概要设计目录1、引言 ..................................................................................................................................... 2编写目的 ............................................................................................................................. 2背景 ..................................................................................................................................... 2定义 ..................................................................................................................................... 3参考资料 ............................................................................................................................. 32、总体设计 ............................................................................................................................. 3需求功能 ............................................................................................................................. 3运行环境 ............................................................................................................................... 43、接口设计 ............................................................................................................................. 4用户接口 ............................................................................................................................. 4外部接口 ............................................................................................................................. 4内部接口 ............................................................................................................................. 44、模块过程设计 ..................................................................................................................... 5功能 ..................................................................................................................................... 5模块分类 ....................