目前，大中型城市的多数电脑店已经实现了商品管理、客户管理、销售管理及销售管理等的信息化和网络化，提高了管理效率。但是，在大多数小电脑店，电脑店管理仍然以传统人工管理为主，特别是在商品的采购、销售、库存环节，传统的手工管理处理信息混乱，账目管理困难，效率低下，浪费严重，造成了资产的流失。使用本系统，可以使管理人员从大量繁琐的手工操作中解放出来，方便电脑店管理者对商品进销存的实际情况进行集中的查询与管理工作，改进电脑店的工作，提高工作效率和服务质量，减少资源的浪费和流失。经过实际调查和综合分析，本系统使用功能强大的Microsoft Visual Studio2008作为开发环境，使用编程语言C # 对整个系统进行设计与开发，后台数据库使用Microsoft SQL Server 2005。本系统可以根据实际应用的具体情况，适当加以修改，以便更好应用。本系统操作简单，灵活性好，系统安全性高，运行稳定。关键字：管理系统，电脑，.NET ，C#

The Management System of Computer Enters Sells Saves Based on .NETAbstract

Currently, the majority of large and medium-sized cities computer shop merchandise management, customer management, sales management, and sales management, information technology and network, to improve the management efficiency. However, in most small computer shop, computer store management is still dominated by traditional manual management, especially in the procurement of goods, sales, inventory part of the traditional manual management process information chaos, accounts management difficulties, inefficiency and waste a serious resulting in the loss of assets.Use the system, you can make managers freed from tedious manual operation, convenience goods Invoicing computer store managers a centralized query management work to improve the work of the computer store, and improve work efficiency and service quality and reduce the waste of resources and wastage.Actual investigation and comprehensive analysis of the system using the Microsoft Visual Studio2008 powerful as a development environment, using the programming language C # design and development of the entire system, back-end database using Microsoft SQL Server 2005. The system can be provided according to the specific circumstances of the actual application, appropriately modified in order to better application. The system is easy to operate, good flexibility, the system safe and stable operation..

Key words: management system，computer，.NET ，C#

目 录1 绪 论51.1 课题研究背景及意义51.2 本系统使用的方法和语言61.2.1 统一建模语言UML61.2.2 .NET和C#71.3系统描述81.4 分析方法82 需求收集92.1 业务过程分析92.2 研究领域分析102.2.1 初步用例模型开发102.2.2 开发初步类图122.3 系统需求研究142.3.1 收集系统需求142.3.2开发系统功能包图143 系统分析与设计163.1 开发系统用例模型163.2 系统数据库设计163.2.1 数据流分析162.3 数据字典173.2.2 电脑销售管理系统的数据项193.2.3 数据库需求分析213.2.4 数据库概念结构设计223.2.3 数据库逻辑结构设计244 开发系统274.1 编制代码274.2 系统实现274.2.1 用户界面274.2.2 代码284.3 部分系统界面及功能简介284.3.1用户信息管理界面如图4-2284.3.2主界面 如图4-3294.3.3采购管理界面 如图4-5315 部 署33结 束 语34致　　谢35参 考 文 献36