在.net中运行多个正则表达式的有效方法

using System;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

public class Program
{
    public static void Main()
    {
        string[] patterns = { "a+", "b+", "c+" };
        string input = "aaa bbb ccc";

        Parallel.ForEach(patterns, pattern =>
        {
            Regex regex = new Regex(pattern);
            MatchCollection matches = regex.Matches(input);

            Console.WriteLine("Pattern: {0}", pattern);
            foreach (Match match in matches)
            {
                Console.WriteLine("Match: {0}", match.Value);
            }
        });
    }
}