mapInfo文件格式详解：Mapinfo实现了"图形对象"及"属性数据"一对一联系，从而能够完成图形数据和属性数据的双向查询。为了实现基于属性信息的快速查询，Mapinfo支持针对属性字段建立索引。Mapinfo以文件的方式，将上述的不同信息存放到不同的文件中以共同组成一个完整的图层。-Detailed mapInfo file format: Mapinfo to achieve the " graphic object"　and " attribute data"　one-on-one contact in order to complete the graphics data and attribute data of the two-way query. Based on the attribute information in order to achieve fast query, Mapinfo support attribute fields for indexing. Mapinfo to the manner in which documents will be different from the above-mentioned information is stored to a different document to form a complete layer.