1 using System;
 2 using System.Collections.Generic;
 3 using System.ComponentModel;
 4 using System.Data;
 5 using System.Drawing;
 6 using System.Linq;
 7 using System.Text;
 8 using System.Threading.Tasks;
 9 using System.Windows.Forms;
10 using System.Drawing.Drawing2D;
11 using System.Drawing.Imaging;
12 
13 namespace DrawHS
14 {
15     public partial class DrawHS : Form
16     {
17         public int x = 0, y = 0;//物体坐标
18 
19         public DrawHS()
20         {
21             InitializeComponent();
22         }
23 
24         private void timer1_Tick(object sender, EventArgs e)
25         {
26             x++; y += 10;//运动
27             Refresh();//刷新窗口，刷新之后调用Paint函数
28         }
29 
30         private void DrawHS_Paint(object sender, PaintEventArgs e)
31         {
32             Graphics g = e.Graphics;//绘图
33             Rectangle rect = new Rectangle(x, y, 100, 100);
34             LinearGradientBrush lBrush = new LinearGradientBrush(rect,
35             Color.Red, Color.Yellow, LinearGradientMode.BackwardDiagonal);
36             g.FillRectangle(lBrush, rect); 
37         }
38     }
39 }