zoukankan html css js c++ java

百度地图之多点步行路径连线问题

原文：http://www.cnblogs.com/wujy/p/3897501.html#undefined

一:通过结合下面两个百度实例来实现我们所要求的功能;

1:两点间步行实例:http://developer.baidu.com/map/jsdemo.htm#i6_1

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<style type="text/css">
body, html,#allmap { 100%;height: 100%;overflow: hidden;margin:0;}
</style>
<script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=您的密钥"></script>
<title>步行导航检索</title>
</head>
<body>
<div id="allmap"></div>
</body>
</html>
<script type="text/javascript">

var map = new BMap.Map("allmap");
map.centerAndZoom(new BMap.Point(116.404, 39.915), 11);
var walking = new BMap.WalkingRoute(map, {renderOptions:{map: map, autoViewport: true}});
walking.search("天坛公园", "故宫");
</script>

2:折线实例:http://developer.baidu.com/map/jsdemo.htm#c1_5

<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<style type="text/css">
body, html,#allmap { 100%;height: 100%;overflow: hidden;margin:0;}
</style>
<script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=您的密钥"></script>
<title>折线</title>
</head>
<body>
<div id="allmap"></div>
</body>
</html>
<script type="text/javascript">

var map = new BMap.Map("allmap");
var point = new BMap.Point(116.404, 39.915);
map.centerAndZoom(point, 15);
var polyline = new BMap.Polyline([
  new BMap.Point(116.399, 39.910),
  new BMap.Point(116.405, 39.920),
  new BMap.Point(116.425, 39.900)
], {strokeColor:"blue", strokeWeight:6, strokeOpacity:0.5});
map.addOverlay(polyline);
</script>

二:多点步行路径连线实例（完整的代码如下，都有相应说明,实例定义三个点）

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
    <style type="text/css">
        body, html
        {
             100%;
            height: 100%;
            overflow: hidden;
            margin: 0;
        }
        #allmap
        {
            height: 50%;
             40%;
            float: left;
            border-right: 2px solid #bcbcbc;
        }
        #r-result
        {
            height: 100%;
             55%;
            float: left;
        }
    </style>
    <script src="jquery-1.3.2.min.js" type="text/javascript"></script>
    <script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=nLpN5iKztxIWsPqgwsyrruUG"></script>
    <script type="text/javascript">

    </script>
</head>
<body>
    <input id="btn_show" type="button" value="button" />
    <div id="allmap">
    </div>
    <%--style="display:none"--%>
    <div id="r-result">
    </div>
</body>
</html>
<script type="text/javascript">
    //定义集合用来存放沿线的坐标值
    var chartData = [];
    //加载地图
    var map = new BMap.Map("allmap");
    map.centerAndZoom(new BMap.Point(118.10000, 24.46667), 11);
    var walking = new BMap.WalkingRoute(map, { renderOptions: { map: map, autoViewport: true} });
    var startpoint = new BMap.Point(118.112917, 24.435153);
    var endpoint = new BMap.Point(118.1086487, 24.439108);
    walking.search(startpoint, endpoint);
    //通过setSearchCompleteCallback回调事件可以把步行间的坐标信息获取
    walking.setSearchCompleteCallback(function (rs) {
        var pts = walking.getResults().getPlan(0).getRoute(0).getPath();
        for (var i = 0; i < pts.length; i++) {
            chartData.push(new BMap.Point(pts[i].lat, pts[i].lng));
        }
    });
    //另外两点的步行路线
    var walkings = new BMap.WalkingRoute(map, { renderOptions: { map: map, autoViewport: true} });
    var twoPoint = new BMap.Point(118.1286555, 24.4491888);
    walkings.search(endpoint, twoPoint);
    walkings.setSearchCompleteCallback(function (rs) {
        var pts = walkings.getResults().getPlan(0).getRoute(0).getPath();
        for (var i = 0; i < pts.length; i++) {
            chartData.push(new BMap.Point(pts[i].lat, pts[i].lng));
        }
    });
    //用来存放途经点的坐标
    var viaRouteData = [];
    viaRouteData.push(endpoint);

    $(function () {
        $("#btn_show").click(function () {
            //这边故意让它晚一秒运行，因为上面获取坐标信息是比较慢又是异步
            setTimeout(ShowRoute, 1000);
        });
    });

    function ShowRoute() {
        var firstPoint;
        var endPoint;
        var newChartData = [];
        //对坐标点重新定义
        $.each(chartData, function (item, value) {
            newChartData.push(new BMap.Point(value.lat, value.lng));
        });
        //为了获得起点及终点的坐标值,方便对它进行文字处理
        firstPoint = newChartData[0];
        endPoint = newChartData[newChartData.length - 1];
        //加载地图
        var maps = new BMap.Map("r-result");
        maps.centerAndZoom(new BMap.Point(118.10000, 24.46667), 15);
        //把步行线路的坐标集合转化成折线
        var polyline = new BMap.Polyline(newChartData, { strokeColor: "red", strokeWeight: 6, strokeOpacity: 0.5 });
        maps.addOverlay(polyline);

        //对起点、终点、途经点做一个简单的处理，泡泡跟文字提示
        var m1 = new BMap.Marker(firstPoint);
        var m2 = new BMap.Marker(endPoint);
        maps.addOverlay(m1);
        maps.addOverlay(m2);
        var lab1 = new BMap.Label("起点", { position: firstPoint });
        var lab2 = new BMap.Label("终点", { position: endPoint });
        maps.addOverlay(lab1);
        maps.addOverlay(lab2);

        $.each(viaRouteData, function (item, value) {
            var m = new BMap.Marker(value);
            maps.addOverlay(m);
            var lab = new BMap.Label("途经点", { position: value });
            maps.addOverlay(lab);
        });
    }
</script>

左边是使用步行接口显示的三点连线地图,两点间都会标识起点跟终点,所以要是有多点地图上就会出现很为起点、终点的标志；右边这张是通过修改以后的地图；

编辑修改于2014-08-12

上面实例中会存在一个问题,因为如果我们存在有多点情况下会进行for循环把每两个点的路线画出来,并得到这种路线的坐标集合;不过因为获取坐标集合百度地图API是通过回调函数实现;这边不得不面对一个FOR循环里包含回调方法,导致获得坐标集合顺序会出现问题;会出现如下图那样,有些点之间错乱,图在多出一些直接;

结合上面出现的问题对相应代码进行调整:

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
    <title></title>
    <script src="Scripts/jquery-1.8.2.js"></script>
    <script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=nLpN5iKztxIWsPqgwsyrruUG"></script>
    <script type="text/javascript">
        $(function ()
        {
            $("#btn_Show").click(function () {
                showMap();
            });
        });

        var chartData = [];
        function showMap() {
            var startSce = $("#<%=tb_Start.ClientID%>").val();
            var EndSce = $("#<%=tb_End.ClientID%>").val();
            var viaArray = $("#<%=tb_via.ClientID%>").val();

            $.ajax({
                type: "get",
                data: { startSce: startSce, viaArray: viaArray, EndSce: EndSce },
                datatype: "json",
                url: "Handler1.ashx",
                async: false,
                success: function (userInfo) {
                    var abc = $.parseJSON(userInfo);
                    $.each(abc, function (item, value) {
                        chartData.push(new BMap.Point(value.lan, value.yan));
                    })
                    for (var i = 0; i < chartData.length-1; i++) {
                        var startPoint = chartData[i];
                        var endPoint = chartData[i + 1];
                        showPath(startPoint, endPoint);
                    }

                    $.each(abc, function (item, value) {
                        var firstPoint = new BMap.Point(value.lan, value.yan);
                        var m1 = new BMap.Marker(firstPoint);
                        maps.addOverlay(m1);
                        var lab1 = new BMap.Label(item+1, { position: firstPoint });
                        maps.addOverlay(lab1);
                    });

                }
            });
        }

        function showPath(startPoint, EndPoint)
        {
            var walking = new BMap.WalkingRoute(map, { renderOptions: { map: map, autoViewport: true } });
            walking.search(startPoint, EndPoint);

            walking.setSearchCompleteCallback(function (rs) {
                var abc = rs;
                var pts = walking.getResults().getPlan(0).getRoute(0).getPath();
                maps.addOverlay(new BMap.Polyline(pts, { strokeColor: "green", strokeWeight: 2, strokeOpacity: 1 }));
            });
        }
    </script>
</head>
<body>
   <form id="form1" runat="server">
    起点:<asp:TextBox ID="tb_Start" runat="server"></asp:TextBox>
    途经点(以"|"进行分隔):<asp:TextBox ID="tb_via" runat="server" Width="295px"></asp:TextBox>
    终点:<asp:TextBox ID="tb_End" runat="server"></asp:TextBox>
    <asp:Button ID="Button1" runat="server" Text="确认" OnClick="Button1_Click" /><br /><br />
    结果显示:
    <asp:Label ID="lb_message" runat="server"></asp:Label>
    </form>
    <br />
    <br />
    <input id="btn_Show" type="button" value="显示步行路线" />
    步行路径图:
    <div id="allmap" style=" height:900px; 1000px">
        
    </div>
    <br />
    <br />
    
    修改后的路径图:
    <div id="r-result" style=" height:500px; 900px">
    </div>
</body>
</html>

<script type="text/javascript">

    var map = new BMap.Map("allmap");
    map.centerAndZoom(new BMap.Point(118.075367, 24.44583), 15);
    map.addControl(new BMap.ScaleControl());
    map.addControl(new BMap.NavigationControl());


    var maps = new BMap.Map("r-result");
    maps.centerAndZoom(new BMap.Point(118.075367, 24.44583), 15);
    maps.addControl(new BMap.ScaleControl());
    maps.addControl(new BMap.NavigationControl());
</script>

主要是这里要注意(在回调过程中直接把直线画出来,不用再去获取两点间的坐标集合再去画线):

var pts = walking.getResults().getPlan(0).getRoute(0).getPath();
maps.addOverlay(new BMap.Polyline(pts, { strokeColor: "green", strokeWeight: 2, strokeOpacity: 1 }));

效果图如下：

上面修改后的图片可以对文字跟气泡进行再处理效果如下：

主要修改JS代码如下：

                    $.each(abc, function (item, value) {
                        var firstPoint = new BMap.Point(value.lan, value.yan);
                        //var startIcon = new BMap.Icon("ic_map_location.png", new BMap.Size(45, 45));
                        //var m1 = new BMap.Marker(firstPoint, { icon: startIcon, offset: new BMap.Size(-8, -15) });
                        var m1 = new BMap.Marker(firstPoint);
                        maps.addOverlay(m1);
                        var lab1 = new BMap.Label(item + 1, { position: firstPoint, offset: new BMap.Size(-10, -25) });
                        lab1.setStyle({
                            color: "#fff",
                            fontSize: "16px",
                            backgroundColor: "0.05",
                            border: "0",
                            fontWeight: "bold"
                        });
                        maps.addOverlay(lab1);
                    });

编辑修改于2014-08-18

针对上面第二种是没有把线路坐标集合保存到数据库中,这样会出现每次页面加载都去百度那边进行获得坐标集合,针对这种情况进行修改,虽然FOR回调函数会出现错乱的问题,但这边可以加个标识让它显示出每一段集合是所属顺序,然后再进行合并出正确集合点;

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
    <title></title>
    <script src="Scripts/jquery-1.8.2.js"></script>
    <script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=nLpN5iKztxIWsPqgwsyrruUG"></script>
    <script type="text/javascript">
        $(function () {
            $("#btn_Show").click(function () {
                showMap();
            });
        });

        var chartData = [];
        function showMap() {
            var startSce = $("#<%=tb_Start.ClientID%>").val();
            var EndSce = $("#<%=tb_End.ClientID%>").val();
            var viaArray = $("#<%=tb_via.ClientID%>").val();

            $.ajax({
                type: "get",
                data: { startSce: startSce, viaArray: encodeURI(viaArray), EndSce: EndSce },
                datatype: "json",
                url: "Handler1.ashx",
                async: false,
                success: function (userInfo) {
                    var abc = $.parseJSON(userInfo);
                    $.each(abc, function (item, value) {
                        chartData.push(new BMap.Point(value.lan, value.yan));
                    })
                    for (var i = 0; i < chartData.length - 1; i++) {
                        var startPoint = chartData[i];
                        var endPoint = chartData[i + 1];
                        showPath(startPoint, endPoint,i);
                    }
                }
            });
        }

        function showPath(startPoint, EndPoint,PointIndex) {
            var walking = new BMap.WalkingRoute(map, { renderOptions: { map: map, autoViewport: true } });
            walking.search(startPoint, EndPoint);
           
            walking.setSearchCompleteCallback(function (rs) {
                var pts = walking.getResults().getPlan(0).getRoute(0).getPath();
                var ptsJson = JSON.stringify(pts);
                $.ajax({
                    type: "post",
                    data: { SpointArray: ptsJson, PointIndex: PointIndex },
                    datatype: "json",
                    url: "Handler3.ashx",
                    async: false,
                    success: function (userInfo) {
                       
                    }
                });
            });
        }
    </script>

Handler3代码如下:

using Newtonsoft.Json;
namespace WebApplication1
{
    /// <summary>
    /// Handler3 的摘要说明
    /// </summary>
    public class Handler3 : IHttpHandler
    {

        public void ProcessRequest(HttpContext context)
        {
            string start = context.Request["SpointArray"];
            string PointIndex = context.Request["PointIndex"];
            List<ResultList> list = JsonConvert.DeserializeObject<List<ResultList>>(start);
            List<ResultList> newList = new List<ResultList>();
            foreach (var item in list)
            {
                bool result = newList.Where(o => o.lng == item.lng && o.lat == item.lat).Count()== 0;
                if (result)
                {
                    newList.Add(item);
                }
            }
            FileText.WriteString(start + "|" + PointIndex);
            string newResult = "";
            foreach (var item in newList)
            {
                //保存到数据库中,顺序标识也要保存起来PointIndex
                newResult += "new ResultList(){lng=" + item.lng + ",lat=" + item.lat + "},";
            }
            FileText.WriteString("修改后的结节:" + newResult);
            context.Response.Write("Hello World");
        }

        public bool IsReusable
        {
            get
            {
                return false;
            }
        }
    }

    public class ResultList
    {
        public double lng { get; set; }

        public double lat { get; set; }
    }
}

显示代码如下:

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<style type="text/css">
body, html,#allmap { 100%;height: 100%;overflow: hidden;margin:0;}
</style>
   
    <script type="text/javascript" src="Scripts/jquery-1.8.2.js"></script>
 <script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=nLpN5iKztxIWsPqgwsyrruUG"></script>
    <title></title>
</head>
<body>
   
<div id="allmap"></div>

</body>
</html>

<script type="text/javascript">

    $(function () {
        abc();
    });
    function abc() {
        var map = new BMap.Map("allmap");
        map.centerAndZoom(new BMap.Point(118.10000, 24.46667), 15);
        var chartData = [];
        $.ajax({
            type: "get",
            datatype: "json",
            url: "Handler4.ashx",
            async: false,
            success: function (userInfo) {
                var abc = $.parseJSON(userInfo);
                $.each(abc, function (item, value) {
                    chartData.push(new BMap.Point(value.lng, value.lat));
                })
                var polyline = new BMap.Polyline(chartData, { strokeColor: "blue", strokeWeight: 6, strokeOpacity: 0.5 });
                map.addOverlay(polyline);
            },
            error: function (error) {

            }
        });
    }
</script>

Handler4代码如下(要按标识顺序读出坐标点集合):

using Newtonsoft.Json;

namespace WebApplication1
{
    /// <summary>
    /// Handler4 的摘要说明
    /// </summary>
    public class Handler4 : IHttpHandler
    {

        public void ProcessRequest(HttpContext context)
        {
            List<ResultList> newList = new List<ResultList>()
            {
                //从数据库获得顺序集合
                new ResultList(){lng=118.07572,lat=24.456086},new ResultList(){lng=118.075747,lat=24.455756},new ResultList(){lng=118.075728,lat=24.455776},new ResultList(){lng=118.075698,lat=24.455776},new ResultList(){lng=118.075628,lat=24.455775},new ResultList(){lng=118.075419,lat=24.455712},new ResultList(){lng=118.075269,lat=24.455641},new ResultList(){lng=118.075388,lat=24.455422},new ResultList(){lng=118.075518,lat=24.455114},new ResultList(){lng=118.075528,lat=24.455094},new ResultList(){lng=118.075648,lat=24.454865},new ResultList(){lng=118.075768,lat=24.454656},new ResultList(){lng=118.075848,lat=24.454497},new ResultList(){lng=118.075858,lat=24.454427},new ResultList(){lng=118.075848,lat=24.454357},new ResultList(){lng=118.075818,lat=24.454226},new ResultList(){lng=118.075788,lat=24.454246},new ResultList(){lng=118.075768,lat=24.454256},new ResultList(){lng=118.075748,lat=24.454246},new ResultList(){lng=118.075728,lat=24.454225},new ResultList(){lng=118.075678,lat=24.454135},new ResultList(){lng=118.075579,lat=24.454054},new ResultList(){lng=118.075448,lat=24.453973},new ResultList(){lng=118.075438,lat=24.453943},new ResultList(){lng=118.075389,lat=24.453873},new ResultList(){lng=118.075319,lat=24.453791},new ResultList(){lng=118.075319,lat=24.453752},new ResultList(){lng=118.075289,lat=24.453632},new ResultList(){lng=118.07517,lat=24.453415},new ResultList(){lng=118.075022,lat=24.453437},new ResultList(){lng=118.075199,lat=24.45332},new ResultList(){lng=118.075179,lat=24.453221},new ResultList(){lng=118.075149,lat=24.45312},new ResultList(){lng=118.075149,lat=24.45288},new ResultList(){lng=118.075159,lat=24.45273},new ResultList(){lng=118.075199,lat=24.452601},new ResultList(){lng=118.075309,lat=24.452481},new ResultList(){lng=118.075419,lat=24.452373},new ResultList(){lng=118.075569,lat=24.452264},new ResultList(){lng=118.075608,lat=24.452235},new ResultList(){lng=118.075828,lat=24.452096},new ResultList(){lng=118.075908,lat=24.452068},new ResultList(){lng=118.076047,lat=24.452039},new ResultList(){lng=118.076157,lat=24.45204},new ResultList(){lng=118.076207,lat=24.451961},new ResultList(){lng=118.076287,lat=24.451821},new ResultList(){lng=118.076417,lat=24.451642},new ResultList(){lng=118.076487,lat=24.451543},new ResultList(){lng=118.076577,lat=24.451454},new ResultList(){lng=118.076607,lat=24.451425},new ResultList(){lng=118.076906,lat=24.451117},new ResultList(){lng=118.077026,lat=24.451008},new ResultList(){lng=118.077086,lat=24.450908},new ResultList(){lng=118.077205,lat=24.450769},new ResultList(){lng=118.077306,lat=24.450651},new ResultList(){lng=118.077496,lat=24.450472},new ResultList(){lng=118.077575,lat=24.450402},new ResultList(){lng=118.077615,lat=24.450353},new ResultList(){lng=118.077685,lat=24.450333},new ResultList(){lng=118.077695,lat=24.450263},new ResultList(){lng=118.077685,lat=24.450203},new ResultList(){lng=118.077665,lat=24.450104},new ResultList(){lng=118.077625,lat=24.450004},new ResultList(){lng=118.077615,lat=24.449953},new ResultList(){lng=118.077615,lat=24.449893},new ResultList(){lng=118.077636,lat=24.449843},new ResultList(){lng=118.077706,lat=24.449704},new ResultList(){lng=118.077716,lat=24.449654},new ResultList(){lng=118.077706,lat=24.449584},new ResultList(){lng=118.077623,lat=24.44948},new ResultList(){lng=118.077556,lat=24.449392},new ResultList(){lng=118.077456,lat=24.449292},new ResultList(){lng=118.077337,lat=24.449161},new ResultList(){lng=118.077306,lat=24.44912},new ResultList(){lng=118.077236,lat=24.44906},new ResultList(){lng=118.077057,lat=24.448918},new ResultList(){lng=118.077037,lat=24.448908},new ResultList(){lng=118.076977,lat=24.448868},new ResultList(){lng=118.076827,lat=24.448777},new ResultList(){lng=118.076698,lat=24.448685},new ResultList(){lng=118.076667,lat=24.448655},new ResultList(){lng=118.076558,lat=24.448614},new ResultList(){lng=118.076189,lat=24.448461},new 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            };

            string strSerializeJSON = JsonConvert.SerializeObject(newList);
            context.Response.Write(strSerializeJSON);
        }

        public bool IsReusable
        {
            get
            {
                return false;
            }
        }
    }
}

效果图:

另：给标记点增加点击事件并弹窗（注要用到的openInfoWindow，其中enableMessage:false是把窗口上的小手机关闭）；

$.each(abc, function (item, value) {
                        var firstPoint = new BMap.Point(value.lan, value.yan);
                        //var startIcon = new BMap.Icon("ic_map_location.png", new BMap.Size(45, 45));
                        //var m1 = new BMap.Marker(firstPoint, { icon: startIcon, offset: new BMap.Size(-8, -15) });
                        var m1 = new BMap.Marker(firstPoint);
                        var infoWindow = new BMap.InfoWindow("当前第"+(item+1)+"景点：厦门海底世界", { enableMessage: false,  30, height: 20 });
                        m1.addEventListener("click", function ()
                        {
                            this.openInfoWindow(infoWindow);
                        });
                        maps.addOverlay(m1);
                        var lab1 = new BMap.Label(item + 1, { position: firstPoint, offset: new BMap.Size(-10, -25) });
                        lab1.setStyle({
                            color: "#fff",
                            fontSize: "16px",
                            backgroundColor: "0.05",
                            border: "0",
                            fontWeight: "bold"
                        });
                        maps.addOverlay(lab1);
                    });

编辑修改于2014-08-27

针对弹出提示窗在For里面要使用JS的闭包功能，否则会出现所有提示全部变成最后一个，代码如下：

 for (var i = 0; i < result.length; i++) {

                var firstPoint = new BMap.Point(result[i].PointLng, result[i].PointLat);
                var m1 = new BMap.Marker(firstPoint);
                
                var winfowText = "[途经点]:" + result[i].PointLable;
                var labText = result[i].PointOrder;
                if (result[i].PointType == "0" || result[i].PointType == "1") {
                    if (result[0].PointLng == result[result.length - 1].PointLng && result[0].PointLat == result[result.length - 1].PointLat) {
                        labText = "并";
                        winfowText = "[起点|终点]:" + result[0].PointLable;
                    }
                    else {
                        if (result[i].PointType == "0") {
                            labText = "起";
                            winfowText = "[起点]:" + result[i].PointLable;
                        }
                        else {
                            labText = "终";
                            winfowText = "[终点]:" + result[i].PointLable;
                        }
                    }
                }

                (function (x) {  
                    var infoWindow = new BMap.InfoWindow(winfowText, { enableMessage: false,  30, height: 20 });
                    m1.addEventListener("click", function () {
                        this.openInfoWindow(infoWindow);
                    });
                })(i);
                maps.addOverlay(m1);


                var lab1 = new BMap.Label(labText, { position: firstPoint, offset: new BMap.Size(-10, -25) });
                lab1.setStyle({
                    color: "#fff",
                    fontSize: "16px",
                    backgroundColor: "0.05",
                    border: "0",
                    fontWeight: "bold"
                });
                maps.addOverlay(lab1);
            }

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原文地址：https://www.cnblogs.com/milkytea/p/6723494.html