1 Graphics graphics = e.Graphics;
2
3 //绘制实线
4 using (Pen pen = new Pen(Color.Black, 2))
5 {
6 pen.DashStyle = System.Drawing.Drawing2D.DashStyle.Solid; //实现
7 graphics.DrawLine(pen,0,10,100,10);
8 }
9
10 //画出虚线
11 using (Pen pen = new Pen(Color.Black, 2))
12 {
13 pen.DashStyle = System.Drawing.Drawing2D.DashStyle.Dash; //虚线
14 graphics.DrawLine(pen, 0, 15, 100, 15);
15 }
16
17 //画出矩形
18 using (Pen pen = new Pen(Color.Black, 2))
19 {
20 Rectangle rectangle = new Rectangle(2,30,100,50);
21 graphics.DrawRectangle(pen,rectangle);
22 }
23
24 //绘制字符串
25 string str = "Hello 笨男孩!";
26 graphics.DrawString(str, this.Font, Brushes.Black, 2, 100);
27
28 //测量字符串的高度和宽度
29 SizeF szfTitle = graphics.MeasureString(str, this.Font);
30 graphics.DrawString(str, this.Font, Brushes.Black, 2, 200-(int)szfTitle.Height);
31 graphics.DrawString("该字符串高度："+szfTitle.Height+" 字符串宽度："+szfTitle.Width, this.Font, Brushes.Black, 2, 200);
32
33
34
35 //绘制圆
36 using(Pen pen = new Pen(Color.Black,2))
37 {
38 //圆
39 graphics.DrawEllipse(pen,2,230,100,100); //在画板上画椭圆,起始坐标为(10,10),外接矩形的宽为100,高为100 此时就是一个圆
40
41 //椭圆
42 graphics.DrawEllipse(pen, 2, 400, 100, 50); //在画板上画椭圆,起始坐标为(10,10),外接矩形的宽为100,高为50 此时就是一个椭圆
43 }
