#include<iostream>
#include"ros/ros.h"
#include"nav_msgs/Odometry.h"
using namespace std;
void timer_callBack(const ros::TimerEvent& event)
{
ROS_INFO("start");
}
int main(int argc,char **argv)
{
ros::init(argc,argv,"times");
ros::NodeHandle nh;
ros::Timer timer = nh.createTimer(ros::Duration(2),timer_callBack);
ros::spin();
return 0;
}
注意在launch文件中配置时:在node节点中添加output=“screen”