qt5 for ros2
https://www.qt.io/download-qt-installer-oss
sudo apt install libxcb-cursor-dev && ./qt-online-installer-linux-x64-4.8.1.run --mirror http://mirrors.ustc.edu.cn/qtproject/ for install qtcreator
https://github.com/ros-industrial/ros_qtc_plugin/releases for install ROSProjectManager
then put this zip to /path/Qt/tools/QtCreator/lib/qtcreator/plugins/ && open qtcreator ==》帮助 ==》关于插件 》》install Plugin ==> 浏览刚才的zip包添加即可