构建ros2的节点工程，并创建python的ros2的包的方法过程（推荐）

1，进入环境
cd ~/ros2_ws_simulink/src
2，创建包
ros2 pkg create keyboard_pro --build-type ament_python --dependencies rclpy joy_stick_msg
3，创建代码：

# ~/ros2_ws_simulink/src/keyboard_pro/keyboard_pro/keyboard_publisher_simple.py
#!/usr/bin/env python3
import rclpy
from rclpy.node import Node
from joy_stick_msg.msg import JoyStickMsg
import sys
import select
import termios
import tty

class SimpleKeyboardPublisher(Node):
    def __init__(self):
        super().__init__('simple_keyboard_publisher')
        
        # 创建发布者
        self.publisher_ = self.create_publisher(
            JoyStickMsg, 
            '/joystick_topic', 
            10
        )
        

4，设置配置setup.py

# ~/ros2_ws_simulink/src/keyboard_pro/setup.py
from setuptoo