Python \u9ad8\u7ea7\u94fe\u63a5\u5217\u8868<\/h1>\n

Python \u9ad8\u7ea7\u94fe\u63a5\u5217\u8868\u8be6\u7ec6\u64cd\u4f5c\u6559\u7a0b<\/span>\n <\/div>\n

\n \u6211\u4eec\u5df2\u7ecf\u5728\u524d\u9762\u7684\u7ae0\u8282\u4e2d\u770b\u5230\u4e86\u94fe\u8868\uff0c\u5176\u4e2d\u53ea\u80fd\u5411\u524d\u79fb\u52a8\u3002\u5728\u672c\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u770b\u5230\u53e6\u4e00\u79cd\u7c7b\u578b\u7684\u94fe\u8868\uff0c\u5176\u4e2d\u53ef\u4ee5\u5411\u524d\u548c\u5411\u540e\u79fb\u52a8\u3002\u8fd9\u6837\u7684\u94fe\u63a5\u5217\u8868\u79f0\u4e3a\u53cc\u91cd\u94fe\u63a5\u5217\u8868\u3002\u4ee5\u4e0b\u662f\u53cc\u5411\u94fe\u8868\u7684\u529f\u80fd\u3002\n <\/div>\n

\u53cc\u94fe\u8868\u5305\u542b\u4e00\u4e2a\u540d\u4e3afirst\u548clast\u7684\u94fe\u63a5\u5143\u7d20\u3002<\/span>
\n \u6bcf\u4e2a\u94fe\u63a5\u5305\u542b\u4e00\u4e2a\u6570\u636e\u5b57\u6bb5\u548c\u4e24\u4e2a\u94fe\u63a5\u5b57\u6bb5\uff0c\u5206\u522b\u79f0\u4e3anext\u548cprev\u3002<\/span>
\n \u6bcf\u4e2a\u94fe\u63a5\u90fd\u4f7f\u7528\u5176\u4e0b\u4e00\u4e2a\u94fe\u63a5\u4e0e\u5176\u4e0b\u4e00\u4e2a\u94fe\u63a5\u94fe\u63a5\u3002<\/span>
\n \u6bcf\u4e2a\u94fe\u63a5\u90fd\u4f7f\u7528\u5176\u5148\u524d\u7684\u94fe\u63a5\u4e0e\u5176\u5148\u524d\u7684\u94fe\u63a5\u94fe\u63a5\u3002<\/span>
\n \u6700\u540e\u4e00\u4e2a\u94fe\u63a5\u5e26\u6709\u4e00\u4e2a\u7a7a\u94fe\u63a5\uff0c\u4ee5\u6807\u8bb0\u5217\u8868\u7684\u7ed3\u5c3e\u3002<\/span> <\/p>\n

\u521b\u5efa\u53cc\u5411\u94fe\u63a5\u5217\u8868<\/h2>\n

\n \u6211\u4eec\u4f7f\u7528Node\u7c7b\u521b\u5efa\u4e00\u4e2a\u53cc\u5411\u94fe\u63a5\u5217\u8868\u3002\u73b0\u5728\uff0c\u6211\u4eec\u4f7f\u7528\u4e0e\u201c\u5355\u94fe\u63a5\u5217\u8868\u201d\u4e2d\u76f8\u540c\u7684\u65b9\u6cd5\uff0c\u4f46\u662f\u9664\u4e86\u8282\u70b9\u4e2d\u5b58\u5728\u7684\u6570\u636e\u4e4b\u5916\uff0c\u8fd8\u5c06\u4f7f\u7528\u5934\u6307\u9488\u548c\u4e0b\u4e00\u4e2a\u6307\u9488\u8fdb\u884c\u6b63\u786e\u5206\u914d\uff0c\u4ee5\u5728\u6bcf\u4e2a\u8282\u70b9\u4e2d\u521b\u5efa\u4e24\u4e2a\u94fe\u63a5\u3002\n <\/div>\n

 # Filename : example.py<\/span>
# Copyright : 2020 By Lidihuo<\/span>
# Author by : www.lidihuo.com<\/span>
# Date : 2020-08-15<\/span>
 class <\/span>Node: 
     def <\/span>__init__(self, data): 
       self.data = data 
       self.next = None 
       self.prev = None 
 class <\/span>doubly_linked_list: 
     def <\/span>__init__(self): 
       self.head = None 
 # Adding data elements 
<\/span>     def <\/span>push(self, NewVal): 
       NewNode = Node(NewVal) 
       NewNode.next = self.head 
        if <\/span>self.head is <\/span> not <\/span>None: 
          self.head.prev = NewNode 
       self.head = NewNode 
 # print <\/span>the Doubly Linked list 
<\/span>     def <\/span>listprint(self, node): 
        while <\/span>(node is <\/span> not <\/span>None): 
          print(node.data), 
          last = node 
          node = node.next 
 dllist = doubly_linked_list() 
 dllist. push<\/span>(12) 
 dllist. push<\/span>(8) 
 dllist. push<\/span>(62) 
 dllist. listprint<\/span>(dllist.head) 
 <\/span><\/code><\/pre>\n<\/p><\/div>\n\n    \u8fd0\u884c\u7ed3\u679c\u5982\u4e0b\uff1a\n  <\/div>\n\n 62 8 12
 <\/span><\/code><\/pre>\n<\/p><\/div>\n\u63d2\u5165\u53cc\u94fe\u8868<\/h2>\n\n    \u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u5c06\u770b\u5230\u5982\u4f55\u4f7f\u7528\u4ee5\u4e0b\u7a0b\u5e8f\u5c06\u8282\u70b9\u63d2\u5165\u5230\u201c\u53cc\u5411\u94fe\u63a5\u5217\u8868\u201d\u4e2d\u3002\u8be5\u7a0b\u5e8f\u4f7f\u7528\u4e00\u79cd\u540d\u4e3ainsert\u7684\u65b9\u6cd5\uff0c\u5c06\u65b0\u8282\u70b9\u63d2\u5165\u5230\u53cc\u5411\u94fe\u8868\u7684\u5f00\u5934\u7684\u7b2c\u4e09\u4e2a\u4f4d\u7f6e\u3002\n  <\/div>\n\n # Filename : example.py<\/span>
# Copyright : 2020 By Lidihuo<\/span>
# Author by : www.lidihuo.com<\/span>
# Date : 2020-08-15<\/span>
 # Create the Node class
<\/span> class <\/span>Node: 
     def <\/span>__init__(self, data): 
       self.data = data 
       self.next = None 
       self.prev = None 
 # Create the doubly linked list
<\/span> class <\/span>doubly_linked_list: 
     def <\/span>__init__(self): 
       self.head = None 
 # Define the push method to add elements 
<\/span>     def <\/span>push(self, NewVal): 
       NewNode = Node(NewVal) 
       NewNode.next = self.head 
        if <\/span>self.head is <\/span> not <\/span>None: 
          self.head.prev = NewNode 
       self.head = NewNode 
 # Define the insert method to insert the element 
<\/span>     def <\/span>insert(self, prev_node, NewVal): 
        if <\/span>prev_node is <\/span>None: 
          return 
       NewNode = Node(NewVal) 
       NewNode.next = prev_node.next 
       prev_node.next = NewNode 
       NewNode.prev = prev_node 
        if <\/span>NewNode.next is <\/span> not <\/span>None: 
          NewNode.next.prev = NewNode 
 # Define the method to print <\/span>the linked list 
<\/span>     def <\/span>listprint(self, node): 
        while <\/span>(node is <\/span> not <\/span>None): 
          print(node.data), 
          last = node 
          node = node.next 
 dllist = doubly_linked_list() 
 dllist. push<\/span>(12) 
 dllist. push<\/span>(8) 
 dllist. push<\/span>(62) 
 dllist. insert<\/span>(dllist.head.next, 13) 
 dllist. listprint<\/span>(dllist.head) 
 <\/span><\/code><\/pre>\n<\/p><\/div>\n\n    \u8fd0\u884c\u7ed3\u679c\u5982\u4e0b\uff1a\n  <\/div>\n\n 62 8 13 12
 <\/span><\/code><\/pre>\n<\/p><\/div>\n\u8ffd\u52a0\u5230\u53cc\u94fe\u8868<\/h2>\n\n    \u8ffd\u52a0\u5230\u53cc\u5411\u94fe\u8868\u5c06\u5728\u6700\u540e\u6dfb\u52a0\u5143\u7d20\u3002\n  <\/div>\n\n # Filename : example.py<\/span>
# Copyright : 2020 By Lidihuo<\/span>
# Author by : www.lidihuo.com<\/span>
# Date : 2020-08-15<\/span>
\"prettyprint <\/span>notranslate\"<\/span>> \n
 \n# Create the node class
<\/span> \nclass <\/span>Node: \n
     \ndef <\/span>__init__(self, data): \n
       self.data = data \n
       self.next = None \n
       self.prev = None \n
 \n# Create the doubly linked list class
<\/span> \nclass <\/span>doubly_linked_list: \n
     \ndef <\/span>__init__(self): \n
       self.head = None \n
 \n# Define the push method to add elements at the begining
<\/span>     \ndef <\/span>push(self, NewVal): \n
       NewNode = Node(NewVal) \n
       NewNode.next = self.head \n
        \nif <\/span>self.head \nis <\/span> \nnot <\/span>None: \n
          self.head.prev = NewNode \n
       self.head = NewNode \n
 \n# Define the append method to add elements at the end
<\/span>     \ndef <\/span>append(self, NewVal): \n
       NewNode = Node(NewVal) \n
       NewNode.next = None \n
        \nif <\/span>self.head \nis <\/span>None: \n
          NewNode.prev = None \n
          self.head = NewNode \n
          return \n
       last = self.head \n
        \nwhile <\/span>(last.next \nis <\/span> \nnot <\/span>None): \n
          last = last.next \n
       last.next = NewNode \n
       NewNode.prev = last \n
       return \n
 \n# Define the method to print
<\/span>     \ndef <\/span>listprint(self, node): \n
        \nwhile <\/span>(node \nis <\/span> \nnot <\/span>None): \n
          print(node.data), \n
          last = node \n
          node = node.next \n
 dllist = doubly_linked_list() \n
 dllist. \npush<\/span>(12) \n
 dllist. \nappend<\/span>(9) \n
 dllist. \npush<\/span>(8) \n
 dllist. \npush<\/span>(62) \n
 dllist. \nappend<\/span>(45) \n
 dllist. \nlistprint<\/span>(dllist.head) \n
<\/code><\/pre>\n<\/p><\/div>\n\n    \u8fd0\u884c\u7ed3\u679c\u5982\u4e0b\uff1a\n  <\/div>\n\n 62 8 12 9 45
 <\/span><\/code><\/pre>\n<\/p><\/div>\n\n    \u8bf7\u6ce8\u610f\u9644\u52a0\u64cd\u4f5c\u7684\u5143\u7d209\u548c45\u7684\u4f4d\u7f6e\u3002\n  <\/div>\n <\/body>
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