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class Node:
def __init__( self ,dataval = None ):
self .dataval = dataval
self .nextval = None
class SLinkList:
def __init__( self ):
self .headval = None
# 遍历列表
def traversal_slist( self ):
head_node = self .headval
while head_node is not None :
print (head_node.dataval)
head_node = head_node.nextval
# 表头插入结点
def head_insert( self ,newdata):
Newdata = Node(newdata)
Newdata.nextval = self .headval
self .headval = Newdata
# 表尾插入结点
def tail_insert( self ,newdata):
Newdata = Node(newdata)
if self .headval is None :
self .headval = Newdata
return
head_node = self .headval
while head_node.nextval :
head_node = head_node.nextval
head_node.nextval = Newdata
# 在两个数据结点之间插入
def middle_insert( self ,middle_node,newdata):
Newdata = Node(newdata)
if middle_node is None :
return
Newdata.nextval = middle_node.nextval
middle_node.nextval = Newdata
# 删除结点
def remove_node( self ,newdata):
head_node = self .headval
if head_node = = None :
return
if head_node.dataval = = newdata:
self .headval = head_node.nextval
head_node = None
return
while head_node is not None :
prev = head_node
head_node = head_node.nextval
if head_node:
if head_node.dataval = = newdata:
prev.nextval = head_node.nextval
lis = SLinkList()
lis.headval = Node( 'aa' )
ee = Node( 'bb' )
lis.headval.nextval = ee
lis.head_insert( 'cc' )
lis.tail_insert( 'dd' )
lis.middle_insert(ee, "Fri" )
lis.remove_node( 'bb' )
lis.traversal_slist()
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以上就是python操作链表的示例代码的详细内容,更多关于Python链表的资料请关注服务器之家其它相关文章!
原文链接:https://www.cnblogs.com/HHMLXL/p/13589359.html