.C# 代码清单共 1 个项目，包含 5 个类。

项目： librarysystem类 :Program.cs Readers.cs Manage.cs Menu.cs Publications.cs主类代码：namespace librarysystem{ /// <summary>///类名： Program///功能：项目主类///时间： 2015-11-19///</summary>class Program{static void Main( string [] args){Menu meu = new Menu ();meu.ShowMainMenu();Console .ReadLine();}}}出版物类代码：namespace librarysystem{ /// <summary>///类名： Publications///功能：馆藏出版物信息///时间： 2015-11-19///</summary>class Publications{/* 出版物编号 */private string PublicationISBN;public string PublicationIsbn{get{return PublicationISBN;}set{PublicationISBN =value ;}}/* 出版物名称 */public string PublicationName;/* 出版物作者或出版机构*/public string PublicationAuthor;/* 出版物在架状态 */public bool PublicationStatus;/* 出版物类型 */public string PublicationType;public Publications(){}public Publications( string PublicationISBN, string PublicationName, string PublicationAuthor,string PublicationType, bool PublicationStatus){this . PublicationISBN = PublicationISBN;this .PublicationName = PublicationName;this .PublicationAuthor = PublicationAuthor;this .PublicationType = PublicationType;this .PublicationStatus = PublicationStatus;}}}读者类代码：namespace librarysystem{ /// <summary>///类名： Readers///功能：已获取权限读者的信息///时间： 2015-11-19///</summary>class Readers{private string ReaderID;public string ReaderId{get{return ReaderID;}set{ReaderID = value ;}}.public string ReaderName;public string ReaderSex;public string ReaderDepartment;public string ReaderMajor;public string[] BowPublication =new string [10]{ "" ,"" ,"" ,"" ,"" ,"" ,"" ,"" ,"" ,"" };public Readers(){}public Readers( string ReaderID,string ReaderName, string ReaderSex, string ReaderDepartment,string ReaderMajor){this .ReaderID = ReaderID;this .ReaderName = ReaderName;this .ReaderSex = ReaderSex;this .ReaderDepartment = ReaderDepartment;this .ReaderMajor = ReaderMajor;}}}管理类代码：namespace librarysystem{/// <summary>///类名： Manage///功能：管理员执行图书管理操作///时间： 2015-11-19///</summary>class Manage{public bool BorrowFlag =false ;/* 借阅操作成功标志 */public bool ReturnFlag =false ;/* 归还操作成功标志 */public Publications pub_search; /* 保存查询到的出版物 */public Readers Red_valid; /* 保存查询到的合法用户 *//* 声明馆藏出版物数组*/public Publications [] pubs= new Publications[200];/* 声明注册读者数组*/public Readers [] reds= new Readers [30];/* 实例化馆藏出版物对象*/public Publications pub0 = new Publications ("000000" ,"C# 从入门到精通 "," 明日科技" ,"书籍 ",true );public Publications pub1 = new Publications ("000001" , "数值分析 ", "清朗 " , " 书籍 ", true );public Publications pub2 = new Publications ("000002" , "模式识别 ", "学工 " , " 书籍 ", true );public Publications pub3 = new Publications ("000003" , "中国地理 ", "地理科学院 " , " 杂志" , true );public Publications pub4 = new Publications("000004" , "意林 " , " 市文学艺术界联合会" , " 杂志 ", true );public Publications pub5 = new Publications ("000005" , "大学报 " , "大学 ", "报纸 ",true );public Publications pub6 = new Publications ("000006" , "经济学人 ", "伦敦经济学人报纸有限公司 " , " 杂志 ", true );public Publications pub7 = new Publications ("000007" , "计算机网络 ", "谢希仁 " , " 书籍" , true );public Publications pub8 = new Publications ("000008" , "红楼梦 " , "曹雪芹 " , " 书籍 ", true );public Publications pub9 = new Publications ("000009" , "新东方雅思培训课程", "俞敏洪" , " 音像制品 ", true );public Publications pub10 = new Publications ("000010" , "MATLAB 实用教程 " , " 世杰 ", " 音像制品 ", true );/* 实例化已注册读者对象*/public Readers red0 = new Readers ("20150000", "华", " 男" , " 电子信息学院 " , " 电子与通信工程 " );public Readers red1 = new Readers ("20150001" , "王鹏 ", "男" , " 物理学院 ", "微电子学 ");public Readers red2 = new Readers ("20150002" , "建豪 ", "男" , " 数学学院 ", "现代数学分析" );public Readers red3 = new Readers ("20150003", "莉", " 女" , " 化学化工学院 " , " 化学分析" );public Readers red4 = new Readers ("20150004", "吴娜 " , " 女 ", " 医学院 " , " 口腔医学 ");public Readers red5 = new Readers ("20150005", "宋雅茹 " , "女" , " 电子信息学院 " , " 光学工程");/* 初始化出版物数组*/public void PublicationsInitial(){pubs[0] = pub0;pubs[1] = pub1;pubs[2] = pub2;pubs[3] = pub3;pubs[4] = pub4;pubs[5] = pub5;pubs[6] = pub6;pubs[7] = pub7;pubs[8] = pub8;pubs[9] = pub9;pubs[10] = pub10;}/* 初始化读者数组 */public void ReadersInitial(){reds[0] = red0;reds[1] = red1;reds[2] = red2;reds[3] = red3;reds[4] = red4;reds[5] = red5;}/* 查询图书操作 */public bool SearchPublications(){string Pub_Name;bool SearchFlag = false ;Pub_Name = Console .ReadLine();foreach (Publications pub in pubs){if (pub != null && pub.PublicationName ==Pub_Name){SearchFlag = true ;pub_search = pub;}}return SearchFlag;}/* 借阅图书操作 */public void Borrow(){string Red_Name;string Pub_Name;bool ReaderFlag =false ;Red_Name =Console .ReadLine();foreach (Readers red in reds){if (red !=null&& red.ReaderName == Red_Name){ReaderFlag = true ;Red_valid = red;}}if (ReaderFlag){Console .Write( " 请输入您需要借阅出版物的名称:" );Pub_Name = Console .ReadLine();foreach (Publications pub in pubs){if (pub != null && pub.PublicationName == Pub_Name){BorrowFlag = true ;pub.PublicationStatus =false ;AddToReders(pub.PublicationName, Red_valid);}}}else{Console .WriteLine( " 抱歉，您是非法读者，不能借阅图书" );}}/* 归还图书操作 */public void Return(){string Red_Name;string Pub_Name;bool ReaderFlag =false ;Red_Name = Console .ReadLine();foreach (Readers red in reds){if (red != null && red.ReaderName == Red_Name){ReaderFlag = true ;Red_valid = red;}}if (ReaderFlag){Console .Write( "请输入您需要归还出版物的名称:" );Pub_Name = Console .ReadLine();foreach (Publications pub in pubs){if (pub != null && pub.PublicationName == Pub_Name){for (int i = 0; i < 10;i++ ){if (Red_valid.BowPublication[i] == Pub_Name){ReturnFlag = true ;pub.PublicationStatus =true ;RemoveFromReders(Pub_Name, Red_valid);}}}}}else{Console .WriteLine( "抱歉，您是非法读者，无归还图书信息");}}/* 添加图书到读者 */private void AddToReders( string PublicationName,Readers red) {/* 设置借阅上限为 10 本*/for (int i = 0; i < 10; i++){if (red != null && red.BowPublication[i]=="" ){red.BowPublication[i] = PublicationName;break ;}}}/* 从读者对象中移除图书*/private void RemoveFromReders( string PublicationName,Readers red) {/* 设置借阅上限为 10 本*/for (int i = 0; i < 10; i++){if (red != null && red.BowPublication[i] == PublicationName){red.BowPublication[i] = red.BowPublication[i+1];}}}/* 新书入库操作 */public void AddPublications( Publications pub){for (int i = 11; i < 200; i++){if (pubs[i]== null ){pubs[i] = pub;}}}/* 添加新读者操作 */public void AddReaders( Readers red) {for (int i = 6; i < 30; i++){if (reds[i] == null ){reds[i] = red;}}}/* 查询读者信息 */public void RedIndex(){string Red_Name;bool ReaderFlag =false ;Red_Name = Console .ReadLine();foreach (Readers red in reds){if (red != null && red.ReaderName == Red_Name){ReaderFlag = true ;Red_valid = red;}}if (!ReaderFlag){Console .WriteLine( "抱歉，您是非法读者，无法查到您的借阅信息" );}}}}菜单类代码：namespace librarysystem{ /// <summary>///类名： Menu///功能：显示服务页面///时间： 2015-11-19///</summary>class Menu{//创建一个具体的管理对象Manage mag = new Manage ();//声明一个读者对象Readers red;//声明一个出版物对象Publications pub;public void ShowMainMenu(){mag.PublicationsInitial();mag.ReadersInitial();Console .WriteLine( "欢迎使用图书管理系统V1.0" );Console .WriteLine( "-------------------------------------------------------------------");Console .WriteLine( "1. 查询图书 " );Console .WriteLine( "2. 借书服务 " );Console .WriteLine( "3. 还书服务 " );Console .WriteLine( "4. 新出版物入库 " );Console .WriteLine( "5. 录入新读者 " );Console .WriteLine( "6. 查询读者的借阅信息" );Console .WriteLine( "7. 退出管理系统 " );Console .WriteLine( "-------------------------------------------------------------------");bool flag;do{flag = false ;Console .WriteLine( "请选择： ");string key = Console .ReadLine();switch(key){case "1" :Console .Write( "请输入需要查询图书的书名：");ShowPubInfo();break ;case "2" :Console .Write( "请输入您的姓名：");mag.Borrow();ShowBorrowInfo();break ;case "3" :Console .Write( "请输入您的姓名：");mag.Return();ShowReturnInfo();break ;case "4" :Console .WriteLine( " 按照提示逐步入需要入出版物的信息⋯⋯");ShowAddPublications();break ;case "5" :Console .WriteLine( " 按照提示逐步入新注册者的信息⋯⋯" );ShowAddReaders();break ;case "6" :Console .Write( "入您的姓名：" );mag.RedIndex();ShowRedPubInfo(mag.Red_valid);break ;case "7" :flag = false ;break ;default :Console .WriteLine( " 无此，是否重新（y/n ）？ ");string answer = Console .ReadLine();if (answer != "y" ){flag =false ;}else{flag = true ;}break ;}} while (flag);}/* 显示查询到的出版物信息*/public void ShowPubInfo(){if (mag.SearchPublications()){Console .WriteLine( "您要查询的出版物信息：");Console .WriteLine( "-------------------------------------------------------------------");.Console.WriteLine("编号： " + mag.pub_search.PublicationIsbn);Console.WriteLine("出版物名字：" + mag.pub_search.PublicationName);Console.WriteLine("出版物作者：" + mag.pub_search.PublicationAuthor);Console.WriteLine("出版物类型：" + mag.pub_search.PublicationType);if (mag.pub_search.PublicationStatus){Console .WriteLine( "出版物状态：在架，可借" );}else{Console .WriteLine( "出版物状态：未在架，不可借" );}Console .WriteLine( "-------------------------------------------------------------------");Console .WriteLine("" );Console .WriteLine("" );Console .WriteLine( "是否办理其他业务(y/n)?" );string answer = Console .ReadLine();if (answer == "y" ){ShowMainMenu();Console .WriteLine();}else{Console .WriteLine( "结束 ");}}else{Console .WriteLine( "抱歉，未找到该图书！" );Console .WriteLine( "是否办理其他业务(y/n)?" );string answer = Console .ReadLine();if (answer == "y" ){ShowMainMenu();Console .WriteLine();Console .WriteLine();}else{Console .WriteLine( "结束 ");}}}/* 显示借阅操作结果*/public void ShowBorrowInfo(){if (mag.BorrowFlag){Console .WriteLine( "恭喜，借阅成功！");ShowRedPubInfo(mag.Red_valid);}else{Console .WriteLine( "抱歉 ,借阅失败！ "); Console .WriteLine( "是否办理其他业务(y/n)?" );string answer = Console .ReadLine();if (answer == "y" ){ShowMainMenu();}else{Console .WriteLine( "结束 ");}}}/* 显示归还操作结果*/public void ShowReturnInfo(){if (mag.ReturnFlag){Console .WriteLine( "恭喜，归还成功！");ShowRedPubInfo(mag.Red_valid);}else{Console .WriteLine( "抱歉 ,归还失败！ "); Console .WriteLine( "是否办理其他业务(y/n)?" );string answer = Console .ReadLine();if (answer == "y" ){ShowMainMenu();}else{Console .WriteLine( "结束 ");}}}public void ShowRedPubInfo( Readers red){Console .WriteLine( "当前你的借阅信息如下:");Console .WriteLine( "--------------------------------------------------------------------");Console .WriteLine( "编号：" + red.ReaderId);Console .WriteLine( "姓名：" + red.ReaderName);Console .WriteLine( "性别：" + red.ReaderSex);Console .WriteLine( "所在院系：" + red.ReaderDepartment);Console .WriteLine( "主修专业：" + red.ReaderMajor);Console .Write( "已借图书：");for (int i = 0; i < red.BowPublication.Length-1; i++){if (red.BowPublication[i] !="" ){Console .Write( "" +red.BowPublication[i]);}}Console .WriteLine( "" );Console .WriteLine( "--------------------------------------------------------------------");Console .WriteLine( "" );Console .WriteLine( "是否办理其他业务(y/n)?" );string answer = Console .ReadLine();if (answer == "y" ){ShowMainMenu();}else{Console .WriteLine("结束 " );}}/* 显示新出版物入库的信息*/public void ShowAddPublications(){pub = new Publications();Console .Write( "请输入出版物的编号：" );pub.PublicationIsbn=Console .ReadLine(); Console .Write( "请输入出版物的名称：" ); pub.PublicationName =Console .ReadLine(); Console .Write( "请输入出版物的编者：" ); pub.PublicationAuthor =Console .ReadLine(); Console .Write( "请输入出版物的类型：" ); pub.PublicationType =Console .ReadLine(); pub.PublicationStatus =true ;mag.AddPublications(pub);Console .WriteLine( "新出版物入库成功！"); Console .WriteLine( "是否办理其他业务(y/n)?" ); string answer = Console .ReadLine();if (answer == "y" ){ShowMainMenu();Console .WriteLine();Console .WriteLine();}else{Console .WriteLine("结束 " );}}/* 显示新读者注册的信息*/public void ShowAddReaders(){red = new Readers ();Console .Write( "请输入新注册读者的编号：" );red.ReaderId = Console .ReadLine();Console .Write( "请输入新注册读者的姓名：" );red.ReaderName=Console .ReadLine();Console .Write( "请输入新注册读者的性别：" );red.ReaderSex = Console .ReadLine();Console .Write( "请输入新注册读者的院系：" );red.ReaderDepartment =Console .ReadLine();Console .Write( "请输入新注册读者的专业：" );red.ReaderMajor =Console .ReadLine();for (int i=0;i<10;i++){red.BowPublication[i]="" ;}mag.AddReaders(red);Console .WriteLine( "新读者注册成功！" );Console .WriteLine( "是否办理其他业务(y/n)?" );string answer = Console .ReadLine();if (answer == "y" ){ShowMainMenu();Console .WriteLine();Console .WriteLine();}else{Console .WriteLine("结束 " );}}}}。