在此unit中，实现了对于QQ自定义IP数据库(MyIP.dat)的IP数据库的检索。

参考了冷风(coldwind@citiz.net)实现对于纯真网络的IP数据库的读取。

附带的MyIP.dat是南京大学的内网ip分布。-in this unit, realized for the QQ from the definition of IP database (MyIP.dat) IP database retrieval. Reference to the wind (coldwind@citiz.net) for the realization of the pure IP network database read. MyIP.dat fringe of the Nanjing University is within ip distribution network.