摘 要作为除电视、报纸、广播之外的第四大媒体，互联网不仅成为人们获取新闻信息的主要来源，更成为了人们闲暇之余的一种休闲手段。随着互联网技术的发展，各种各样基于网络的应用也随之诞生，网络聊天工具便是其中的一种。本文采用Visual Studio 2008+SQL Server 2005开发环境，结合WinForms、ADO.NET等多种技术，实现了一个类似QQ的网络聊天工具，并在WINDOWS平台上加以了实现。通过C#语言进行网络编程，通过公共的数据库交换各种信息，实现了人性化的界面设计与功能设计。软件经过测试，满足现代人们即时通信的需求，达到预期的设计效果，对网络聊天工具的人性化设计具有一定的现实意义，同时也为其他相关项目的设计提供了参考。关键词：网络聊天工具 C# 即时通信 数据库 人性化AbstractInternet is the fourth major media other than televisions, newspapers and broadcasting, acting not only as a major source of news information, it is also a means of recreation for people during their leisure. Along with the high-speed development of the Internet technology, various of applications which are based on network were born,one of them is online chat tool. This thesis develops a online chat tool which like QQ and based on the integration of various technologies such as WinForms, ADO.NET etc,and based on the adoption of Visual Studio 2008+SQL Server 2005 development environment, then implement it on WINDOWS platform. It used C # language for network programming,and exchange different information through common database for the implemention of the humanized UI design and function design. After going through the tests, this online chat tool can achieve the projected design purpose of instantaneous communication needs of people in modern times, it also poses certain realistic significance to the humanization of online chat tool and provides as a reference to the design of other relevant projects.Key words: online chat tool C# instantaneous communication database humanization 目 录第一章 引言11.1 系统开发背景11.2 聊天软件的开发目标1第二章 开发环境与关键技术简介22.1 C#简介22.2 .NET Framework简介42.3 WinForms窗体设计技术52.4 C/S结构52.5 ADO.NET技术62.6 SQL Server 2005数据库简介6第三章 需求分析83.1 可行性研究83.2 用户需求83.3 性能需求83.4 系统功能需求9第四章 系统设计104.1 系统功能结构104.2 系统模块划分104.3 系统整体流程图11第五章 详细设计125.1 登录界面设计125.2 注册界面设计155.3 主界面设计195.4 查找/添加好友界面设计225.5 聊天界面设计285.6 个人设置界面设计335.7 头像选择界面设计345.8 系统消息界面设计35结束语38参考文献39附录一40附录二41Opinions and suggestions on the partys mass line educational practiceAccording to the central and provincial, municipal unified deployment, according to municipal Party committee about carrying out the partys mass line educational practice activity in the citys implementation opinions, the spirit of the partys mass line educational practice activities from 20* in January to 99 months, carried out at all levels of departments and directly affiliated institutions and grass-roots party organizations. According to my actual County, the county to carry out the education practice put forward the following implementation opinions.First, the overall requirementsCounty county education practice to the eighteen Party of eight, the spirit of the the third Plenary Session of the 18th CPC Central Committee as the guidance, conscientiously implement the spirit of general secretary Xi book series of important speech, earnestly implement the Central Committee really, opinions and advice , party implementing the guiding ideology of opinions to determine the objectives and requirements, step method, in accordance with the look in the mirror, dress up, wash bath, cure treatment, the general requirements of for the people pragmatic honest people as the theme, in carrying forward the spirit of Zhuanglang Zhuang, improve their work style, service to the masses of the people, the foundation of consolidating grassroots, promote transformation across efforts, to further implement the central eight regulations and The opposition party and government austerity waste regulations , double section provincial regulations, municipal provisions of the twelve plan and the implementation measures for on improving the work style of close ties with the masses law, highlight style building, carry out the whole wind spirit, resolutely oppose formalism, bureaucracy, hedonism and wasteful extravagance to solve the problems, Party members and cadres of the style and the masses of people strong, the Ministry of Party members and cadres to further improve their thinking and understanding, to further change the style of the wind, the masses to close, honest and pragmatic people honest image to further establish the foundation to further reinforce the basic level. Style of the building of the new results to promote the construction of a powerful force of the county and the ecological culture of the county and county construction.In educational practice activities of the unit is mainly: the county and below county departments under the organs, enterprises and institutions directly under the township, street, and community, village, non-public economic organizations, social organizations and other grass-roots organizations. Agencies and branches, each single unit, follow the rules on internal institutions. Educational practice with step by step.To adhere to the county leadership, leadersh