【正文】 r 2020 was established, the application procedure development using the Visual Studio 2020 platform and C language development. It achieved it realizes the trading operation, recording, statistics and other functions. Its characteristic is with friendly interface, simple operation, convenient and quick. Key words： the secondhand website of school backstage database application procedure 序言 ........................................................................................................................................... 7 一、系統(tǒng)規(guī)劃 ............................................................................................................................ 9 （一）選題背景 ..................................................................................................................... 9 （二）需求分析 ..................................................................................................................... 9 （三） 系統(tǒng)設(shè)計(jì)相關(guān)原理 .....................................................................................................11 技術(shù) ........................................................................................................................11 Studio 2020............................................................................................................12 Server 2020...............................................................................................................12 （四）可行性分析 ................................................................................................................13 ....................................................................................................................13 ....................................................................................................................14 ....................................................................................................................14 二、系統(tǒng)分析 ...........................................................................................................................16 （一）、系統(tǒng)業(yè)務(wù)流程分析 ..................................................................................................16 （二） .數(shù)據(jù)流程分析 ...........................................................................................................17 ...........................................................................................................................17 ...........................................................................................................................17 3．系統(tǒng)管理 ......................................................................................................................18 .......................................................................................................................18 .......................................................................................................................19 .......................................................................................................................19 7．購買管理模塊 ..............................................................................................................20 8．搜索功能模塊 ..............................................................................................................20 （三）數(shù)據(jù)字典 ....................................................................................................................20 ...........................................................................................................................20 ............................................................................................................21 .......................................................................................................................22 ................................................................................................................23 ................................................................................................................23 三、系統(tǒng)設(shè)計(jì) ...........................................................................................................................25 （一）系統(tǒng)功能設(shè)計(jì) .............................................................................................................25 （二）數(shù)據(jù)庫設(shè)計(jì) ................................................................................................................28 1．?dāng)?shù)據(jù)庫表及表的關(guān)系 ...................................................................................................28 ...........................................................................................................................29 四、系統(tǒng)實(shí)施 ...........................................................................................................................33 （一）會員注冊 ....................................................................................................................33 （二）產(chǎn)品瀏覽 ....................................................................................................................34 （三）購物車 ........................................................................................................................36 （四）管理員登陸 ................................................................................................................37 （五）發(fā)布物品 ....................................................................................................................38 五 系統(tǒng)運(yùn)行與維護(hù) ..................................................................................................................40 （一）測試的任務(wù)及目標(biāo) .....................................................................................................40 ....................................................................................................................40 ........................................