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代码如下:
class Node(object):
'''节点'''
def __init__(self,elem):
self.elem = elem
self.next = None #节点初始状态,不知道指向哪儿,就指向空
class SingleLinkList(object):
'''链表'''
def __init__(self, node = None):
self.__head = node #私有属性,初始化空链表,设置默认参数
def travel(self):
'''遍历'''
cur = self.__head
while cur != None:
print(cur.elem, end = " ") #将换行变为空格输出
cur = cur.next
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