static void Main(string[] args)
        {
            int[] strA ={3,4};
            int[] strB=new int []{1,11};
            Array arr = Array.CreateInstance(Type.GetType("System.Int32"), strA, strB);
            Random r = new Random();
            for (int i = arr.GetLowerBound(0); i < arr.GetUpperBound(0); i++)
            {
                for (int j =arr.GetLowerBound(1) ; j <arr .GetUpperBound (1) ; j++)
                {
                    arr.SetValue((int)r.Next()%100,i,j );
                    Console.WriteLine("arr[{0},{1}]={3}",i,j,arr.GetValue(i,j));
                }
            }
   “Console.WriteLine("arr[{0},{1}]={3}",i,j,arr.GetValue(i,j));”为什么VS报错说有无效参数？？

"arr[{0},{1}]={3}"

你的 {2}  呢  ？