// 创建一个 Leaflet 标记群组
var markerGroup = L.markerClusterGroup();
// 往标记群组中添加标记
var marker1 = L.marker([51.5, -0.09], { title: "Marker 1" });
markerGroup.addLayer(marker1);
var marker2 = L.marker([51.5, -0.07], { title: "Marker 2" });
markerGroup.addLayer(marker2);
var marker3 = L.marker([51.5, -0.05], { title: "Marker 3" });
markerGroup.addLayer(marker3);
// 遍历标记群组中的每个标记,并更新它们的标题
markerGroup.eachLayer(function (marker) {
marker.bindTooltip("New Title");
});
// 将标记群组添加到地图中
markerGroup.addTo(map);