如何在 C# 中创建队列

原文:https://www . geeksforgeeks . org/如何创建 c-sharp 中的队列/

Queue()构造函数用于初始化 Queue 类的一个新实例，该实例将为空，并将具有默认的初始容量，并使用默认的增长因子。队列表示对象的先进先出集合。当您需要先进先出访问项目时，可以使用它。当您在列表中添加一个项目时，它被称为入队，当您移除一个项目时，它被称为出列。这个班属于系统。集合命名空间并实现 ICollection、IEnumerable 和 ICloneable 接口。

语法:

public Queue ();

重要提示:

  • The capacity of the queue represents the number of elements that the queue can accommodate. As the element increases, it will automatically increase through redistribution.
  • Trimtosize method is used to reduce the queue capacity.
  • When more capacity is needed, the current capacity is multiplied by a number called growth factor .
  • This constructor is an O(1) operation.

例 1:

// C# Program to illustrate how
// to create a Queue
using System;
using System.Collections;

class Geeks {

    // Main Method
    public static void Main(String[] args)
    {

        // qt is the Queue object
        // Queue() is the constructor
        // used to initializes a new 
        // instance of the Queue class
        Queue qt = new Queue();

        // Count property is used to get the
        // number of elements in Queue
        // It will give 0 as no elements 
        // are present currently
        Console.WriteLine(qt.Count);
    }
}

输出:

0

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