介绍图书管管理系统的UML怎样做 是我们能够绘画用例图-Library Management System, introduced the UML is that we can do painting Use Case Diagram

是一个简单的图书管理系统设计，包含的完整的用例图，时序图，协作图等等，适合初学者参考-Is a simple library management system design, contains the complete use case diagram, sequence diagram and collaboration diagram, etc., suitable for beginners reference