基于二叉顺序树图书馆书籍管理系统任务书的代码

基于二叉顺序树实现图书管理系统的一种简单思路通常是构建一个树结构，其中每个节点代表一本书，包含书名、作者、ISBN等信息，并且左子节点通常存储比当前节点小的书，右子节点存储更大的书。以下是这个任务的一个简化的伪代码示例：

class Book:
    def __init__(self, title, author, isbn):
        self.title = title
        self.author = author
        self.isbn = isbn
        self.left = None
        self.right = None

class LibraryTree:
    def __init__(self):
        self.root = None

    # 插入书籍
    def insert_book(self, book):
        if not self.root:
            self.root = book
        else:
            self._insert_book_helper(self.root, book)

    def _insert_book_helper(self, current, book):
        if book.isbn < current.isbn:
            if current.left is None:
                current.left = book
            else:
                self._insert_book_helper(current.left, book)
        else:
            if current.right is None:
                current.right = book
            else:
                self._insert_book_helper(current.right, book)

    # 查找书籍
    def search_by_isbn(self, isbn):
        return self._search_book_helper(self.root, isbn)

    def _search_book_helper(self, current, isbn):
        if current and current.isbn == isbn:
            return current
        elif isbn < current.isbn and current.left:
            return self._search_book_helper(current.left, isbn)
        elif isbn > current.isbn and current.right:
            return self._search_book_helper(current.right, isbn)
        else:
            return None

# 使用示例
library = LibraryTree()
book1 = Book("Python入门", "作者A", "123456")
book2 = Book("深入理解计算机系统", "作者B", "789012")
library.insert_book(book1)
library.insert_book(book2)
found_book = library.search_by_isbn("123456")  # 返回book1