asp.net中C#正则表达式之查找替换

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

namespace CSharpTest
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine(new Program().regTest());
            Console.ReadLine();
        }

        public String regTest()
        {
            String source = "test";

            String result = "正则表达式测试rn";

            //匹配
            result += "匹配：" + Regex.IsMatch(source, @"[sS]*?", RegexOptions.IgnoreCase) + "rn";

            //查找
            result += "查找：" + Regex.Match(source, @"]*?>.*?", RegexOptions.IgnoreCase).Groups[0].Value + "rn";

            // 替换
            result += "替换：" + Regex.Replace(source, @"]*?>.*?", "", RegexOptions.IgnoreCase) + "rn";

            return result;
        }
    }
}