C# |从链接列表中删除指定节点
原文:https://www . geeksforgeeks . org/c-sharp-从链接中移除指定的节点 istt/
Remove(linked list node<T>)方法用于从 LinkedList < T >中删除指定节点。
语法:
public void Remove (System.Collections.Generic.LinkedListNode<T> node);
在这里, 节点 是要从链表< 中删除的链表节点<T>>。
异常:
- ArgumentNullException : 如果节点为空。
- 无效操作异常:如果节点不在当前链接列表中< T >。
下面给出了一些例子,以便更好地理解实现:
例 1:
// C# code to remove the specified
// node from the LinkedList
using System;
using System.Collections;
using System.Collections.Generic;
class GFG {
// Driver code
public static void Main()
{
// Creating a LinkedList of Integers
LinkedList<int> myList = new LinkedList<int>();
// Adding nodes in LinkedList
myList.AddLast(2);
myList.AddLast(4);
myList.AddLast(6);
myList.AddLast(8);
// To get the count of nodes in LinkedList
// before removing all the nodes
Console.WriteLine("Total nodes in myList are : " + myList.Count);
// Displaying the nodes in LinkedList
foreach(int i in myList)
{
Console.WriteLine(i);
}
// Removing the first node from the LinkedList
myList.Remove(myList.First);
// To get the count of nodes in LinkedList
// after removing all the nodes
Console.WriteLine("Total nodes in myList are : " + myList.Count);
// Displaying the nodes in LinkedList
foreach(int i in myList)
{
Console.WriteLine(i);
}
}
}
输出:
Total nodes in myList are : 4
2
4
6
8
Total nodes in myList are : 3
4
6
8
例 2:
// C# code to remove the specified
// node from the LinkedList
using System;
using System.Collections;
using System.Collections.Generic;
class GFG {
// Driver code
public static void Main()
{
// Creating a LinkedList of Strings
LinkedList<String> myList = new LinkedList<String>();
// Adding nodes in LinkedList
myList.AddLast("A");
myList.AddLast("B");
myList.AddLast("C");
myList.AddLast("D");
myList.AddLast("E");
// To get the count of nodes in LinkedList
// before removing all the nodes
Console.WriteLine("Total nodes in myList are : " + myList.Count);
// Displaying the nodes in LinkedList
foreach(string str in myList)
{
Console.WriteLine(str);
}
// Removing the specified node from the LinkedList
myList.Remove("D");
// To get the count of nodes in LinkedList
// after removing all the nodes
Console.WriteLine("Total nodes in myList are : " + myList.Count);
// Displaying the nodes in LinkedList
foreach(string str in myList)
{
Console.WriteLine(str);
}
}
}
输出:
Total nodes in myList are : 5
A
B
C
D
E
Total nodes in myList are : 4
A
B
C
E
注:此方法为 O(1)运算。
参考:
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