版本：1.28.4
- https://cdn.bootcdn.net/ajax/libs/playcanvas/1.28.4/playcanvas-extras.js
- https://cdn.bootcdn.net/ajax/libs/playcanvas/1.28.4/playcanvas-extras.min.js
- https://cdn.bootcdn.net/ajax/libs/playcanvas/1.28.4/playcanvas.d.ts
- https://cdn.bootcdn.net/ajax/libs/playcanvas/1.28.4/playcanvas.dbg.js
- https://cdn.bootcdn.net/ajax/libs/playcanvas/1.28.4/playcanvas.dbg.min.js
- https://cdn.bootcdn.net/ajax/libs/playcanvas/1.28.4/playcanvas.js
- https://cdn.bootcdn.net/ajax/libs/playcanvas/1.28.4/playcanvas.min.js
- https://cdn.bootcdn.net/ajax/libs/playcanvas/1.28.4/playcanvas.prf.js
- https://cdn.bootcdn.net/ajax/libs/playcanvas/1.28.4/playcanvas.prf.min.js