算法-99乘法表

        //99乘法表的程序
        int[] num = new int[10];
        for (int i = 0; i < 10; i++)
        {
            num[i] = i;
        }
        Console.ForegroundColor = ConsoleColor.Red;
        for (int i = 0; i < 10; i++)
        {
            for (int j = 0; j < i; j++)
            {
                Console.Write("{0}X{1}={2}  ", num[i], num[j], num[i] * num[j]);
                if (num[i] * num[j] < 10)
                {
                    Console.Write(" ");
                }
            }
            Console.WriteLine();
        }
        Console.ReadKey();