dataMd: "properties是一个包含三个属性的对象，title表示标题，marker-symbol表示点位的文字内容，marker-color表示点位颜色，properties可以删除，然后使用场景对象属性设置。\n```\n{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"geometry\": {\n \"type\": \"Point\",\n \"coordinates\": [\n 116.2,\n 39.56\n ]\n },\n \"properties\": {\n \"title\": \"swimming\",\n \"marker-symbol\": \"swimming\",\n \"marker-color\": \"#8F1312\"\n }\n },\n {\n \"type\": \"Feature\",\n \"geometry\": {\n \"type\": \"Point\",\n \"coordinates\": [\n 115.2,\n 38.56\n ],\n \"properties\": {\n \"title\": \"8\",\n \"marker-symbol\": \"8\",\n \"marker-color\": \"#46117E\"\n }\n }\n },\n {\n \"type\": \"Feature\",\n \"geometry\": {\n \"type\": \"Point\",\n \"coordinates\": [\n 114.2,\n 37.56\n ],\n \"properties\": {\n \"title\": \"6\",\n \"marker-symbol\": \"6\",\n \"marker-color\": \"#713291\"\n }\n }\n }\n ]\n}\n```\n" = ...
关于data对象的说明文档，包含属性解释和JSON示例