1。style：

mapbox://styles/mapbox/streets-v10

        mapbox://styles/mapbox/outdoors-v10

        mapbox://styles/mapbox/light-v9

        mapbox://styles/mapbox/dark-v9

        mapbox://styles/mapbox/satellite-v9

        mapbox://styles/mapbox/satellite-streets-v10

        mapbox://styles/mapbox/navigation-preview-day-v2

        mapbox://styles/mapbox/navigation-preview-night-v2

        mapbox://styles/mapbox/navigation-guidance-day-v2

        mapbox://styles/mapbox/navigation-guidance-night-v2