{"ok":true,"crs":[{"id":"WGS84","name":"WGS84","desc":"GPS 原始坐标 / OpenStreetMap / Google 国际版"},{"id":"GCJ02","name":"GCJ02","desc":"国测局火星坐标，高德 / 腾讯 / Google 中国版"},{"id":"BD09","name":"BD09","desc":"百度坐标（GCJ02 二次偏移）"},{"id":"CGCS2000","name":"CGCS2000","desc":"2000 国家大地坐标系，与国家 CGCS 标准一致"},{"id":"EPSG:3857","name":"EPSG:3857","desc":"Web 墨卡托投影，OpenLayers 默认投影"}]}