图填充颜色
                    fillColor: "#00FF7F",
                    // 专题图hover 样式
                    circleHoverStyle: {
                        fillOpacity: 1,
                        stroke: true,
                        strokeWidth: 4,
                        strokeColor: 'blue'
                    }
                };
                map.addLayer(themeLayer);
                themeLayer.on('mousemove', showInfoWin);
                themeLayer.on("mouseout", closeInfoWin);
          