楊輝三角

打印楊輝三角形

代碼實現

 static void Main(string[] args)
        {
            int num = 6;
            int[,] arr = new int[num, num];
            for (int i = 0; i < num; i++)
            {
                for (int k = 0; k < num - i; k++)
                {
                    Console.Write(" ");
                }
                for (int j = 0; j <=i; j++)
                {

                    if (j==0||i==j)
                    {
                       arr[i, j] = 1;
                       Console.Write(arr[i,j]+" ");
                    }
                    else
                    {
                       arr[i, j] = arr[i - 1, j] +        arr[i - 1, j - 1];
                       Console.Write(arr[i,j]+" ");
                    }
                }
                Console.WriteLine();
            }

        }