OpenLayers 地图全屏显示功能实现指南

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
  <title></title>
  <link href="../css/ol.css" rel="external nofollow" rel="stylesheet" />
  <script src="../lib/ol/ol.js"></script>
  <script type="text/javascript">
    window.onload = function () {
      //实例化全屏显示控件
      var fullScreenControl = new ol.control.FullScreen();
 
      //实例化地图
      var map = new ol.Map({
        target: 'map',
        layers: [
          new ol.layer.Tile({
            source:new ol.source.OSM()
          })
        ],
        view: new ol.View({
          center: [12900000, 4900000],
          zoom:8
        })
      });
 
      //将全屏显示控件加载到map中
      map.addControl(fullScreenControl);
    };
  </script>
</head>
<body>
  <div id="map"></div>
</body>
</html>