C#画笔Pen画虚线的方法

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 WindowsApplication2{  public partial class Form11 : Form  {    public Form11()    {      InitializeComponent();    }    private void button1_Click(object sender, EventArgs e)    {      Pen pen2 = new Pen(Color.Blue, 12);      pen2.DashStyle = DashStyle.Custom;      pen2.DashPattern = new float[] { 1f, 1f };      Graphics g2 = this.CreateGraphics();      g2.DrawLine(pen2, 10, 150, 500, 150);    }  }}