C# 队列（开发人员如何使用）

using System;
using System.Collections.Generic;
class Program
{
    static void Main()
    {   
        // create an empty queue
        Queue<int> standardQueue = new Queue<int>();
        standardQueue.Enqueue(10);
        standardQueue.Enqueue(20);
        standardQueue.Enqueue(30);
        while (standardQueue.Count > 0)
        {
            int element = standardQueue.Dequeue();
            Console.WriteLine($"Dequeued: {element}");
        }
    }
}

Imports System
Imports System.Collections.Generic
Friend Class Program
	Shared Sub Main()
		' create an empty queue
		Dim standardQueue As New Queue(Of Integer)()
		standardQueue.Enqueue(10)
		standardQueue.Enqueue(20)
		standardQueue.Enqueue(30)
		Do While standardQueue.Count > 0
			Dim element As Integer = standardQueue.Dequeue()
			Console.WriteLine($"Dequeued: {element}")
		Loop
	End Sub
End Class

using System;
using System.Collections.Generic;
class Program
{    
    static void Main()
    {
        SortedSet<int> priorityQueue = new SortedSet<int>();
        priorityQueue.Add(30);
        priorityQueue.Add(10);
        priorityQueue.Add(20);
        while (priorityQueue.Count > 0)
        {
            int element = priorityQueue.Min;
            priorityQueue.Remove(element);
            Console.WriteLine($"Priority Queue Dequeued: {element}");
        }
    }
}

Imports System
Imports System.Collections.Generic
Friend Class Program
	Shared Sub Main()
		Dim priorityQueue As New SortedSet(Of Integer)()
		priorityQueue.Add(30)
		priorityQueue.Add(10)
		priorityQueue.Add(20)
		Do While priorityQueue.Count > 0
			Dim element As Integer = AddressOf priorityQueue.Min
			priorityQueue.Remove(element)
			Console.WriteLine($"Priority Queue Dequeued: {element}")
		Loop
	End Sub
End Class

using System;
// Queue class
class CircularQueue
{
    private int[] array;
    private int front, rear, size;
    public CircularQueue(int size)
    {
        this.size = size;
        array = new int[size];
        front = rear = -1;
    }

    // enqueue method
    public void Enqueue(int item)
    {
        if ((front == 0 && rear == size - 1) 
 (rear == (front - 1) % (size - 1)))
        {
            Console.WriteLine("Queue is full");
            return;
        }
        else if (front == -1)
        {
            front = rear = 0;
            array[rear] = item;
        }
        else if (rear == size - 1 && front != 0)
        {
            rear = 0;
            array[rear] = item;
        }
        else
        {
            rear++;
            array[rear] = item;
        }
    }
    public int Dequeue()
    {
        if (front == -1)
        {
            Console.WriteLine("Queue is empty");
            return -1;
        }
        int item = array[front];
        array[front] = -1;
        if (front == rear)
            front = rear = -1;
        else if (front == size - 1)
            front = 0;
        else
            front++;
        return item;
    }
}
class Program
{
    static void Main()
    {   
        // specified initial capacity 5
        CircularQueue circularQueue = new CircularQueue(5);
        circularQueue.Enqueue(10);
        circularQueue.Enqueue(20);
        circularQueue.Enqueue(30);
        Console.WriteLine($"Circular Queue Dequeued: {circularQueue.Dequeue()}");
        Console.WriteLine($"Circular Queue Dequeued: {circularQueue.Dequeue()}");
    }
}

Imports System
' Queue class
Friend Class CircularQueue
	Private array() As Integer
	Private front, rear, size As Integer
	Public Sub New(ByVal size As Integer)
		Me.size = size
		array = New Integer(size - 1){}
'INSTANT VB WARNING: An assignment within expression was extracted from the following statement:
'ORIGINAL LINE: front = rear = -1;
		rear = -1
		front = rear
	End Sub

	' enqueue method
	Public Sub Enqueue(ByVal item As Integer)
		If (front = 0 AndAlso rear = size - 1)(rear = (front - 1) Mod (size - 1)) Then
			Console.WriteLine("Queue is full")
			Return
		ElseIf front = -1 Then
'INSTANT VB WARNING: An assignment within expression was extracted from the following statement:
'ORIGINAL LINE: front = rear = 0;
			rear = 0
			front = rear
			array(rear) = item
		ElseIf rear = size - 1 AndAlso front <> 0 Then
			rear = 0
			array(rear) = item
		Else
			rear += 1
			array(rear) = item
		End If
	End Sub
	Public Function Dequeue() As Integer
		If front = -1 Then
			Console.WriteLine("Queue is empty")
			Return -1
		End If
		Dim item As Integer = array(front)
		array(front) = -1
		If front = rear Then
'INSTANT VB WARNING: An assignment within expression was extracted from the following statement:
'ORIGINAL LINE: front = rear = -1;
			rear = -1
			front = rear
		ElseIf front = size - 1 Then
			front = 0
		Else
			front += 1
		End If
		Return item
	End Function
End Class
Friend Class Program
	Shared Sub Main()
		' specified initial capacity 5
		Dim circularQueue As New CircularQueue(5)
		circularQueue.Enqueue(10)
		circularQueue.Enqueue(20)
		circularQueue.Enqueue(30)
		Console.WriteLine($"Circular Queue Dequeued: {circularQueue.Dequeue()}")
		Console.WriteLine($"Circular Queue Dequeued: {circularQueue.Dequeue()}")
	End Sub
End Class

using IronPdf;
using System;
using System.Collections.Generic;
class PdfGenerator
{
    static void Main()
    {
        // Create a C# Queue to store user requests
        Queue<string> userRequests = new Queue<string>();

        // Simulate user requests being added to the queue
        userRequests.Enqueue("Generate PDF for User 1");
        userRequests.Enqueue("Generate PDF for User 2");
        userRequests.Enqueue("Generate PDF for User 3");

        // Process requests and generate PDFs
        while (userRequests.Count > 0)
        {
            string request = userRequests.Dequeue();
            GeneratePdf(request);
        }
    }
    static void GeneratePdf(string userRequest)
    {
        // Use IronPDF to generate PDF based on user request
        var Renderer = new HtmlToPdf();
        var PDF = Renderer.RenderHtmlAsPdf($"<h1>{userRequest}</h1>");

        // Save the generated PDF
        PDF.SaveAs($"{userRequest.Replace(" ", "_")}.pdf");
    }
}

Imports IronPdf
Imports System
Imports System.Collections.Generic
Friend Class PdfGenerator
	Shared Sub Main()
		' Create a C# Queue to store user requests
		Dim userRequests As New Queue(Of String)()

		' Simulate user requests being added to the queue
		userRequests.Enqueue("Generate PDF for User 1")
		userRequests.Enqueue("Generate PDF for User 2")
		userRequests.Enqueue("Generate PDF for User 3")

		' Process requests and generate PDFs
		Do While userRequests.Count > 0
			Dim request As String = userRequests.Dequeue()
			GeneratePdf(request)
		Loop
	End Sub
	Private Shared Sub GeneratePdf(ByVal userRequest As String)
		' Use IronPDF to generate PDF based on user request
		Dim Renderer = New HtmlToPdf()
		Dim PDF = Renderer.RenderHtmlAsPdf($"<h1>{userRequest}</h1>")

		' Save the generated PDF
		PDF.SaveAs($"{userRequest.Replace(" ", "_")}.pdf")
	End Sub
End Class