C#划线源代码
using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;namespace DrawLine{ public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void OnPaint(object sender, PaintEventArgs e) { Graphics g = e.Graphics; Pen pen = new Pen(Color.FromArgb(128, 128, 0, 128)); pen.Width = 10; g.DrawLine(pen, 10, 10, 100, 10);//画实线，图中左边第1条线 pen.DashStyle = System.Drawing.Drawing2D.DashStyle.Dash;//虚线笔 g.DrawLine(pen, 10, 50, 100, 50); //画虚线，图中左边第2条线 pen.DashStyle = System.Drawing.Drawing2D.DashStyle.DashDot; g.DrawLine(pen, 10, 100, 100, 100);//点，短线风格的线 pen.DashStyle = System.Drawing.Drawing2D.DashStyle.DashDotDot; g.DrawLine(pen, 10, 150, 100, 150);//双点，短线风格的线 pen.DashStyle = System.Drawing.Drawing2D.DashStyle.Dot; g.DrawLine(pen, 10, 200, 100, 200);//由点组成的线 pen.DashStyle = System.Drawing.Drawing2D.DashStyle.Solid;//实线笔 pen.EndCap = System.Drawing.Drawing2D.LineCap.ArrowAnchor;//后箭头 g.DrawLine(pen, 150, 10, 250, 10);//图中右边第1条线 pen.StartCap = System.Drawing.Drawing2D.LineCap.ArrowAnchor;//前箭头 g.DrawLine(pen, 150, 50, 250, 50); pen.EndCap = System.Drawing.Drawing2D.LineCap.RoundAnchor; g.DrawLine(pen, 150, 100, 250, 100); pen.EndCap = System.Drawing.Drawing2D.LineCap.SquareAnchor; g.DrawLine(pen, 150, 150, 250, 150); pen.EndCap = System.Drawing.Drawing2D.LineCap.DiamondAnchor; g.DrawLine(pen, 150, 200, 250, 200); } }}
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