C#螺旋工具包如何在点与点之间绘制矩形棱柱？

using System;
using System.Drawing;
using System.Windows.Forms;

namespace DrawingExample
{
    public partial class MainForm : Form
    {
        public MainForm()
        {
            InitializeComponent();
        }

        protected override void OnPaint(PaintEventArgs e)
        {
            base.OnPaint(e);

            Graphics g = e.Graphics;
            Pen pen = new Pen(Color.Black);

            // 定义点与点之间的坐标
            Point point1 = new Point(50, 50);
            Point point2 = new Point(100, 50);
            Point point3 = new Point(100, 100);
            Point point4 = new Point(50, 100);

            // 绘制矩形棱柱
            g.DrawLine(pen, point1, point2);
            g.DrawLine(pen, point2, point3);
            g.DrawLine(pen, point3, point4);
            g.DrawLine(pen, point4, point1);
            g.DrawLine(pen, point1, point3);
            g.DrawLine(pen, point2, point4);
        }
    }

    static class Program
    {
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new MainForm());
        }
    }
}