Question

我在python中实现了一个链表。但是我的插入操作给出了以下错误。任何人都可以帮忙解决这个问题吗？我的列表将作为第一个节点。后续节点将在插入操作中追加。

输出：

10
Traceback (most recent call last):
  File "z.py", line 45, in <module>
    list_mgmt()
  File "z.py", line 43, in list_mgmt
    ll.display()
  File "z.py", line 32, in display
    print current.get_data()
AttributeError: 'function' object has no attribute 'get_data'

class Node:
   def __init__(self, data):
       self.data = data
       self.nextnode = None

   def get_data(self):
       return self.data

   def get_nextnode(self):
       return self.nextnode

   def set_nextnode(self, node):
       self.nextnode = node

class LinkList:
   def __init__(self):
       self.head = None

   def insert(self, data):
       if self.head == None:
          current = Node(data)
          self.head = current
       else:
          current = self.head
          while current.get_nextnode() is not None:  
              current = current.get_nextnode
          current.set_nextnode(Node(data))

   def display(self):
       current = self.head
       while current is not None:
          print current.get_data()
          current = current.get_nextnode

   #def delete(self, data):
   #def size(self):
   #def search(self, data):

def list_mgmt():
    ll = LinkList()
    ll.insert(10)
    ll.insert(20)
    ll.display()

list_mgmt()

Answer 1

在线：

current = current.get_nextnode

您缺少括号含义＆＃34;调用该函数＆＃34;，此处您只是将函数绑定到current变量，显然导致下一个'function' object has no attribute 'get_data' }。

在python列表中需要帮助

1 个答案: