生成百度地图 | 易学教程

http://api.map.baidu.com/lbsapi/creatmap/网址

一步步

注册百度帐号获取密钥即可

<script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=LNr5D7cir4efHvWX67rpknIe"></script>
    <div style="width:99%; margin:auto; margin-bottom:40px; height:400px;border:#fff solid 5px;font-size:12px;" id="map"></div>

<script type="text/javascript">
    //创建和初始化地图函数：
    function initMap(){
      createMap();//创建地图
      setMapEvent();//设置地图事件
      addMapControl();//向地图添加控件
      addMapOverlay();//向地图添加覆盖物
    }
    function createMap(){
      map = new BMap.Map("map");
      map.centerAndZoom(new BMap.Point(117.148353,36.671086),16);
    }
    function setMapEvent(){
      map.enableScrollWheelZoom();
      map.enableKeyboard();
      map.enableDragging();
      map.enableDoubleClickZoom()
    }
    function addClickHandler(target,window){
      target.addEventListener("click",function(){
        target.openInfoWindow(window);
      });
    }
    function addMapOverlay(){
      var markers = [
        {content:"我的备注",title:"我的标记",imageOffset: {width:0,height:3},position:{lat:36.668814,lng:117.14776}},
        {content:"我的备注",title:"我的标记",imageOffset: {width:0,height:3},position:{lat:36.675182,lng:117.142909}},
        {content:"我的备注",title:"我的标记",imageOffset: {width:0,height:3},position:{lat:36.665182,lng:117.142919}}
      ];
         var linetmp=null;
             var lastmarker=null;
                 var fist=true;
      for(var index = 0; index < markers.length; index++ ){
        var point = new BMap.Point(markers[index].position.lng,markers[index].position.lat);
        var marker = new BMap.Marker(point,{icon:new BMap.Icon("images/icon.png",new BMap.Size(20,25),{
          imageOffset: new BMap.Size(markers[index].imageOffset.width,markers[index].imageOffset.height)
        })});
        var label = new BMap.Label(markers[index].title,{offset: new BMap.Size(25,5)});
        var opts = {
          width: 200,
          title: markers[index].title,
          enableMessage: false
        };
        var infoWindow = new BMap.InfoWindow(markers[index].content,opts);
        marker.setLabel(label);
        addClickHandler(marker,infoWindow);
        map.addOverlay(marker);

        ////////////添加路线部分/////////////////
           if(index>0){
               var polyline = new BMap.Polyline([linetmp,point],{strokeColor:"blue", strokeWeight:2, strokeOpacity:0.5});   //创建折线
               map.addOverlay(polyline);   //增加折线
               polyline.enableEditing();
               }

           linetmp=point;
           lastmarker=marker;
               if(fist){
               last_point=linetmp;
           fist=false;
           //alert(linetmp);
           }
           ///////////////////////////////////////////////
      };
    }
    //向地图添加控件
    function addMapControl(){
      var scaleControl = new BMap.ScaleControl({anchor:BMAP_ANCHOR_BOTTOM_LEFT});
      scaleControl.setUnit(BMAP_UNIT_IMPERIAL);
      map.addControl(scaleControl);
      var navControl = new BMap.NavigationControl({anchor:BMAP_ANCHOR_TOP_LEFT,type:BMAP_NAVIGATION_CONTROL_LARGE});
      map.addControl(navControl);
      var overviewControl = new BMap.OverviewMapControl({anchor:BMAP_ANCHOR_BOTTOM_RIGHT,isOpen:true});
      map.addControl(overviewControl);
    }
    var map;
      initMap();
</script>

来源：https://www.cnblogs.com/zhouyx/p/4387681.html

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地图api