我是新手leaflet.js
。谁能帮我调试以下代码?我正在尝试在屏幕上显示地图,但 Google Chrome 上只显示放大和缩小按钮,并且地图屏幕为空。
<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet/v0.7.7/leaflet.css" />
<style>
#mapid { height: 180px; }
</style>
</head>
<body>
<div id="mapid"></div>
<script src="http://cdn.leafletjs.com/leaflet/v0.7.7/leaflet.js"></script>
<script>
var mymap = L.map('mapid').setView([51.505, -0.09], 13);
</script>
</body>
</html>