本文介绍如何使用Spire.Barcode for .NET来扫描并识别二维码图片中的数据，通过调用BarcodeScanner类提供的Scan(Bitmap image, BarCode Type barcodeType)方法实现。详细代码参考如下内容。

下图是用于测试的二维码图片：

using Spire.Barcode;
using System.Drawing;

namespace ScanQRcode
{
    class Program
    {
        static void Main(string[] args)
        {
            //加载二维码图片
            Image image = Image.FromFile("QRCode.png");
            Bitmap bitmap = new Bitmap(image);

            //识别二维码图片中的数据
            string[] data = BarcodeScanner.Scan(bitmap, BarCodeType.QRCode);
            for (int i = 0; i < data.Length; i++)
            {
                string text = data[i].ToString();
                System.Console.WriteLine(text);
                System.Console.ReadLine();
            }                   
        }
    }
}

Imports Spire.Barcode
Imports System.Drawing

Namespace ScanQRcode
	Class Program
		Private Shared Sub Main(args As String())
			'加载二维码图片
			Dim image__1 As Image = Image.FromFile("QRCode.png")
			Dim bitmap As New Bitmap(image__1)

			'识别二维码图片中的数据
			Dim data As String() = BarcodeScanner.Scan(bitmap, BarCodeType.QRCode)
			For i As Integer = 0 To data.Length - 1
				Dim text As String = data(i).ToString()
				System.Console.WriteLine(text)
				System.Console.ReadLine()
			Next
		End Sub
	End Class
End Namespace

二维码数据读取结果：