C#排列一系列的arraylists？

using System;
using System.Collections;

class Program
{
    static void Main()
    {
        ArrayList myArrayList = new ArrayList();

        myArrayList.Add("Hello");
        myArrayList.Add(42);
        myArrayList.Add(3.14);

        Console.WriteLine("The ArrayList contains:");
        foreach (object item in myArrayList)
        {
            Console.WriteLine(item);
        }
    }
}

The ArrayList contains:
Hello
42
3.14

using System;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        List<string> myList = new List<string>();

        myList.Add("Hello");
        myList.Add("World");

        Console.WriteLine("The List contains:");
        foreach (string item in myList)
        {
            Console.WriteLine(item);
        }
    }
}

The List contains:
Hello
World