这是一个51开发程序，是对液晶屏控制的，包括数据储存，数据显示，数据发送。等-51 This is a development process is to control the LCD screen, including data warehousing, data show that the data sent. Etc.

data warehousing essentials

本系统是图书管理系统，其具有登录管理、图书查询、借出归还书籍、入库删除书籍等功能。那么从这些基本功能出发，本系统分成四大模块：系统管理模块、书籍数据管理模块、读者数据管理模块、借还系统模块。-This system is a library management system, which has a login management, book search, return books borrowed, warehousing delete books and other functions