ubuntu20如何安装ros2

您可以按照以下步骤安装ROS2：

1. 添加ROS2软件包仓库

sudo apt update && sudo apt install curl gnupg2 lsb-release

curl -s https://raw.githubusercontent.com/ros/rosdistro/master/ros.asc | sudo apt-key add -

sudo sh -c 'echo "deb [arch=$(dpkg --print-architecture)] http://packages.ros.org/ros2/ubuntu $(lsb_release -cs) main" > /etc/apt/sources.list.d/ros2-latest.list'

2. 安装ROS2

sudo apt update

sudo apt install ros-foxy-desktop

3. 设置ROS2环境变量

source /opt/ros/foxy/setup.bash

4. 测试ROS2

ros2 run demo_nodes_cpp talker

ros2 run demo_nodes_cpp listener

希望这可以帮助您安装ROS2。