将节点类放入链表类python

# 节点类
class Node:
    def __init__(self, data):
        self.data = data
        self.next = None

# 链表类
class LinkedList:
    def __init__(self):
        self.head = None

    # 在链表末尾添加节点
    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

    # 在链表头部插入节点
    def prepend(self, data):
        new_node = Node(data)
        new_node.next = self.head
        self.head = new_node

    # 打印链表
    def print_list(self):
        current = self.head
        while current:
            print(current.data)
            current = current.next

# 创建链表对象
my_list = LinkedList()

# 在链表末尾添加节点
my_list.append(1)
my_list.append(2)
my_list.append(3)

# 在链表头部插入节点
my_list.prepend(0)

# 打印链表
my_list.print_list()

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