如何使用C#将字符串中的每个字符更改为特定的符号？

string inputString = "Hello World";

char[] symbols = { '#', '$', '@' };

string outputString = "";
foreach (char c in inputString)
{
    int index = new Random().Next(0, symbols.Length);
    outputString += symbols[index];
}

Console.WriteLine(outputString);

using System;

namespace StringManipulation
{
    class Program
    {
        static void Main(string[] args)
        {
            string inputString = "Hello World";
            char[] symbols = { '#', '$', '@' };

            string outputString = "";
            foreach (char c in inputString)
            {
                int index = new Random().Next(0, symbols.Length);
                outputString += symbols[index];
            }

            Console.WriteLine(outputString);
        }
    }
}