摘要：
1）Geofence是什么According to wikipedia,Geofence（也称地理围栏）, “Ageo-fenceis avirtualperimeterfor a real-worldgeographic area.”A geo-fence could be dynamically generated—as in a radius around a store or point location. Or a geo-fence can be a predefined set of boundaries, like school attendance zones or neig 阅读全文
