C#实现条形码生成器：步骤与字体选择

C#生成条形码代码
using System;
using System.Collections.Generic;
using System.Web;
using System.Drawing;
using System.Drawing.Imaging;
using System.Drawing.Drawing2D;
using System.Drawing.Text;
using System.Drawing.Design;
using System.IO;
using System.Collections;

namespace Public.Equipment
{
    /// <summary>
    ///绘制条形码
    /// </summary>
    public class DrawingBarCode
    {
        public DrawingBarCode()
        {
            //
            //TODO: 在此处添加构造函数逻辑
            //
        }

        #region 根据字体产生条形码
        /// <summary>
        /// 根据条形码绘制图片
        /// </summary>

        /// <param name="strNumber">条形码</param>
        public void DrawingBarCode(string strNumber)
        {
            PrivateFontCollection fonts = new PrivateFontCollection();
            //39带数字
            //fonts.AddFontFile(HttpContext.Current.Server.MapPath(".") + "/BarCodeFonts/V100010_.TTF");
            //FontFamily ff = new FontFamily("C39HrP48DlTt", fonts);

            //39码
            strNumber = "*" + strNumber + "*";
            fonts.AddFontFile(HttpContext.Current.Server.MapPath(".") + "/BarCodeFonts/FREE3OF9X.TTF");
            FontFamily ff = new FontFamily("Free 3 of 9 Extended", fonts);

            //接近条形码
            //fonts.AddFontFile(HttpContext.Current.Server.MapPath(".") + "/BarCodeFonts/V100014_.TTF");
            //FontFamily ff = new FontFamily("C39P24DlTt", fonts);
            Font font = new Font(ff, 12);

            //设置图片大小
            Image img = new Bitmap(1, 1);
            Graphics g = Graphics.FromImage(img);
            SizeF fontSize = g.MeasureString(strNumber, font);
            int intWidth = Convert.ToInt32(fontSize.Width);
            int intHeight = Convert.ToInt32(fontSize.Height);
            g.Dispose();
            img.Dispose();

            img = new Bitmap(intWidth, intHeight);
            g = Graphics.FromImage(img);
            g.Clear(Color.White);