如何遍历维数和各维上限未定的多维数组

static void ArrEnum(Array arr, Action<Int32[]> func)
{
    Int32[] ix = new Int32[arr.Rank];
    Int32 rank = 0;

    for (int i = 0; i < arr.Length; i++)
    {
        // 当前层以下都清零
        for (int j = rank + 1; j < arr.Rank; j++)
        {
            ix[j] = 0;
        }

        // 设置为最底层
        rank = arr.Rank - 1;

        //do something
        //arr.SetValue(i, ix);
        func(ix);

        // 当前层递加
        ix[rank]++;

        // 如果超过上限，则减少层次
        while (ix[rank] >= arr.GetLength(rank))
        {
            rank--;
            if (rank < 0) break;
            ix[rank]++;
        }
    }
}

static void Test2()
{
    Int32[, , ,] arr = new Int32[24, 24, 24, 24];

    Int32 n=1;
    ArrEnum(arr, ix => arr.SetValue(n++, ix));
    ArrEnum(arr, delegate(Int32[] ix)
    {
        Console.Write("[");
        for (int i = 0; i < ix.Length; i++)
        {
            if (i > 0) Console.Write(", ");
            Console.Write(ix[i]);
        }
        Console.Write("]\t");
        Console.WriteLine(arr.GetValue(ix));
    });
}