如何在c#中从字符串中删除带有id的div内容？

using System;
using System.Text.RegularExpressions;

class Program
{
    static void Main()
    {
        string input = "<div id=\"div1\">This is div 1.</div><div id=\"div2\">This is div 2.</div>";

        // 使用正则表达式匹配带有id的div标签
        string pattern = "<div\\s+id=\"[^\"]+\">[^<]*</div>";
        string output = Regex.Replace(input, pattern, "");

        Console.WriteLine(output);
    }
}