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【ROS学习-10】用C++编写一个简单的Publisher和Subscriber

1. 创建 Publisher Node   roscd beginner_tutorials    创建 src/talker.cpp 文件,内容如下(可从 https://raw.github.com/ros/ros_tutorials/kinetic-devel/roscpp_tutorials/talker/talker.cpp 获取源码):   #include "ros/ros.h"   #include "std_msgs/String.h"   #include <sstream>   int main(int argc, char **argv)   {     ros::init(argc, argv, "talker");     ros::NodeHandle n;     ros::Publisher chatter_pub = n.advertise<std_msgs::String>("chatter", 1000);     ros::Rate loop_rate(10);     int count = 0;     while(ros::ok())     {       std_msgs::String msg;       std::stringstream ss;       ss << "hello world " << count;       msg.data = ss.str();         ROS...