leaflet移除除底图外的所有图层
//移除除底图外的所有图层
map.eachLayer(function (layer) {
if (!layer._container || ('' + jQuery(layer._container).attr('class')).replace(/\s/g, '') != 'leaflet-layer') {
layer.remove();
}
});
转载自：https://blog.csdn.net/STRIVEYe/article/details/88309084
