

            map.addLayer(drawLayer);
            map.setView(new ol.View({
                center: [110, 30],
                zoom: 3,
                projection: 'EPSG:4326'
            }));
        }

        //清除客户端查询结果信息
        function clearA() {
            //停止进度条
            stopPressBar();
            if (drawLayer) {
                //移除高亮显示结果图层drawLayerr
                map.removeLayer(drawLayer);
            }
            else
              