添加Lesson9

2025-10-14 22:02:46 +08:00
parent c86de4e6be
commit 47193206ac
5 changed files with 360 additions and 0 deletions
@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
@@ -0,0 +1,174 @@
+namespace Lesson9_顺序存储和链式存储练习
+{
+    class LinkNode<T>
+    {
+        public T value;
+        public LinkNode<T> nextNode;
+        public LinkNode<T> frontNode;
+        public LinkNode(T value)
+        {
+            this.value = value;
+            nextNode = null;
+            frontNode = null;
+        }
+    }
+    class LinkList<T>
+    {
+        private LinkNode<T> head;
+        private LinkNode<T> tail;
+        private int count;
+        public LinkList()
+        {
+            count = 0;
+            head = null;
+            tail = null;
+        }
+        public LinkNode<T> Head
+        {
+            get
+            {
+                return head;
+            }
+        }
+        public LinkNode<T> Tail
+        {
+            get
+            {
+                return tail;
+            }
+        }
+        public int Count
+        {
+            get
+            {
+                return count;
+            }
+        }
+        public void Add(T value)
+        {
+            LinkNode<T> node = new LinkNode<T>(value);
+            if (head == null)
+            {
+                head = node;
+                tail = node;
+                Console.WriteLine("空，已加节点并赋值");
+            }
+            else
+            {
+                tail.nextNode = node;
+                tail.nextNode.frontNode = tail;
+                tail = node;
+                tail.nextNode = null;
+                Console.WriteLine("添加尾部节点");
+            }
+            ++count;
+        }
+        public void PrintAllNodesFront()
+        {
+            if (head == null)
+            {
+                Console.WriteLine("链表为空");
+                return;
+            }
+            LinkNode<T> node = head;
+            while (node != null)
+            {
+                Console.Write(node.value + " ");
+                node = node.nextNode;
+            }
+        }
+        public void PrintAllNodesLast()
+        {
+            if (head == null)
+            {
+                Console.WriteLine("链表为空");
+                return;
+            }
+            LinkNode<T> node = tail;
+            while (node != null)
+            {
+                Console.Write(node.value + " ");
+                node = node.frontNode;
+            }
+        }
+        public void RemoveAt(int index)
+        {
+            if (index < 0 || index >= count)
+            {
+                Console.WriteLine($"目前只有{count}个node,输入无效");
+                return;
+            }
+            int tempCount = 0;
+            LinkNode<T> tempNode = head;
+            while (true)
+            {
+                if (tempCount == index)
+                {
+                    //找到节点
+                    if (tempNode.frontNode != null)
+                    {
+                        tempNode.frontNode.nextNode = tempNode.nextNode;
+                    }
+                    if (tempNode.nextNode != null)
+                    {
+                        tempNode.nextNode.frontNode = tempNode.frontNode;
+                    }
+                    if (index == 0)
+                    {
+                        head = tempNode.nextNode;
+                    }else if (index == count - 1)
+                    {
+                        tail = tail.frontNode;
+                    }
+
+                    count--;
+                    break;
+                }
+                tempNode = tempNode.nextNode;
+                tempCount++;
+            }
+        }
+    }
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            LinkList<int> list = new LinkList<int>();
+            list.Add(1);
+            list.Add(2);
+            list.Add(3);
+            list.Add(4);
+
+            Console.WriteLine("Node数量:");
+            Console.WriteLine(list.Count);
+            
+            Console.WriteLine("-------------------");
+
+            Console.WriteLine("反向遍历");
+            list.PrintAllNodesLast();
+
+            Console.WriteLine();
+            Console.WriteLine("-------------------");
+
+            Console.WriteLine("正向遍历");
+            list.PrintAllNodesFront();//正向遍历
+
+            Console.WriteLine();
+            Console.WriteLine("-------------------");
+
+            Console.WriteLine("删除后正向遍历");
+            list.RemoveAt(0);
+            list.PrintAllNodesFront();//正向遍历
+
+            Console.WriteLine();
+            Console.WriteLine("-------------------");
+
+            Console.WriteLine("删除后反向遍历");
+            list.RemoveAt(1);
+            list.PrintAllNodesFront();//正向遍历
+
+            Console.WriteLine();
+            Console.WriteLine("-------------------");
+        }
+    }
+}