获取地图中心点/级别

map.getCenter()获取地图中心点；map.getZoom获取地图缩放级别

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          <!doctype html>
<html>

<head>
  <meta charset="utf-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="initial-scale=1.0, user-scalable=no, width=device-width">
  <link rel="stylesheet" href="https://a.amap.com/jsapi_demos/static/demo-center/css/demo-center.css" />
  <style>
    html,
    body,
    #container {
      width: 100%;
      height: 100%;
    }

    #map-zoom, #map-center {
      color: #0288d1;
    }
  </style>
  <title>地图级别与中心点</title>
</head>

<body>
  <div id="container"></div>
  <div class="info">
    <h4>获取地图级别与中心点坐标</h4>
    <p>当前级别：<span id="map-zoom">11</span></p>
    <p>当前中心点：<span id="map-center">121.498586,31.239637</span></p>
  </div>
  <script src="https://webapi.amap.com/maps?v=1.4.15&key=您申请的key值"></script>
  <script src="https://a.amap.com/jsapi_demos/static/demo-center/js/demoutils.js"></script>
  <script>
    //初始化地图
    var map = new AMap.Map('container', {
      resizeEnable: true, //是否监控地图容器尺寸变化
      zoom: 11, //初始地图级别
      center: [121.498586, 31.239637], //初始地图中心点
    });

    //显示地图层级与中心点信息
    function logMapinfo(){
      var zoom = map.getZoom(); //获取当前地图级别
      var center = map.getCenter(); //获取当前地图中心位置

      document.querySelector("#map-zoom").innerText = zoom;
      document.querySelector("#map-center").innerText = center.toString();
    };

    //绑定地图移动与缩放事件
    map.on('moveend', logMapinfo);
    map.on('zoomend', logMapinfo);
  </script>
</body>

</html>
        

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