如何从多语言账单中提取发票数据

string[] invoiceFiles = Directory.GetFiles("./invoices_multilingual", "*.pdf");
// Map file to language for each supplier or region
Dictionary<string, Language> invoiceLanguages = new Dictionary<string, Language>
{
    { "invoice1_fr.pdf", Language.French },
    { "invoice2_es.pdf", Language.Spanish },
    { "invoice3_cn.pdf", Language.Chinese },
};

InvoiceRecognitionSettings settings = new InvoiceRecognitionSettings();
AsposeOcr ocr = new AsposeOcr();
foreach (var kvp in invoiceLanguages)
{
    settings.Language = kvp.Value;
    OcrInput input = new OcrInput(InputType.PDF);
    input.Add(kvp.Key);
    var results = ocr.RecognizeInvoice(input, settings);
    // Extract and process fields
}

string fullText = results[0].RecognitionText;
// Use field parsing logic as in prior articles

using (var writer = new StreamWriter("invoice_multilingual.csv", false, Encoding.UTF8))
{
    writer.WriteLine("File,Vendor,Date,Total,Language");
    // Loop through results and write data
}