ROS2/C++ 编写launch文件(2)——带参数

launch文件编写

在上一篇的基础上增加了parameters的定义，这里定义参数的名为：param，值为int的10；

import os
import ament_index_python.packages

from launch import LaunchDescription
from launch_ros.actions import ComposableNodeContainer
from launch_ros.actions import Node
from launch_ros.descriptions import ComposableNode
import yaml

def generate_launch_description():
    return LaunchDescription([
        Node(
            package="cpp_pubsub",
            node_executable="talker",
            name="talker",
	        output="screen",
            parameters=[
                {
   
   "param":<