leaflet 基本案例-图层控件：基础图层+业务图层

<!DOCTYPE html>
<html>
<head>

    <title>Layers Control Tutorial - Leaflet</title>

    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0">

    <link rel="shortcut icon" type="image/x-icon" href="docs/images/favicon.ico" />

    <link rel="stylesheet" href="https://unpkg.com/[email protected]/dist/leaflet.css" integrity="sha512-xwE/Az9zrjBIphAcBb3F6JVqxf46+CDLwfLMHloNu6KEQCAWi6HcDUbeOfBIptF7tcCzusKFjFw2yuvEpDL9wQ==" crossorigin=""/>
    <script src="https://unpkg.com/[email protected]/dist/leaflet.js" integrity="sha512-gZwIG9x3wUXg2hdXF6+rVkLF/0Vi9U8D2Ntg4Ga5I5BZpVkVxlJWbSQtXPSiUTtC0TjtGOmxa1AJPuV0CPthew==" crossorigin=""></script>


    <style>
        html, body {
            height: 100%;
            margin: 0;
        }
        #map {
            width: 1000px;
            height: 700px;
        }
    </style>


</head>
<body>

<div id='map'></div>

<script>
    //地图marker数组
    var markers=[];

    var marker1 =L.marker([39.61, -105.02]).bindPopup('This is Littleton, CO.');
    var marker2 =L.marker([39.74, -104.99]).bindPopup('This is Denver, CO.');
    var marker3 =L.marker([39.73, -104.8]).bindPopup('This is Aurora, CO.');
    var marker4 =L.marker([39.77, -105.23]).bindPopup('This is Golden, CO.');

    markers.push(marker1);
    markers.push(marker2);
    markers.push(marker3);
    markers.push(marker4);

    //利用marker数组构建marker图层
    var citiesLayer = L.layerGroup(markers);

    //利用切片地图服务地址，创建图层
    var grayscaleLayer= L.tileLayer('http://map.geoq.cn/ArcGIS/rest/services/ChinaOnlineCommunity/MapServer/tile/{z}/{y}/{x}',
        {id: 'map11'});
    var streetsLayer  = L.tileLayer('http://map.geoq.cn/ArcGIS/rest/services/ChinaOnlineStreetPurplishBlue/MapServer/tile/{z}/{y}/{x}',
        {id: 'map12'});

    //1、基础地图
    var baseLayers = {
        "Grayscale": grayscaleLayer,
        "Streets": streetsLayer
    };

    //1、业务图层
    var overLayers = {
        "Cities": citiesLayer
    };

    var map = L.map('map', {
        minZoom: 5,
        maxZoom: 12,
        center: [39.73, -104.99],
        zoom: 10,

        layers: [grayscaleLayer, citiesLayer],//默认显示的图层
        fullscreenControl: false,//全屏控件，不显示
        zoomControl: false,//放大缩小控件，不显示
        attributionControl: false//右下角属性控件，不显示
    });

    //zoomDelta: 0.5,//点击+-按钮的放缩刻度尺度，默认值1
    //zoomSnap: 0.5//地图能放缩的zoom的最小刻度尺度，默认值1

  //map的图层控件 
 var layerControl=L.control.layers(baseLayers, overLayers);
 map.addControl(layerControl); 

//单个图层，也可以通过，map,addLayer()来添加

 </script> 

</body>

 </html>

leaflet 基本案例-图层控件：基础图层+业务图层

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