如何使用异步和多线程

using IronBarCode;
using System;
using System.Collections.Generic;
using System.Threading.Tasks;

using System;
using System.Collections.Generic;
using System.Threading.Tasks;
#endregion
public class async_multithread_async
{
    public async Task codeAsync()
    {
        List<string> imagePaths = new List<string>() { "image1.png", "image2.png" };

        // Barcode reading options
        BarcodeReaderOptions options = new BarcodeReaderOptions()
        {
            ExpectMultipleBarcodes = true
        };

        // Read barcode using Async
        BarcodeResults asyncResult = await BarcodeReader.ReadAsync(imagePaths, options);

        // Print the results to console
        foreach (var result in asyncResult)
        {
            Console.WriteLine(result.ToString());
        }
    

Imports IronBarCode
Imports System
Imports System.Collections.Generic
Imports System.Threading.Tasks

#End Region
Public Class async_multithread_async
	Public Async Function codeAsync() As Task
		Dim imagePaths As New List(Of String)() From {"image1.png", "image2.png"}

		' Barcode reading options
		Dim options As New BarcodeReaderOptions() With {.ExpectMultipleBarcodes = True}

		' Read barcode using Async
		Dim asyncResult As BarcodeResults = Await BarcodeReader.ReadAsync(imagePaths, options)

		' Print the results to console
		For Each result In asyncResult
			Console.WriteLine(result.ToString())
		Next result

using IronBarCode;
using System;
using System.Collections.Generic;
using System.Threading.Tasks;

List<string> imagePaths = new List<string>(){"test1.jpg", "test2.png"};

// Barcode reading options
BarcodeReaderOptions options = new BarcodeReaderOptions()
{
    Multithreaded = true,
    MaxParallelThreads = 4,
    ExpectMultipleBarcodes = true
};

// Read barcode with multithreaded enabled
BarcodeResults results = BarcodeReader.Read(imagePaths, options);

// Print the results to console
foreach (var result in results)
{
    Console.WriteLine(result.ToString());
}

Imports IronBarCode
Imports System
Imports System.Collections.Generic
Imports System.Threading.Tasks

Private imagePaths As New List(Of String)() From {"test1.jpg", "test2.png"}

' Barcode reading options
Private options As New BarcodeReaderOptions() With {
	.Multithreaded = True,
	.MaxParallelThreads = 4,
	.ExpectMultipleBarcodes = True
}

' Read barcode with multithreaded enabled
Private results As BarcodeResults = BarcodeReader.Read(imagePaths, options)

' Print the results to console
For Each result In results
	Console.WriteLine(result.ToString())
Next result