Three good plug-ins have been discovered so far. If there are other add-ons in the future, the comment area can also be added:
CodeGlance
You can preview the program as a whole, in the upper right cornerRainbow Brackets
Rainbow brackets to enhance the readability of the programC/C++ Single File Execution plugin
Compile and run a single C++ file, but this plug-in can be replaced, see another article for details