<script type="text/javascript" src=http://www.mamicode.com/"http://api.map.baidu.com/api?v=2.0&ak=vgQfNjTQDlCar24CrTIdWcwY"></script><div id="allmap" style="height: 600px"></div><br/><span id="lng"></span><span id="lat"></span><script  type="text/javascript"><script  type="text/javascript">    $(function() {        //==========隔1500秒调整视野到"上海"===========        //GetMapByChina();        //==========根据经纬度加载地图===============        //var pointX = "31.035434";        //var pointY = "121.248119";        //var address = "松江国际生态商务区光星路1688号(松江万达广场旁)";        //var buildName = "新江湾首府";        //GetMapByPoint(pointX, pointY, address, buildName);                //===========根据项目地址获取地图信息         //GetMapByAddress("长宁区延安西路1160号","上海","首信银都");                //===========可拖拽地图显示坐标======        var pointX = "31.035434";        var pointY = "121.248119";        setLocation(pointX, pointY);    });    //==========隔1500秒调整视野到"上海"===========    var map = new window.BMap.Map("allmap");    function GetMapByChina() {        //百度地图API功能                map.centerAndZoom(new window.BMap.Point(116.403765, 39.914850), 7);        map.enableScrollWheelZoom();        setTimeout(function() {            getBoundary();        }, 1500);        function getBoundary() {            var bdary = new window.BMap.Boundary();            bdary.get("上海", function(rs) { //获取行政区域                map.clearOverlays(); //清除地图覆盖物                       var count = rs.boundaries.length; //行政区域的点有多少个                for (var i = 0; i < count; i++) {                    var ply = new window.BMap.Polygon(rs.boundaries[i], { strokeWeight: 2, strokeColor: "#ff0000" }); //建立多边形覆盖物                    map.addOverlay(ply); //添加覆盖物                    map.setViewport(ply.getPath());                    alert(map.point.layerX());                }            });        }    }    //============根据经纬度加载地图==============    function GetMapByPoint(pointX, pointY, address, buildName) {        //lat 经度 lng 纬度 address 项目地址 name  项目名称        var point = new window.BMap.Point(pointY, pointX, address, buildName);        SetContent(point, address, name);    }    //根据项目地址获取地图信息     function GetMapByAddress(address, city, name) {        // 创建地址解析器实例        var myGeo = new BMap.Geocoder();        // 将地址解析结果显示在地图上,并调整地图视野        myGeo.getPoint(address, function(point) {            if (point) {                SetContent(point, address, name);            }        }, city);    }        function SetContent(point, address, name) {        var map = new BMap.Map("allmap");        var marker = new BMap.Marker(point, { enableDragging: true, }); //enableDragging 标注物可拖拽        map.addOverlay(marker);        //经度         alert("经度:" + point.lat);        //纬度        alert("纬度:" + point.lng);        var opts = {            width: 200,     // 信息窗口宽度            height: 60,     // 信息窗口高度            title: name, // 信息窗口标题            enableMessage: false,//设置允许信息窗发送短息            //message: "您好，请点击下面的链接查看地图"        };        var infoWindow = new BMap.InfoWindow("地址：" + address, opts); // 创建信息窗口对象        map.openInfoWindow(infoWindow, point);        map.centerAndZoom(point, 15);        SetMarkerEvent(marker, infoWindow); //添加标注拖拽事件        map.enableScrollWheelZoom(true); //启动地图拖拽功能        map.addControl(new BMap.NavigationControl({ anchor: BMAP_ANCHOR_TOP_RIGHT, })); //右上角添加添加默认缩放平移控件    }    //经纬度显示，拖拽后显示经纬度    function setLocation(x, y) {//参数：经纬度        map.clearOverlays();        var point = new window.BMap.Point(x, y);        map.centerAndZoom(point, 7);        var marker = new window.BMap.Marker(point);  // 创建标注        map.addOverlay(marker);              // 将标注添加到地图中        marker.enableDragging();    //可拖拽        $("#lng").val(point.lng);        $("#lat").val(point.lat);        map.enableScrollWheelZoom();        marker.addEventListener(‘dragend‘, getlngAndlat);        //拖拽时调用的方法        function getlngAndlat(e) {            if (e.point.lng != null) {                $("#lng").val(e.point.lng);                $("#lat").val(e.point.lat);                alert("拖拽后的坐标经度:" + e.point.lng);                alert("拖拽后的坐标纬度:" + e.point.lat);            }        }        map.addOverlay(marker);    }</script></script>