下载中国地图数据
下载地址：DataV.GeoAtlas地理小工具
绘制演示
绘制地图
显示南海诸岛简图
地图绘制时设置`china`有南海诸岛简图，设置`China`则没有简图
echarts.registerMap('china', usaJson);隐藏海南诸岛边界线
搜索100000_JD，删除图中的数据片段
隐藏南海诸岛
搜索海南,修改海南省的数据，将图中的数据修改为以下数据
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