因工作原因，需要实现数据的快速查找与维护，因为是用C语言实现，所以写了一个通用的算法，实现了与数据结构无关。当时这一部分用在了一个实时交通信息上。

-Due to work, quickly find the data needed to achieve and maintain, because it is written in C language, so write a generic algorithm, has nothing to do with the data structure. This part was used in a real-time traffic information on.