菱形算法

来源：互联网发布：怎么防止淘宝店铺关闭编辑：程序博客网时间：2024/05/17 06:22

输出结果:

                *
             * * *
          * * * * *
       * * * * * * *
          * * * * *
             * * *
                *
算法:
     public void PrintLinXing(int num)
        {
            if (num % 2 == 0)
            {
                num--;
            }
            for (int r = 0; r <= num / 2; r++)
            {
                int mid = num / 2 + 1;
                int begin = mid - r;
                int ed = mid + r;
                for (int c = 0; c <= ed; c++)
                {
                    if (c < begin)
                        Console.Write( "   ");
                    else
                        Console.Write( "* ");
                }
                Console.Write("/n");
            }
            for (int r = 0; r <= num / 2; r++)
            {
                int mid = num / 2 + 1;
                int begin = r + 1;
                int ed = num - r - 1;
                for (int c = -1; c < ed; c++)
                {
                    if (c < begin)
                        Console.Write("   ");
                    else
                        Console.Write("* ");
                }
                Console.Write("/n");
            }
        }