This is a demand-driven tool that integrates the use of an SQLite database. It supports functions such as creating points, lines, and polygons from CSV/Excel files, network optimization, online map searching, coordinate picking, buffer calculations, exporting Mapinfo TAB and KML layers, neighborhood display, sector drawing, and the drawing of point, line, and polygon graphics. It also includes AOI extraction, thematic maps, heat maps, and more.-->(这是一个基于需求而开发的使用工具，集合了Sqlite数据库使用，根据CSV/Excel文件创建点线面，以及网络优化,在线地图搜索,坐标拾取,缓冲区计算,导出Mapinfo TAB和KML图层,邻区显示,扇区绘制，点，线，面图形绘制，AOI提取，专题地图，热力图等功能)
