ros常用命令：

1.環境變量刷新

source devel/setup.bash

2.ROS_INFO的信息在終端顯示為亂碼或者問號，則在main函數中加入：

setlocale(LC_ALL, "");

3.刷新bashrc文件

source ~/.bashrc

PX4

roslaunch px4 mavros_posix_sitl.launch

區分：make px4_sitl gazebo_iris 和 roslaunch px4 mavros_posix_sitl.launch區別

https://dgzc.ganahe.top/ganahe/2021/wrjzzdhogfzhjxds.html

https://www.jianshu.com/p/31c95d9a5f97