运用C++STL（标准模块库）中的类，结合迭代子、算法和容器进行泛型程序设计，编写泛型程序，体会泛型程序中算法与数据结构是如何真正实现分离的。

gg-Tracker tracks your mobile using GSM Cell-location in combination with GPS. It uses both GPS and GSM networks to get a position. If only GSM is available it relies on location previously stored using a GPS receiver or the CellDB.org . This