这是一个地图学中关于地图图幅编码的程序，用于新旧编码的转换-This is a map of study sites on the map map coding process for the conversion of old and new coding

用C++语言实现新旧图幅的互相转换，主要是主要是转变图幅编码的区别。-C++ language with new and old sheet of each conversion, the main change is the main difference map sheet coding.