【发布时间】:2021-07-07 11:41:06
【问题描述】:
class Node:
def __init__(self, data = None, next = None):
self.data = data
self.next = next
class LinkedList:
def __init__(self, node = None):
self.head = node
self.length = 0
def InsertNode(self, data):
newNode = Node()
newNode.data = data
if self.length == 0:
self.head = newNode
else:
newNode.next = self.head
self.head = newNode
self.length += 1
def printList(self):
temp = self.head
while temp != None:
print(temp.data, end = " ")
temp = temp.next
class AddingListNumbers:
def addTwoNumbers(self, list1, list2):
if list1 == None:
return list2
if list2 == None:
return list1
len1 = len2 = 0
head = list1.head
while head != None:
len1 += 1
head = head.next
head = list2.head
while head != None:
len2 += 1
head = head.next
if len1 > len2:
shorter = list2
longer = list1
else:
shorter = list1
longer = list2
sum = None
carry = 0
while shorter != None:
value = shorter.data + longer.data + carry
carry = value / 10
value -= carry * 10
if sum == None:
sum = Node(value)
result = sum
else:
sum.next = Node(value)
sum = sum.next
shorter = shorter.next
longer = longer.next
while longer != None:
value = longer.data + carry
carry = value / 10
value -= carry * 10
sum.next = Node(value)
sum = sum.next
longer = longer.next
if carry != 0:
sum.next = Node(carry)
return result
linkedlist = LinkedList()
linkedlist.InsertNode(19)
linkedlist.InsertNode(14)
linkedlist.InsertNode(11)
linkedlist.InsertNode(9)
linkedlist.InsertNode(6)
linkedlist.InsertNode(5)
linkedlist2 = LinkedList()
linkedlist2.InsertNode(17)
linkedlist2.InsertNode(16)
linkedlist2.InsertNode(13)
linkedlist2.InsertNode(6)
linkedlist2.InsertNode(2)
linkedlist2.InsertNode(1)
linkedlist2.InsertNode(24)
linkedlist2.InsertNode(3)
linkedlist2.InsertNode(11)
list3 = LinkedList()
ResultList = AddingListNumbers()
list3.next = ResultList.addTwoNumbers(linkedlist, linkedlist2)
list3.printList()
我创建了 Node 和 LinkedList 类,然后创建了另一个类添加列表编号来添加列表编号。 我收到一条错误消息:
值 = 较短的数据 + 较长的数据 + 进位 AttributeError: 'LinkedList' 对象没有属性 'data'
我不明白如何调试这个。如何处理属性错误?
【问题讨论】:
标签: python class linked-list attributeerror