包含全国的省市区县地图的json和js数据，目前echarts官网由于屏蔽了地图数据下载接口，所有很难找到真实有效的数据，请珍藏。(JSON and JS data of the national provincial, urban and county maps are included. At present, because the download interface of map data is blocked, it is difficult to find real and eff