C# 面向对象例题 -- 图书管理系统

图书管理系统

请利用面向对象分析实现图片管理系统，具有录入，查询 ，删除，显示所有图书信息功能。

      class Program
        {
      static void Main(string[] args)
       {
       BookManager bm = new BookManager();
       bm.Init();
       }
        }
       class Book
        {
      /// <summary>
      /// 当一个对象被创建时，必须执行Book（构造函数)
      /// </summary>
      public Book()
       {
       }
      public Book(string name, string author, int price)
       {
      this._name = name;
      this._author = author;
      this._price = price;
       }
      private string _name;
      public string name { get { return _name; } }
      private string _author;
      public string Author { get { return _author; } }
      private int _price;
      public int Price { get { return _price; } }
      public override string ToString()
       {
      return "<<" + name + ">> " + _author + " " + Price + "元";
       }
        }
       class BookManager
        {
      public List<Book> list = new List<Book>();
      public void Init()
       {
      ///Console.Clear();
       Console.WriteLine("=====图书管理系统====");
       Console.WriteLine("1. 录入");
       Console.WriteLine("2. 查询");
       Console.WriteLine("3. 删除");
       Console.WriteLine("4. 显示所有图书");
       Console.WriteLine("5. 退出");
       Console.WriteLine("=====================");
       Console.WriteLine("");
       Console.Write("请输入功能序号:");
      int action = int.Parse(Console.ReadLine());
      switch (action)
       {
      case 1:
       Enter();
       Init();
      break;
      case 2:
       Find();
       Init();
      break;
      case 3:
       Dele();
       Init();
      break;
      case 4:
       ShowAll();
       Init();
      break;
      case 5:
       Environment.Exit(0);
      break;
       }
       }
      public void Enter()
       {
       Console.Write("请输入书名:");
      string bookname = Console.ReadLine();
       Console.Write("请输入作者:");
      string bookauthor = Console.ReadLine();
       Console.Write("请输入价格:");
      int bookprice = int.Parse(Console.ReadLine());
      //利用自己定义的构造函数创建Book对象
       Book book = new Book(bookname, bookauthor, bookprice);
       Console.WriteLine("书名:" + book.name);
       list.Add(book);
       Console.WriteLine("图书录入成功!");
       }
      public void Find()
       {
       Console.Write("请输入要查询的书名:");
      string name = Console.ReadLine();
       Console.WriteLine("======查询结果如下======");
      foreach (Book book in list)
       {
      if (book.name == name)
       {
       Console.WriteLine(book);
       }
       Console.WriteLine();
       }
       Console.WriteLine();
       }
      public void Dele()
       {
       Console.Write("请输入要删除的书名:");
      string name = Console.ReadLine();
      foreach (Book book in list)
       {
      if (book.name == name)
       {
       list.Remove(book);
      return;
       }
       }
       }
      public void ShowAll()
       {
      foreach (Book book in list)
       {
       Console.WriteLine(book);
       Console.WriteLine();
       }
       }
        }
  
 

文章来源: czhenya.blog.csdn.net，作者：陈言必行，版权归原作者所有，如需转载，请联系作者。

原文链接：czhenya.blog.csdn.net/article/details/77890415