for循环-乱写乱写

 

 1 {
                for (int i = 1; i <= 9; i++)
                {
                    for (int j = 1; j <= i; j++)
                    {
                        Console.Write($"{j}*{i}={j*i} ");

                    }
                    Console.WriteLine();

                }
                Console.WriteLine();
                {
                    for (int i = 9; i >=1; i--)
                    {
                        for (int j =1; j <=i; j++)
                        {
                            Console.Write($"{j}*{i}={j * i} ");
                        }
                        Console.WriteLine();
                    }
                }
            }