C# |从链接列表中删除所有节点
原文:https://www . geeksforgeeks . org/c-sharp-remove-all-nodes-from-linked list/
链接列表<T1T5。清除方法用于从链表中移除所有节点< T >。
语法:
public void Clear ();
下面给出了一些例子，以便更好地理解实现:
例 1:
// C# code to remove all
// nodes from 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);
// Removing all nodes from LinkedList
myList.Clear();
// To get the count of nodes in LinkedList
// after removing all the nodes
Console.WriteLine("Total nodes in myList are : " + myList.Count);
}
}
输出:
Total nodes in myList are : 5
Total nodes in myList are : 0
例 2:
// C# code to remove all
// nodes from 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);
// To get the count of nodes in LinkedList
// before removing all the nodes
Console.WriteLine("Total nodes in myList are : " + myList.Count);
// Removing all nodes from LinkedList
myList.Clear();
// To get the count of nodes in LinkedList
// after removing all the nodes
Console.WriteLine("Total nodes in myList are : " + myList.Count);
}
}
输出:
Total nodes in myList are : 3
Total nodes in myList are : 0
注:
- Count 设置为零，集合元素对其他对象的引用也会被释放。
- 第一个和最后一个设置为空。
- 这个方法是一个 O(n) 运算，其中 n 是 Count。
参考:
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