版本：3.4.9
- https://cdn.bootcdn.net/ajax/libs/cytoscape/3.4.9/cytoscape.esm.js
- https://cdn.bootcdn.net/ajax/libs/cytoscape/3.4.9/cytoscape.min.js
- https://cdn.bootcdn.net/ajax/libs/cytoscape/3.4.9/cytoscape.umd.js
Graph theory (a.k.a. network) library for analysis and visualisation