Part2.3.3 参数通信实际操作 C++实现

用两套API来实现小乌龟显示背景的更换

#include "ros/ros.h"
/*更换小乌龟的显示背景*/
/*
  ding@ding-TravelMate-P259-G2-MG:~$ rosparam list
/rosdistro
/roslaunch/uris/host_ding_travelmate_p259_g2_mg__44777
/rosversion
/run_id
/turtlesim/background_b
/turtlesim/background_g
/turtlesim/background_r

*/
int main (int argc,char *argv[])
{
  ros::init(argc,argv,"turtle_background");
  //ros::NodeHandle nh("turtlesim");

  /*用句柄来实现参数的设置，注意nh的命名空间*/
  /*nh.setParam("background_b",0);
   nh.setParam("background_g",0);
     nh.setParam("background_r",0);
     */
 /*用ros::param::set("", )来设置参数*/
   ros::param::set("/turtlesim/background_b",1);
   ros::param::set("/turtlesim/background_g",1); 
   ros::param::set("/turtlesim/background_r",1);
    return 0;
}