C#：绘制奥运五环旗

奥运五环旗"/>

C#：绘制奥运五环旗

窗体设计

新建任意一个窗体，然后修改窗体的Paint事件即可。

事件代码

using System.Drawing;
using System.Windows.Forms;namespace S11
{public partial class 绘图窗体 : Form{public 绘图窗体(){InitializeComponent();}private void 绘图窗体_Paint(object sender, PaintEventArgs e){// 首相创建一个Graphics对象，并设置绘图所用的单位为像素Graphics g = CreateGraphics();g.PageUnit = GraphicsUnit.Pixel;// 创建一支红色的笔，用于绘制旗杆和旗身Pen RedPen = new Pen(Color.Red, 6);//绘制旗杆g.DrawLine(RedPen, 40, 15, 40, 1000);//绘制旗身g.DrawBezier(RedPen, new PointF(40, 15), new PointF(100, 40), new PointF(250, 15), new PointF(350, 35));g.DrawBezier(RedPen, new PointF(40, 215), new PointF(100, 240), new PointF(250, 215), new PointF(350, 235));g.DrawLine(RedPen,new PointF(350, 35), new PointF(350, 235));RedPen.Dispose();// 使用完红笔后销毁以返还系统资源// 绘制五环：每次构造一支不同颜色的笔，使用后立即销毁减少系统资源消耗Pen NewRedPen = new Pen(Color.Red, 4);g.DrawEllipse(NewRedPen, new Rectangle(new Point(75, 65), new Size(80, 80)));NewRedPen.Dispose();Pen BluePen = new Pen(Color.Blue, 4);g.DrawEllipse(BluePen, new Rectangle(new Point(155, 65), new Size(80, 80)));BluePen.Dispose();Pen BlackPen = new Pen(Color.Black, 4);g.DrawEllipse(BlackPen, new Rectangle(new Point(235, 65), new Size(80, 80)));BlackPen.Dispose();Pen YellowPen = new Pen(Color.Yellow, 4);g.DrawEllipse(YellowPen, new Rectangle(new Point(115, 120), new Size(80, 80)));YellowPen.Dispose();Pen GreenPen = new Pen(Color.Green, 4);g.DrawEllipse(GreenPen, new Rectangle(new Point(195, 120), new Size(80, 80)));GreenPen.Dispose();}}
}