2.4.7 类别 11                                                                                                                        
2.8.1 地图 14                                                                                                                        
2.8.2 POI检索 14                                                                                                                  
2.8.3 地理编码 14                                                                                                                
2.8.4 线路规划 14                                                                                                                
2.8.5 覆盖物图层 14                                                                                                             iOS平台个⼈移动地图的设计与应⽤(3):http://www.751com.cn/jisuanji/lunwen_12299.html