using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using System.Drawing.Drawing2D;namespace advanced_drawing{  public partial class Form9 : Form  {    public Form9()    {      InitializeComponent();    }    private void Form9_Paint(object sender, PaintEventArgs e)    {      Rectangle rect = new Rectangle(0, 0, 20, 10);      Matrix matrix = new Matrix();      matrix.Scale(2, 3);//Scale和Translate的先后順序      matrix.Translate(10, 20);      //matrix.Translate(10, 20);      //matrix.Scale(2, 3);      Graphics g = e.Graphics;      g.Transform = matrix;      g.FillRectangle(Brushes.Blue, rect);    }  }}