如何使用iTextSharp阅读PDF表格数据？

using iTextSharp.text.pdf;
using iTextSharp.text.pdf.parser;

public string ReadPdfTableData(string pdfFilePath)
{
    // 代码将在此处添加
}

PdfReader pdfReader = new PdfReader(pdfFilePath);

for (int pageNumber = 1; pageNumber <= pdfReader.NumberOfPages; pageNumber++)
{
    PdfReaderContentParser pdfReaderContentParser = new PdfReaderContentParser(pdfReader);
    // 代码将在此处添加
}

SimpleTextExtractionStrategy simpleTextExtractionStrategy = new SimpleTextExtractionStrategy();
string tableData = pdfReaderContentParser.ProcessContent(pageNumber, simpleTextExtractionStrategy).ToString();

result += tableData;

pdfReader.Close();

return result;

using iTextSharp.text.pdf;
using iTextSharp.text.pdf.parser;

public string ReadPdfTableData(string pdfFilePath)
{
    string result = "";
    PdfReader pdfReader = new PdfReader(pdfFilePath);

    for (int pageNumber = 1; pageNumber <= pdfReader.NumberOfPages; pageNumber++)
    {
        PdfReaderContentParser pdfReaderContentParser = new PdfReaderContentParser(pdfReader);
        SimpleTextExtractionStrategy simpleTextExtractionStrategy = new SimpleTextExtractionStrategy();
        string tableData = pdfReaderContentParser.ProcessContent(pageNumber, simpleTextExtractionStrategy).ToString();
        result += tableData;
    }

    pdfReader.Close();
    return result;
}