本说明是在线书店系统项目软件产品的总体设计和实现说明，包括程序系统的基本处理流程、程序系统的组织结构、模块划分、功能分配、接口设计、运行设计和出错处理设计等-The present note is online bookstore system project software product design and implementation, including procedures for the basic treatment processes, procedures system' s organizational structure, module division, functional distribution, interface design, operation design and treatment design mistakes