python实现单链表的数据结构

好的，可以的。下面是Python实现单链表的代码示例：

class Node: 
    def __init__(self, data=None): 
        self.data = data  
        self.next = None  
        
class LinkedList: 
    def __init__(self):    
        self.head = Node()   
        
    def append(self, data):
        newNode = Node(data)
        cur = self.head
        while cur.next != None:
            cur = cur.next
        cur.next = newNode
        
    def length(self):
        cur = self.head
        total = 0
        while cur.next!=None:
            total+=1
            cur = cur.next
        return total

    def display(self):
        elems = []
        cur_node = self.head
        while cur_node.next != None:
            cur_node = cur_node.next
            elems.append(cur_node.data)
        print(elems)

你可以通过append()方法向链表中添加元素，length()方法获取链表长度，display()方法显示链表元素。

希望对你有帮助！