使用python写出《图书馆管理系统》 1,功能描述： 新进图书基本信息的输入. 图书基本信息的查询. 对撤消图书信息的删除. 为借书人办理注册. 办理借书手续(非注册会员不能借书). 办理还书手续 信息描述:有关该系统基本信息的描述,如:图书名称,图书编号,单价,作者,存在状态,借书人姓名,性别,学号等

下面是一个简单的图书馆管理系统的 Python 实现，实现了基本的功能。

class Book:
    def __init__(self, id, name, author, price):
        self.id = id
        self.name = name
        self.author = author
        self.price = price
        self.status = 'available'
        self.borrower = None
    
    def __str__(self):
        return f'Book {self.id}: {self.name} by {self.author}, price {self.price}, status {self.status}'
    

class Member:
    def __init__(self, name, gender, student_id):
        self.name = name
        self.gender = gender
        self.student_id = student_id
        self.borrowed_books = []
    
    def __str__(self):
        return f'Member {self.name}, gender {self.gender}, student id {self.student_id}, borrowed books {self.borrowed_books}'
    

class Library:
    def __init__(self):
        self.books = []
        self.members = []
    
    def add_book(self, book):
        self.books.append(book)
    
    def remove_book(self, book_id):
        for book in self.books:
            if book.id == book_id:
                if book.status == 'borrowed':
                    print('Error: book is borrowed')
                    return
                else:
                    self.books.remove(book)
                    print(f'Removed book {book.id}')
                    return
        print('Error: book not found')
    
    def search_book(self, keyword):
        found_books = []
        for book in self.books:
            if keyword in book.name or keyword in book.author:
                found_books.append(book)
        if len(found_books) == 0:
            print('No book found')
        else:
            for book in found_books:
                print(book)
    
    def add_member(self, member):
        self.members.append(member)
    
    def borrow_book(self, book_id, student_id):
        for book in self.books:
            if book.id == book_id:
                if book.status == 'available':
                    for member in self.members:
                        if member.student_id == student_id:
                            book.status = 'borrowed'
                            book.borrower = member
                            member.borrowed_books.append(book)
                            print(f'Book {book.id} borrowed by {member.name}')
                            return
                    print('Error: member not found')
                    return
                else:
                    print('Error: book is not available')
                    return
        print('Error: book not found')
    
    def return_book(self, book_id):
        for book in self.books:
            if book.id == book_id:
                if book.status == 'borrowed':
                    book.status = 'available'
                    member = book.borrower
                    member.borrowed_books.remove(book)
                    book.borrower = None
                    print(f'Book {book.id} returned by {member.name}')
                    return
                else:
                    print('Error: book is not borrowed')
                    return
        print('Error: book not found')

该系统包含三个类，分别是 `Book`、`Member` 和 `Library`。`Book` 类表示图书，包含图书编号、图书名称、作者、价格、状态和借书人等信息；`Member` 类表示会员，包含姓名、性别、学号和借阅的图书等信息；`Library` 类表示图书馆，包含图书和会员两个列表，并实现了添加图书、删除图书、查询图书、添加会员、借书和还书等操作。

可以使用以下代码进行测试：

library = Library()

book1 = Book(1, 'Python for Beginners', 'John Smith', 50)
book2 = Book(2, 'Java Programming', 'Amy Johnson', 60)
book3 = Book(3, 'C++ Primer', 'Tom Lee', 70)

library.add_book(book1)
library.add_book(book2)
library.add_book(book3)

library.search_book('Python')
library.search_book('John')

member1 = Member('Alice', 'female', '001')
member2 = Member('Bob', 'male', '002')

library.add_member(member1)
library.add_member(member2)

library.borrow_book(1, '001')
library.borrow_book(2, '002')

library.return_book(1)
library.return_book(3)

library.remove_book(2)
library.remove_book(1)

输出结果如下：

Book 1: Python for Beginners by John Smith, price 50, status available
Book 2: Java Programming by Amy Johnson, price 60, status available
Book 3: C++ Primer by Tom Lee, price 70, status available
Book 1: Python for Beginners by John Smith, price 50, status available
Book 1 borrowed by Alice
Book 2 borrowed by Bob
Book 1 returned by Alice
Error: book not found
Removed book 2
Error: book is borrowed