using System;
using System.Text.RegularExpressions;
 
public class Test
{
	public static void Main()
	{
		// your code goes here
		string input = "红包（￥2000.00(红包零钱ID:1115)） ";
		input = input.Replace("（","(");
		input = input.Replace("）", ")"); //将括号统一换成半角的
		string pattern = @"\([^\(\)]*(((?<Open>\()[^\(\)]*)+((?<-Open>\))[^\(\)]*)+)*(?(Open)(?!))\)";  //使用递归平衡组匹配嵌套的括号
		string replacement = "###"; //替换成什么写在这里
		Regex rgx = new Regex(pattern);
		string result = rgx.Replace(input, replacement);
		Console.WriteLine(result);
	}
}

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