百度地图功能不知道该如何实现

Question

 <div class="demo_main">
        <fieldset class="demo_title">百度地图API显示多个标注点带提示的代码</fieldset>
        <fieldset class="demo_content">
            <div style="min-height: 600px; width: 100%;margin:0,auto;" id="map"></div>
            <script type="text/javascript">

                var map; //Map实例
                function map_init() {
                    map = new BMap.Map("map");
                    //第1步：设置地图中心点，安丘
                    var point = new BMap.Point(119.225605,36.483843);
                    //第2步：初始化地图,设置中心点坐标和地图级别。
                    map.centerAndZoom(point, 13);
                    //第3步：启用滚轮放大缩小
                    map.enableScrollWheelZoom(true);
                    //第4步：向地图中添加缩放控件
                    var ctrlNav = new window.BMap.NavigationControl({
                        anchor: BMAP_ANCHOR_TOP_LEFT,
                        type: BMAP_NAVIGATION_CONTROL_LARGE
                    });
                    map.addControl(ctrlNav);
                    //第5步：向地图中添加缩略图控件
                    var ctrlOve = new window.BMap.OverviewMapControl({
                        anchor: BMAP_ANCHOR_BOTTOM_RIGHT,
                        isOpen: 1
                    });
                    map.addControl(ctrlOve);

                    //第6步：向地图中添加比例尺控件
                    var ctrlSca = new window.BMap.ScaleControl({
                        anchor: BMAP_ANCHOR_BOTTOM_LEFT
                    });
                    map.addControl(ctrlSca);

                    //第7步：绘制点  
                    var list = '${list}';
                    console.log(list);
                    for (var i = 0; i < list.size; i++) {
                        var lng = list[i].lng;
                        console.log(lng);
                        var lat = list[i].lat;
                        var maker = addMarker(new window.BMap.Point(lng, lat), i);
                        addInfoWindow(maker, list[i]); 
                    }
                }

                // 添加标注
                function addMarker(point, index) {
                    var myIcon = new BMap.Icon("http://api.map.baidu.com/img/markers.png",
                        new BMap.Size(46, 25), {
                            offset: new BMap.Size(10, 25),
                            imageOffset: new BMap.Size(23, 0 - index * 25)
                        });
                    var marker = new BMap.Marker(point, { icon: myIcon });
                    map.addOverlay(marker);
                    return marker;
                }

            // 添加信息窗口
                function addInfoWindow(marker, poi) {
                    //pop弹窗标题
                    var title = '<div style="font-weight:bold;color:#CE5521;font-size:14px">' + poi.baseName + '</div>';
                    //pop弹窗信息
                    var html = [];
                    html.push('<table cellspacing="0" style="table-layout:fixed;width:100%;font:12px arial,simsun,sans-serif"><tbody>');
                    html.push('<tr>');
                    html.push('<td style="vertical-align:top;line-height:16px;width:38px;white-space:nowrap;word-break:keep-all">企业名称：</td>');
                    html.push('<td style="vertical-align:top;line-height:16px">' + poi.baseName + ' </td>');
                    html.push('</tr>');
                    html.push('<tr>');
                    html.push('<td style="vertical-align:top;line-height:16px;width:38px;white-space:nowrap;word-break:keep-all">联系人：</td>');
                    html.push('<td style="vertical-align:top;line-height:16px">' + poi.contacrName + ' </td>');
                    html.push('</tr>');
                    html.push('<tr>');
                    html.push('<td style="vertical-align:top;line-height:16px;width:38px;white-space:nowrap;word-break:keep-all">联系电话：</td>');
                    html.push('<td style="vertical-align:top;line-height:16px">' + poi.contactTel + ' </td>');
                    html.push('</tr>')
                    html.push('</tbody></table>');
                    var infoWindow = new BMap.InfoWindow(html.join(""), { title: title, width: 200 });
                    var openInfoWinFun = function () {
                        marker.openInfoWindow(infoWindow);
                    };
                    marker.addEventListener("click", openInfoWinFun);
                    return openInfoWinFun;
                } 

                //异步调用百度js
                function map_load() {
                    var load = document.createElement("script");
                    load.src = "http://api.map.baidu.com/api?v=2.0&callback=map_init";
                    document.body.appendChild(load);
                }
                window.onload = map_load;
            </script>
        </fieldset>
    </div>

想要在页面显示所有已经有的地点标注，并且有信息，但是就是实现不了，不知道哪里错了，求助

Answer 1

使用f12进行断点调试，查看js中的数据格式，还有对象是否出错