版本：
文件：
- https://cdn.bootcdn.net/ajax/libs/mapbox-gl-directions/4.3.1/mapbox-gl-directions.css
- https://cdn.bootcdn.net/ajax/libs/mapbox-gl-directions/4.3.1/mapbox-gl-directions.js
- https://cdn.bootcdn.net/ajax/libs/mapbox-gl-directions/4.3.1/mapbox-gl-directions.min.css
- https://cdn.bootcdn.net/ajax/libs/mapbox-gl-directions/4.3.1/mapbox-gl-directions.min.js