmd_vel",60,DHRobotBase::moveBase_cmd_vel);//订阅topic在使用这句话时出现这个问题:error:invaliduseofnon-staticmemberfunction"/movebase_cmd_vel",60,DHRobotBase::mo