Question

用C#中for循环排列个等腰三角形！！！

Answer 1

int lines = 10;//循环次数（腰长）

StringBuilder sb = new StringBuilder();

for (int i = 1; i <= lines; i++)

{

    sb.Append(' ', lines - i);//空白

    sb.Append('*',2*i-1);//星星

    sb.Append("\r\n");//换行

}

Console.WriteLine(sb.ToString());//输出结果

Console.Read();

Answer 2

//哈哈哈，排星号神马的，都已经弱爆了……
            Graphics g = e.Graphics;            
            int height = 100;//高度
            Pen p = new Pen(Color.Black, 1);
            Point a = new Point(10, 110);
            Point b = new Point(a.X + height, a.Y);
            Point c = new Point(a.X, a.Y + height);
            g.DrawLine(p, a,b);
            g.DrawLine(p, a, c);
            g.DrawLine(p, b, c);
            g.DrawString("这是个等腰三角形", new Font("微软雅黑", 10), Brushes.Blue, new Point(a.X , a.Y-20));