问在C# Windows phone7中混洗字符串列表

EN

var list = new List<string> { "the", "quick", "brown", "fox" };
list.ShuffleInPlace();

// ...

public static class ListExtensions
{
    public static void ShuffleInPlace<T>(this IList<T> source)
    {
        source.ShuffleInPlace(new Random());
    }

    public static void ShuffleInPlace<T>(this IList<T> source, Random rng)
    {
        if (source == null) throw new ArgumentNullException("source");
        if (rng == null) throw new ArgumentNullException("rng");

        for (int i = 0; i < source.Count - 1; i++)
        {
            int j = rng.Next(i, source.Count);

            T temp = source[j];
            source[j] = source[i];
            source[i] = temp;
        }
    }
}