ROS_tf使用

//安装
sudo apt-get install ros-noetic-turtle-tf

roslaunch turtle_tf turtle_tf_demo.launch
//python报错，只有一个乌龟
//解决
cd /usr/bin
sudo cp python3 python


rosru tf view_frames
//报错 line89
//解决
sudo vim /opt/ros/noetic/lib/tf/view_frames

m=r.search(vstr.decode('utf-8'))
//注意缩进和拼写