使用 .NET Regex Tester 测试您的正则表达式模式

using IronXL;
using System;
using System.Text.RegularExpressions;

class Program
{
    static void Main()
    {
        // Regex pattern to match email addresses
        string pattern = @"\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b";

        // Load Excel file using IronXL
        WorkBook workbook = WorkBook.Load("datatable.xlsx");
        WorkSheet workSheet = workbook.WorkSheets[0];

        // Iterate through the specified range of cells and find matches
        foreach (var cell in workSheet["A2:A10"])
        {
            string cellValue = cell.Text;

            // Use regex to find matches within the cell text
            MatchCollection matches = Regex.Matches(cellValue, pattern);
            foreach (Match match in matches)
            {
                // Output each found match with its cell address
                Console.WriteLine($"Found match in Excel at {cell.AddressString}: {match.Value}");
            }
        }
    }
}

Imports IronXL
Imports System
Imports System.Text.RegularExpressions

Friend Class Program
	Shared Sub Main()
		' Regex pattern to match email addresses
		Dim pattern As String = "\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b"

		' Load Excel file using IronXL
		Dim workbook As WorkBook = WorkBook.Load("datatable.xlsx")
		Dim workSheet As WorkSheet = workbook.WorkSheets(0)

		' Iterate through the specified range of cells and find matches
		For Each cell In workSheet("A2:A10")
			Dim cellValue As String = cell.Text

			' Use regex to find matches within the cell text
			Dim matches As MatchCollection = Regex.Matches(cellValue, pattern)
			For Each match As Match In matches
				' Output each found match with its cell address
				Console.WriteLine($"Found match in Excel at {cell.AddressString}: {match.Value}")
			Next match
		Next cell
	End Sub
End Class