graphaviz的一些参考

this is the best tutorial: https://www.worthe-it.co.za/programming/2017/09/19/quick-introduction-to-graphviz.html#:~:text=Ranks and Subgraphs,placed further to the right.

https://graphviz.readthedocs.io/en/stable/examples.html

https://graphs.grevian.org/example

https://pygraphviz.github.io/documentation/latest/tutorial.html

https://graphviz.org/doc/info/shapes.html

https://graphviz.org/doc/info/attrs.html

https://pygraphviz.github.io/documentation/pygraphviz-1.3.1/tutorial.html

https://stackoverflow.com/questions/41942109/plotting-the-digraph-with-graphviz-in-python-from-dot-file

https://riptutorial.com/python/example/29355/pygraphviz