C# |在队列末端添加对象–入队操作

原文:https://www . geeksforgeeks . org/c-sharp-将对象添加到队列末端-排队-操作/

队列代表一个 先进先出 集合的对象。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，它被称为出队。

排队< T >。入队(T)方法用于将对象添加到队列的末尾< T >。

属性:

入队在队列末尾添加一个元素。
出列从队列开始处移除最旧的元素。
Peek 返回队列开始处最早的元素，但不将其从队列中移除。
队列的容量是队列可以容纳的元素数量。
当元素添加到队列中时，容量会根据需要通过重新分配内部阵列来自动增加。
队列接受 null 作为引用类型的有效值，并允许重复元素。

语法:

void Enqueue(object obj);

Enqueue()方法在队列的末尾插入值。

示例:

// C# code to add an object
// to the end of the Queue
using System;
using System.Collections.Generic;

class GFG {

    // Driver code
    public static void Main()
    {

        // Creating a Queue of strings
        Queue<string> myQueue = new Queue<string>();

        // Inserting the elements into the Queue
        myQueue.Enqueue("one");

        // Displaying the count of elements
        // contained in the Queue
        Console.Write("Total number of elements in the Queue are : ");

        Console.WriteLine(myQueue.Count);

        myQueue.Enqueue("two");

        // Displaying the count of elements
        // contained in the Queue
        Console.Write("Total number of elements in the Queue are : ");

        Console.WriteLine(myQueue.Count);

        myQueue.Enqueue("three");

        // Displaying the count of elements
        // contained in the Queue
        Console.Write("Total number of elements in the Queue are : ");

        Console.WriteLine(myQueue.Count);

        myQueue.Enqueue("four");

        // Displaying the count of elements
        // contained in the Queue
        Console.Write("Total number of elements in the Queue are : ");

        Console.WriteLine(myQueue.Count);

        myQueue.Enqueue("five");

        // Displaying the count of elements
        // contained in the Queue
        Console.Write("Total number of elements in the Queue are : ");

        Console.WriteLine(myQueue.Count);

        myQueue.Enqueue("six");

        // Displaying the count of elements
        // contained in the Queue
        Console.Write("Total number of elements in the Queue are : ");

        Console.WriteLine(myQueue.Count);
    }
}

Output:

Total number of elements in the Queue are : 1
Total number of elements in the Queue are : 2
Total number of elements in the Queue are : 3
Total number of elements in the Queue are : 4
Total number of elements in the Queue are : 5
Total number of elements in the Queue are : 6

参考:

https://docs . Microsoft . com/en-us/dotnet/API/system . collections . generic . queue-1 . enqueue？view = net framework-4 . 7 . 2 # System _ Collections _ Generic _ Queue _ 1 _ Enqueue _ 0 _

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