轻松创建支持C#索引的属性

using System;

public class SampleCollection<T>
{
    private T[] arr = new T[100];

    public T this[int index]
    {
        get
        {
            return arr[index];
        }
        set
        {
            arr[index] = value;
        }
    }
}

public class Program
{
    public static void Main()
    {
        SampleCollection<string> myCollection = new SampleCollection<string>();

        myCollection[0] = "Hello";
        myCollection[1] = "World";

        Console.WriteLine(myCollection[0]);
        Console.WriteLine(myCollection[1]);
    }
}