C#方法可以返回一个方法吗？

using System;

class Program
{
    public delegate int MyDelegate(int x);

    public static int Square(int x)
    {
        return x * x;
    }

    public static int Triple(int x)
    {
        return x * 3;
    }

    public static MyDelegate ReturnMethod(string methodName)
    {
        switch (methodName)
        {
            case "Square":
                return Square;
            case "Triple":
                return Triple;
            default:
                return null;
        }
    }

    static void Main(string[] args)
    {
        MyDelegate myDelegate = ReturnMethod("Square");
        Console.WriteLine(myDelegate(5)); // 输出 25

        myDelegate = ReturnMethod("Triple");
        Console.WriteLine(myDelegate(5)); // 输出 15
    }
}