检查代码:class Node: def init(self, data): self.data = data self.prev = None self.next = None Class DoublyLinkedlist: # def init(self) self.head = None def remove(self,item): current = self.head previous = None found = False while not found: if current.getData() == item found = True else: previous = current current = current.getNext() if previous == None: self.head = current.getNext() current.prev = None else: previous.setNext(current.getNext()) current.prev = previous
时间: 2023-05-20 08:03:53 浏览: 56
这段代码定义了两个类,一个是Node类,一个是DoublyLinkedlist类。Node类有三个属性,分别是data、prev和next,其中data表示节点存储的数据,prev表示前一个节点,next表示后一个节点。DoublyLinkedlist类是双向链表类,用于存储Node节点。
相关问题
检查代码并修改:class Node: def init(self, data): self.data = data self.prev = None self.next = None Class DoublyLinkedList: # def init(self) self.head = None def remove(self,item): current = self.head previous = None found = False while not found: if current.getData() == item found = True else: previous = current current = current.getNext() if previous == None: self.head = current.getNext() current.prev = None else: previous.setNext(current.getNext()) current.prev = previous
class Node:
def __init__(self, data):
self.data = data
self.prev = None
self.next = None
class DoublyLinkedList:
def __init__(self):
self.head = None
self.tail = None
def add_node(self, data):
new_node = Node(data)
if self.head is None:
self.head = new_node
self.tail = new_node
else:
new_node.prev = self.tail
self.tail.next = new_node
self.tail = new_node
def remove_node(self, node):
if node == self.head:
self.head = node.next
self.head.prev = None
elif node == self.tail:
self.tail = node.prev
self.tail.next = None
else:
node.prev.next = node.next
node.next.prev = node.prev
def print_list(self):
current_node = self.head
while current_node:
print(current_node.data)
current_node = current_node.next
检查代码:class Node: def _init_(self, data): self.data = data self.prev = None self.next = None Class DoublyLinkedlist: # def _init_(self) self.head = None def remove(self,item): #维护上一个节点的后置指针和下一个节点的前置指针 current = self.head #从表头开始循环查找需要删除的数据项 previous = None found = False while not found: if current.getData() == item found = True else: previous = current current = current.getNext() if previous == None: self.head = current.getNext() current.prev = None else: previous.setNext(current.getNext()) current.prev = previous
这段代码定义了两个类,一个是Node类,一个是DoublyLinkedlist类。Node类有三个属性,分别是data、prev和next,其中data表示节点的数据,prev表示前一个节点,next表示后一个节点。DoublyLinkedlist类是双向链表类,用于管理Node节点。