可以使用Python中的类来实现双向链表，具体实现方法可以参考以下代码： ```python class Node: def __init__(self, data): self.data = data self.prev = None self.next = None class DoublyLinkedList: def __init__(self): self.head = None def append(self, data): new_node = Node(data) if self.head is None: self.head = new_node else: current = self.head while current.next: current = current.next current.next = new_node new_node.prev = current def prepend(self, data): new_node = Node(data) if self.head is None: self.head = new_node else: self.head.prev = new_node new_node.next = self.head self.head = new_node def print_list(self): current = self.head while current: print(current.data) current = current.next ``` 以上代码实现了双向链表的基本操作，包括添加节点、在头部添加节点和打印链表。