目录一、需求分析..........................................................................................................................31.1需求概述..................................................................................................................31.2功能简介..................................................................................................................31.3网上购物系统功能结构图.........................................................................................4二、数据库设计......................................................................................................................42.1确定联系集..............................................................................................................42.2画出E-R图...............................................................................................................52.3网上购物系统总E-R图............................................................................................8三、数据表设计......................................................................................................................83.1用户表......................................................................................................................83.2商家表........................................................................................................................93.3美食表........................................................................................................................93.4家电表......................................................................................................................93.5百货表......................................................................................................................103.6销售表.......................................................................................................................103.7评价表......................................................................................................................10四．windows窗体应用程序.................................................................................................114.1visualstudio2010连接数据库sqlsever2008...........................................................114.2登陆界面...................................................................................................................124.3用户添加商品界面.......................................................................................................144.4家电管理界面...........................................................................................................16五、总结................................................................................................................................20一、需求分析1.1需求概述随着市场经济的逐渐形成，全球化经济已在国内迅速发展起来。以往的销售模式正在受到空前的挑战：人们已经对去固定的场所、购买（出售）固定的物品的交易方式所带来的不便越来越感到不满，交易时间长、效率低。高额的运费、销售场地的凭租费等繁多的额外开支也给商家带来沉重的成本支出。为了适应市场适应经济前进的步伐，买家和商家都在努力积极地寻找一种能够带来高效率、低成本销售模式。计算机及世界互联网的飞速发展使得这种新的销售模式成为可能近来网上商城已慢慢被人们所熟悉，网上购物这种生活方式已悄然形成。网上商城使得商家可以把商店开到互联网上来、而买家...
