实现截图如下图:
面向对象的思想,实现代码:
namespace s1025_面向对象_
{
//使用面向对象的思想构建图书管理系统
/// <summary>
/// 功能:具有图书的增删改查功能;
/// </summary>
//构造图书类
//重载
public class Book
{
private string Name;
private string Author;
private int Price;
public Book()
{
//Console.WriteLine("我是一个没有参数的构造方法");
}
public Book(string name, string author, int price)
{
//Console.WriteLine("我是一个有参数的构造方法");
this.Name = name;
this.Author = author;
this.Price = price;
}
//对c#中属性行为的定义,如果是自动定义,则不能书写后备字段
public string name
{
get { return Name; }
set { Name = value; }
}
public string author
{
get { return Author; }
set { Author = value; }
}
public int price
{
get { return Price; }
set { Price = price; }
}
//属性构造结束
//重写继承的方法,注意签名必须相同
public override string ToString()
{
string str = Name+","+ Author+ "," + Price.ToString();
return str;
}
}
public class BookManager
{
//创建一个列表集合报讯所有的图书
public List<Book> Books = new List<Book>();
public void Init()
{
Console.WriteLine("===========图书管理系统=============");
Console.WriteLine("请选择您需要进行的操作(输入序号即可):");
Console.WriteLine("1.增加");
Console.WriteLine("2.修改");
Console.WriteLine("3.删除");
Console.WriteLine("4.查看");
Console.WriteLine("5.退出");
int num = int.Parse(Console.ReadLine());
switch (num)
{
case 1:
IncreaseBook();
Init();
break;
case 2:
ChangeBook();
Init();
break;
case 3:
DelBook();
Init();
break;
case 4:
LookBook();
Init();
break;
case 5:
Environment.Exit(0);
break;
default:
Console.WriteLine("输入有误,自动退出");
break;
}
}
public void IncreaseBook()
{
Console.WriteLine("============增加图书==============");
Console.WriteLine("图书名称:");
string name=Console.ReadLine();
Console.WriteLine("图书作者:");
string author = Console.ReadLine();
Console.WriteLine("图书的价格:");
int price = int.Parse(Console.ReadLine());
Book book = new Book(name,author,price);
Books.Add(book);
Console.WriteLine("录入成功!");
}
public void DelBook()
{
Console.WriteLine("==============删除图书================");
Console.WriteLine("请输入图书的名字:");
string book = Console.ReadLine();
foreach (var item in Books)
{
if (item.name == book)
{
Books.Remove(item);
return;
}
}
Console.WriteLine("删除成功");
}
public void ChangeBook()
{
string name;
string author;
int price;
Console.WriteLine("=============修改图书================");
Console.WriteLine("请输入图书的名字:");
string book1 = Console.ReadLine();
try
{
foreach (Book item in Books)
{
if (item.name == book1)
{
Console.WriteLine("按照以下序号输入您想修改的条目");
Console.WriteLine("1.名称");
Console.WriteLine("2.作者");
Console.WriteLine("3.价格");
int num = int.Parse(Console.ReadLine());
switch (num)
{
case 1:
Console.WriteLine("请输入您要修改的名称:");
name = Console.ReadLine();
item.name = name;
Console.WriteLine("修改成功");
break;
case 2:
Console.WriteLine("请输入您要修改的作者名字:");
author = Console.ReadLine();
item.author = author;
Console.WriteLine("修改成功");
break;
case 3:
Console.WriteLine("请输入价格:");
price = int.Parse(Console.ReadLine());
item.price = price;
Console.WriteLine("修改成功");
break;
default:
Console.WriteLine("您的输入有误");
break;
}
}
else
{
Console.WriteLine("查找成功,但是有点问题");
}
}
}
catch
{
Console.WriteLine("未查询到");
}
}
public void LookBook()
{
Console.WriteLine("=============图书信息============");
foreach (var item in Books)
{
Console.WriteLine(item);
Console.WriteLine();
}
}
}
class Program
{
static void Main(string[] args)
{
BookManager bookManager = new BookManager();
bookManager.Init();
}
}
}
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