【正文】 coverage area wide advantage, build a based on C/S structure of work chat system, and provide the work service mainly to chat to satisfy the users, according to his own will and munication needs and convenient degree of pursuit, rich user39。 關(guān)鍵詞 ： C C/S 結(jié)構(gòu) 數(shù)據(jù)庫 主程序 Abstract II Abstract With the development of work technology work chat technology is bee the industry and scientific research institutions close attention． Based on work chat technology in recent years has bee the emerging chat munication． Network chat is in the 1990s, it was developed in the original face to face for such information carrier by dynamic voice, on the basis of increased noncontact through the static text as the carrier type of munication． Its restrictive is lower, avoid the gleam of restraining factors in munication。其使用的 C/S 結(jié)構(gòu)系統(tǒng)可以在任何一臺(tái)的計(jì)算機(jī)上使用， 系統(tǒng)的部署和維護(hù)只是在服務(wù)器上進(jìn)行，這樣的模式既能減少管理的成本，更重要的是它能很方便的實(shí)現(xiàn)用戶與系統(tǒng)的交互，更快地響應(yīng)用戶信息交互請求，加之微軟 C編程語言在窗體應(yīng)用上的優(yōu)勢以及平臺(tái)的獨(dú)立性好、簡便的窗體生成為 C/S 的實(shí)現(xiàn)提供了很好的技術(shù)基礎(chǔ) 。 濰坊科技學(xué)院 本科畢業(yè)設(shè)計(jì) （ 論文 ） 題 目 基于 .NET的在線聊天系統(tǒng) 院（系） 中印計(jì)算機(jī)軟件學(xué)院 專業(yè) 計(jì)算機(jī)科學(xué)與技術(shù) 學(xué) 號(hào) 202001450006 學(xué)生姓名 紀(jì) 連 文 指導(dǎo)教師 祝 凌 云 起訖日期 設(shè)計(jì)地點(diǎn) 濰坊科技學(xué)院 摘要 I 摘 要 隨著網(wǎng)絡(luò)技術(shù)的不斷發(fā)展，網(wǎng)絡(luò)聊天技術(shù)正成為目前產(chǎn)業(yè)界和科研機(jī)構(gòu)密切關(guān)注的焦點(diǎn) 。 本系統(tǒng)前臺(tái)選用了 C等作為主要的編程工具和語言 ,后臺(tái)選用 SQL Server2020 作為數(shù)據(jù)庫服務(wù)器。 Chat system is providing these services with dynamic interaction function of the management information system, it achieved a work of online chat。s work life and daily munication means, will gets more and more users favor． Keywords: C C/S structure DateBase MainProcess 目錄 III 目 錄 摘 要 ................................................................................................................................................. I 目 錄 ..............................................................................................................................................III 第 1 章 緒論 .................................................................................................................................... 1 1． 1 選題背景及意義 .................................................................................................................. 1 1． 2 網(wǎng)絡(luò)聊天簡介 ...................................................................................................................... 1 1． 3 系統(tǒng)設(shè)計(jì)思想 ...................................................................................................................... 1 1． 4 可行性分析 ......................................................................................................................... 2 1． 5 系統(tǒng)運(yùn)行環(huán)境 ...................................................................................................................... 2 第 2 章 相關(guān)技術(shù)概述 ........................................................................................................................ 3 2． 1 客戶端 /服務(wù)器（ Client/Server）結(jié)構(gòu)概述 ............................................................................ 3 2． 2 SOCKET 編程技術(shù) .............................................................................................................. 3 SQL Server 2020 概述 ............................................................................................................. 4 ADO． NET 技術(shù) .................................................................................................................... 4 第 3 章 需求分析 ............................................................................................................................... 5 3． 1 系統(tǒng)需求分析 ........................................................................................................................ 5 3． 2 系統(tǒng)功能需求 ........................................................................................................................ 5 3． 3 數(shù)據(jù)處理需求 ........................................................................................................................ 6 3． 4 系統(tǒng)性能需求 ........................................................................................................................ 6 第 4 章 系統(tǒng)分析與設(shè)計(jì) .................................................................................................................... 7 4． 1 系統(tǒng)功能模塊設(shè)計(jì) ................................................................................................................. 7 系統(tǒng)模塊詳細(xì)設(shè)計(jì) .................................................................................................................. 7 客戶端功能模塊設(shè)計(jì) ........................................................................................................ 7 服務(wù)器端功能模塊設(shè)計(jì) ....................................................................................................10 系統(tǒng)整體流程圖 ....................................................................................................................10 第 5 章 數(shù)據(jù)庫設(shè)計(jì) .........................................................................................................................13 概述 ......................................................................................................................................13 數(shù)據(jù)庫概念結(jié)構(gòu)設(shè)計(jì) .............................................................................................................13 數(shù)據(jù)庫邏輯結(jié)構(gòu)設(shè)計(jì) .............................................................................................................14 用戶信息實(shí)體屬性圖 .......................................................................................................14 用戶好友關(guān)系信息實(shí)體屬性圖 .........................................................................................14 數(shù)據(jù)表設(shè)計(jì) ................................................................................................