C# 二维数组中找最大数

        static int FindMax(int[][] array)
        {
            int max = -1;
            if (array == null || array.Length == 0)
            {
                return max;
            }
            for (int i = 0; i < array.Length; i++)
            {
                if (array[i] != null)
                {
                    for (int j = 0; j < array[i].Length; j++)
                    {
                        if (array[i][j] >max)
                        {
                            max = array[i][j];
                        }
                    }
                }
            }
            return max;
        }