leaflet清除图层

1.单个清除

 let polygon = L.polygon(res, { color: 'rgb(51, 136, 255)', fillColor: 'rgb(51, 136, 255)', weight: 1 }).addTo(map);
  map.removeLayer(polygon );

2.批量清除

 map.on("pm:create", e => {
        suoyouArr.push(e);  // 在添加图层时,将其添加在数组
  })
    
// 循环删除
 suoyouArr.map(res => {
        map.removeLayer(res.layer);
  })