相关代码：

# @Time: 2024/1/23 16:16
# @Author: 马龙强
# @File: 图书管理系统.py
# @software: PyCharm
class Book():
    def __init__(self,name,auther,status,bookindex):
        self.name = name
        self.auther = auther
        self.status = status
        self.bookindex  = bookindex

    def __str__(self):
        if self.status == 1:
            stats = '未借出'
        elif self.status == 0:
            stats = '已借出'
        else:
            stats = '状态异常'
        return '书名：《{}》,作者：{},状态：<{}>,位置：{}'.format(self.name,self.auther,self.status,self.bookindex)

class BookMange():
    books = []

    def start(self):
        self.books.append(Book('斗罗大陆', '唐家三少', 1, 'ISO9001'))
        self.books.append(Book('程序设计', '嘿嘿嘿嘿', 1, 'ISO9002'))
        self.books.append(Book('感冒颗粒', '哈哈哈哈', 1, 'ISO9003'))
    def Menu(self):
        self.start()
        while True:
            print("""
                        图书管理系统
            1.查询图书
            2.增加图书
            3.借阅图书
            4.归还图书
            5.退出系统
            """)
            choice = input('请选择：')

            if choice == '1':
                self.showallbook()
            elif choice == '2':
                self.addbook()
            elif choice == '3':
                self.borrowBook()
            elif choice == '4':
                self.returnbook()
            elif choice == '5':
                print('欢迎下次使用！！！！')
                break
            else:
                print('请输入正确号码<1-5>')

    def showallbook(self):
        for book in self.books:
            print(book)

    def addbook(self):
        name = input('图书名字:')
        auther = input('作者:')
        bookindex = input('位置:')
        self.books.append(Book(name,auther,1,bookindex))
        print('图书《{}》增加成功！'.format(name))

    def checkbook(self,name):
        for book in self.books:
            if book.name == name:
                return book
        else:
            return None

    def borrowBook(self):
        name = input('借阅图书名称：')
        ret = self.checkbook(name)

        if ret:
            if ret.status == 0:
                print(f'书籍《{name}》已借出！')
            else:
                ret.status = 0
                print(f'书籍《{name}》借阅成功！')
        else:
            print(f'书籍《{name}》不存在！')

    def returnbook(self):
        name = input('归还图书名称：')
        ret = self.checkbook(name)

        if ret:
            if ret.status == 0:
                ret.status = 1
                print(f'书籍《{name}》已归还！')
            else:
                print(f'书籍《{name}》未借出！')
        else:
            print(f'书籍《{name}》不存在！')


manager = BookMange()
manager.Menu()

一、查询图书

二、增加图书

三、借阅图书

四、归还图书

五、退出系统