import L from 'leaflet'
import 'leaflet/dist/leaflet.css'
L.Icon.Default.imagePath = '/'
L.Icon.Default.mergeOptions({
iconRetinaUrl: require('leaflet/dist/images/marker-icon-2x.png'),
iconUrl: require('leaflet/dist/images/marker-icon.png'),
shadowUrl: require('leaflet/dist/images/marker-shadow.png')
})
最外层容器需要设置高度