import { AMapScene, LoadImage, PointLayer } from '@antv/l7-react'; import * as React from 'react'; import ReactDOM from 'react-dom'; const World = React.memo(function Map() { const [data, setData] = React.useState(); React.useEffect(() => { const fetchData = async () => { const response = await fetch( 'https://gw.alipayobjects.com/os/basement_prod/893d1d5f-11d9-45f3-8322-ee9140d288ae.json', ); const data = await response.json(); setData(data); }; fetchData(); }, []); return ( {data && ( )} ); }); ReactDOM.render(, document.getElementById('map'));