sub

[0-0hhj]

include "ros/ros.h"

include "std_msgs/String.h"

void doMsg(const std_msgs::String::ConstPtr &msg){ std::string original_msg = msg->data; std_msgs::String new_msg; std::transform(original_msg.begin(),original_msg.end(),original_msg.begin(),::toupper); new_msg.data = original_msg; ROS_INFO("%s",new_msg.data.c_str()); ros::NodeHandle nh2; ros::Publisher pub = nh2.advertise< std_msgs::String>("output_topic", 1000); pub.publish(new_msg);

}

int main(int argc, char *argv[]) { ros::init(argc,argv,"string_converter"); ros::NodeHandle nh; ros::Subscriber sub = nh.subscribe("original_topic",10,doMsg); ros::spin(); return 0; }

[JIAlonglong]

能把问题描述一下吗，方便大家解答

[0-0hhj]

没啥问题，发错了O__o...