示例
<!DOCTYPE html>
<html>
<head>
<title>My Leaflet Map</title>
<link rel="stylesheet" href="//unpkg.com/leaflet@1.0.2/dist/leaflet.css" />
<style type="text/css">
#map {
height: 500px;
}
</style>
</head>
<body>
<div id="map"></div>
<script xx_src="//unpkg.com/leaflet@1.0.2/dist/leaflet.js"></script>
<script>
var map = L.map('map').setView([51.505, -0.09], 13);
L.tileLayer('http://{s}.tile.osm.org/{z}/{x}/{y}.png', {
attribution: '© <a href="http://osm.org/copyright">OpenStreetMap</a> contributors'
}).addTo(map);
L.marker([51.5, -0.09]).addTo(map)
.bindPopup('A pretty CSS3 popup.<br> Easily customizable.')
.openPopup();
</script>
</body>
</html>
