Array获取维度、元素个数

        static void Main(string[] args)
        {
            int[,] nums = new int[3, 5];
            Console.WriteLine(nums.Length);
            Console.WriteLine(nums.LongLength);
            Console.WriteLine(nums.Rank);
            Console.WriteLine(nums.GetLength(0));
            Console.WriteLine(nums.GetLength(1));
            Console.WriteLine(nums.GetLongLength(0));
            Console.WriteLine(nums.GetLongLength(1));
            Console.WriteLine(nums.GetLowerBound(0));
            Console.WriteLine(nums.GetLowerBound(1));
            Console.WriteLine(nums.GetUpperBound(0));
            Console.WriteLine(nums.GetUpperBound(1));
        }