图书馆管理系统，实现了读者，图书，流通管理三个模块，读者类别设置和读者档案管理，图书类别设置和图书档案管理，图书征订,借阅，归还，预期清单，图书罚款-Library management system, readers, books, circulation management of the three modules, readers and readers set up category of archives management, library categories set up a