C# 打印星号菱形

代码如下

            Console.Write("请输入要打印的行数(奇数):");
            int n = int.Parse(Console.ReadLine()) / 2 + 1; //这样就算出上部分的总行数了

            for (int i = 1; i <= n; i++)
            {
                for (int j = 1; j <= n - i; j++)
                {
                    Console.Write(" ");
                }
                for (int k = 1; k <= 2 * i - 1; k++)
                {
                    Console.Write("*");
                }
                Console.WriteLine();
            }

            for (int i = 1; i < n; i++)
            {
                for (int j = 1; j <= i; j++)
                {
                    Console.Write(" ");
                }
                for (int k = 1; k <= (2 * n - 1) - 2 * i; k++)
                {
                    Console.Write("*");
                }
                Console.WriteLine();
            }

效果如下