new mars3d.layer.GeoJsonLayer({使用data实现带背景颜色的文字效果
相关代码:constgeojsonLayer=newmars3d.layer.GeoJsonLayer({data:{type:"FeatureCollection",features:[{type:"Feature",geometry:{type:"MultiLineString",coordinates:[[[121.415473,29.610703],[121.627713,29.51360