基于C#实现条形码打印程序的完整代码

条形码打印解决方案，支持多种条码格式、批量打印、标签设计等功能。

一、项目结构

BarcodePrinter/
├── Program.cs
├── MainForm.cs
├── BarcodeGenerator.cs
├── PrintManager.cs
├── LabelDesigner.cs
├── BarcodeTypes.cs
└── App.config

二、核心源码实现

2.1 主程序入口 (Program.cs)

using System;
using System.Windows.Forms;

namespace BarcodePrinter
{
    internal static class Program
    {
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new MainForm());
        }
    }
}

2.2 主窗体 (MainForm.cs)

using System;
using System.Drawing;
using System.Drawing.Printing;
using System.Windows.Forms;

namespace BarcodePrinter
{
    public partial class MainForm : Form
    {
        private BarcodeGenerator barcodeGenerator;
        private PrintManager printManager;
        private LabelDesigner labelDesigner;

        public MainForm()
        {
            InitializeComponent();
            barcodeGenerator = new BarcodeGenerator();
            printManager = new PrintManager();
            labelDesigner = new LabelDesigner();
            LoadBarcodeTypes();
        }

        private void LoadBarcodeTypes()
        {
            cmbBarcodeType.Items.AddRange(BarcodeTypes.GetSupportedTypes());
            cmbBarcodeType.SelectedIndex = 0;
        }

        private void btnGenerate_Click(object sender, EventArgs e)
        {
            try
            {
                string data = txtBarcodeData.Text.Trim();
                string type = cmbBarcodeType.SelectedItem.ToString();
                
                if (string.IsNullOrEmpty(data))
                {
                    MessageBox.Show("请输入条形码数据！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                    return;
                }

                Image barcodeImage = barcodeGenerator.GenerateBarcode(data, type, 
                    (int)numWidth.Value, (int)numHeight.Value);
                
                pictureBox.Image = barcodeImage;
                lblStatus.Text = $"条形码生成成功 ({type})";
            }
            catch (Exception ex)
            {
                MessageBox.Show($"生成失败: {ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void btnPrint_Click(object sender, EventArgs e)
        {
            if (pictureBox.Image == null)
            {
                MessageBox.Show("请先生成条形码！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                return;
            }

            try
            {
                PrintDialog printDialog = new PrintDialog();
                printDialog.Document = printManager.CreatePrintDocument(pictureBox.Image, txtLabel.Text);
                
                if (printDialog.ShowDialog() == DialogResult.OK)
                {
                    printManager.Print(printDialog.Document);
                    lblStatus.Text = "打印任务已发送";
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show($"打印失败: {ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void btnBatchPrint_Click(object sender, EventArgs e)
        {
            BatchPrintForm batchForm = new BatchPrintForm(barcodeGenerator);
            batchForm.ShowDialog();
        }

        private void btnDesignLabel_Click(object sender, EventArgs e)
        {
            LabelDesignForm designForm = new LabelDesignForm(labelDesigner);
            designForm.ShowDialog();
        }

        private void numCopies_ValueChanged(object sender, EventArgs e)
        {
            printManager.SetCopies((int)numCopies.Value);
        }

        #region Windows Form Designer generated code

        private System.ComponentModel.IContainer components = null;
        private PictureBox pictureBox;
        private TextBox txtBarcodeData;
        private ComboBox cmbBarcodeType;
        private Button btnGenerate;
        private Button btnPrint;
        private Button btnBatchPrint;
        private Button btnDesignLabel;
        private Label label1;
        private Label label2;
        private Label label3;
        private Label label4;
        private NumericUpDown numWidth;
        private NumericUpDown numHeight;
        private NumericUpDown numCopies;
        private TextBox txtLabel;
        private Label lblStatus;

        private void InitializeComponent()
        {
            this.components = new System.ComponentModel.Container();
            this.pictureBox = new System.Windows.Forms.PictureBox();
            this.txtBarcodeData = new System.Windows.Forms.TextBox();
            this.cmbBarcodeType = new System.Windows.Forms.ComboBox();
            this.btnGenerate = new System.Windows.Forms.Button();
            this.btnPrint = new System.Windows.Forms.Button();
            this.btnBatchPrint = new System.Windows.Forms.Button();
            this.btnDesignLabel = new System.Windows.Forms.Button();
            this.label1 = new System.Windows.Forms.Label();
            this.label2 = new System.Windows.Forms.Label();
            this.label3 = new System.Windows.Forms.Label();
            this.label4 = new System.Windows.Forms.Label();
            this.numWidth = new System.Windows.Forms.NumericUpDown();
            this.numHeight = new System.Windows.Forms.NumericUpDown();
            this.numCopies = new System.Windows.Forms.NumericUpDown();
            this.txtLabel = new System.Windows.Forms.TextBox();
            this.lblStatus = new System.Windows.Forms.Label();
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox)).BeginInit();
            ((System.ComponentModel.ISupportInitialize)(this.numWidth)).BeginInit();
            ((System.ComponentModel.ISupportInitialize)(this.numHeight)).BeginInit();
            ((System.ComponentModel.ISupportInitialize)(this.numCopies)).BeginInit();
            this.SuspendLayout();
            
            // pictureBox
            this.pictureBox.BackColor = System.Drawing.Color.White;
            this.pictureBox.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.pictureBox.Location = new System.Drawing.Point(12, 12);
            this.pictureBox.Name = "pictureBox";
            this.pictureBox.Size = new System.Drawing.Size(400, 200);
            this.pictureBox.TabIndex = 0;
            this.pictureBox.TabStop = false;
            
            // txtBarcodeData
            this.txtBarcodeData.Location = new System.Drawing.Point(12, 230);
            this.txtBarcodeData.Name = "txtBarcodeData";
            this.txtBarcodeData.Size = new System.Drawing.Size(200, 23);
            this.txtBarcodeData.TabIndex = 1;
            this.txtBarcodeData.Text = "123456789012";
            
            // cmbBarcodeType
            this.cmbBarcodeType.FormattingEnabled = true;
            this.cmbBarcodeType.Location = new System.Drawing.Point(218, 230);
            this.cmbBarcodeType.Name = "cmbBarcodeType";
            this.cmbBarcodeType.Size = new System.Drawing.Size(121, 23);
            this.cmbBarcodeType.TabIndex = 2;
            
            // btnGenerate
            this.btnGenerate.Location = new System.Drawing.Point(345, 228);
            this.btnGenerate.Name = "btnGenerate";
            this.btnGenerate.Size = new System.Drawing.Size(75, 23);
            this.btnGenerate.TabIndex = 3;
            this.btnGenerate.Text = "生成";
            this.btnGenerate.UseVisualStyleBackColor = true;
            this.btnGenerate.Click += new System.EventHandler(this.btnGenerate_Click);
            
            // btnPrint
            this.btnPrint.Location = new System.Drawing.Point(426, 228);
            this.btnPrint.Name = "btnPrint";
            this.btnPrint.Size = new System.Drawing.Size(75, 23);
            this.btnPrint.TabIndex = 4;
            this.btnPrint.Text = "打印";
            this.btnPrint.UseVisualStyleBackColor = true;
            this.btnPrint.Click += new System.EventHandler(this.btnPrint_Click);
            
            // btnBatchPrint
            this.btnBatchPrint.Location = new System.Drawing.Point(12, 270);
            this.btnBatchPrint.Name = "btnBatchPrint";
            this.btnBatchPrint.Size = new System.Drawing.Size(100, 30);
            this.btnBatchPrint.TabIndex = 5;
            this.btnBatchPrint.Text = "批量打印";
            this.btnBatchPrint.UseVisualStyleBackColor = true;
            this.btnBatchPrint.Click += new System.EventHandler(this.btnBatchPrint_Click);
            
            // btnDesignLabel
            this.btnDesignLabel.Location = new System.Drawing.Point(118, 270);
            this.btnDesignLabel.Name = "btnDesignLabel";
            this.btnDesignLabel.Size = new System.Drawing.Size(100, 30);
            this.btnDesignLabel.TabIndex = 6;
            this.btnDesignLabel.Text = "标签设计";
            this.btnDesignLabel.UseVisualStyleBackColor = true;
            this.btnDesignLabel.Click += new System.EventHandler(this.btnDesignLabel_Click);
            
            // label1
            this.label1.AutoSize = true;
            this.label1.Location = new System.Drawing.Point(12, 310);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(56, 15);
            this.label1.TabIndex = 7;
            this.label1.Text = "标签文字:";
            
            // txtLabel
            this.txtLabel.Location = new System.Drawing.Point(74, 307);
            this.txtLabel.Name = "txtLabel";
            this.txtLabel.Size = new System.Drawing.Size(144, 23);
            this.txtLabel.TabIndex = 8;
            this.txtLabel.Text = "产品名称";
            
            // label2
            this.label2.AutoSize = true;
            this.label2.Location = new System.Drawing.Point(224, 310);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(44, 15);
            this.label2.TabIndex = 9;
            this.label2.Text = "宽度:";
            
            // numWidth
            this.numWidth.Location = new System.Drawing.Point(274, 308);
            this.numWidth.Maximum = new decimal(new int[] { 500, 0, 0, 0 });
            this.numWidth.Minimum = new decimal(new int[] { 50, 0, 0, 0 });
            this.numWidth.Name = "numWidth";
            this.numWidth.Size = new System.Drawing.Size(65, 23);
            this.numWidth.TabIndex = 10;
            this.numWidth.Value = new decimal(new int[] { 300, 0, 0, 0 });
            
            // label3
            this.label3.AutoSize = true;
            this.label3.Location = new System.Drawing.Point(345, 310);
            this.label3.Name = "label3";
            this.label3.Size = new System.Drawing.Size(44, 15);
            this.label3.TabIndex = 11;
            this.label3.Text = "高度:";
            
            // numHeight
            this.numHeight.Location = new System.Drawing.Point(395, 308);
            this.numHeight.Maximum = new decimal(new int[] { 300, 0, 0, 0 });
            this.numHeight.Minimum = new decimal(new int[] { 50, 0, 0, 0 });
            this.numHeight.Name = "numHeight";
            this.numHeight.Size = new System.Drawing.Size(65, 23);
            this.numHeight.TabIndex = 12;
            this.numHeight.Value = new decimal(new int[] { 150, 0, 0, 0 });
            
            // label4
            this.label4.AutoSize = true;
            this.label4.Location = new System.Drawing.Point(466, 310);
            this.label4.Name = "label4";
            this.label4.Size = new System.Drawing.Size(44, 15);
            this.label4.TabIndex = 13;
            this.label4.Text = "份数:";
            
            // numCopies
            this.numCopies.Location = new System.Drawing.Point(516, 308);
            this.numCopies.Maximum = new decimal(new int[] { 100, 0, 0, 0 });
            this.numCopies.Minimum = new decimal(new int[] { 1, 0, 0, 0 });
            this.numCopies.Name = "numCopies";
            this.numCopies.Size = new System.Drawing.Size(65, 23);
            this.numCopies.TabIndex = 14;
            this.numCopies.Value = new decimal(new int[] { 1, 0, 0, 0 });
            this.numCopies.ValueChanged += new System.EventHandler(this.numCopies_ValueChanged);
            
            // lblStatus
            this.lblStatus.AutoSize = true;
            this.lblStatus.Location = new System.Drawing.Point(12, 350);
            this.lblStatus.Name = "lblStatus";
            this.lblStatus.Size = new System.Drawing.Size(61, 15);
            this.lblStatus.TabIndex = 15;
            this.lblStatus.Text = "就绪...";
            
            // MainForm
            this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(600, 380);
            this.Controls.Add(this.lblStatus);
            this.Controls.Add(this.numCopies);
            this.Controls.Add(this.label4);
            this.Controls.Add(this.numHeight);
            this.Controls.Add(this.label3);
            this.Controls.Add(this.numWidth);
            this.Controls.Add(this.label2);
            this.Controls.Add(this.txtLabel);
            this.Controls.Add(this.label1);
            this.Controls.Add(this.btnDesignLabel);
            this.Controls.Add(this.btnBatchPrint);
            this.Controls.Add(this.btnPrint);
            this.Controls.Add(this.btnGenerate);
            this.Controls.Add(this.cmbBarcodeType);
            this.Controls.Add(this.txtBarcodeData);
            this.Controls.Add(this.pictureBox);
            this.Controls.Add(this.label2);
            this.Controls.Add(this.label3);
            this.Name = "MainForm";
            this.Text = "条形码打印程序";
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox)).EndInit();
            ((System.ComponentModel.ISupportInitialize)(this.numWidth)).EndInit();
            ((System.ComponentModel.ISupportInitialize)(this.numHeight)).EndInit();
            ((System.ComponentModel.ISupportInitialize)(this.numCopies)).EndInit();
            this.ResumeLayout(false);
            this.PerformLayout();
        }

        #endregion
    }
}

2.3 条形码生成器 (BarcodeGenerator.cs)

using System;
using System.Drawing;
using System.Drawing.Imaging;
using ZXing;
using ZXing.Common;
using ZXing.OneD;

namespace BarcodePrinter
{
    public class BarcodeGenerator
    {
        /// <summary>
        /// 生成条形码
        /// </summary>
        /// <param name="data">条码数据</param>
        /// <param name="type">条码类型</param>
        /// <param name="width">宽度</param>
        /// <param name="height">高度</param>
        /// <returns>条形码图片</returns>
        public Image GenerateBarcode(string data, string type, int width, int height)
        {
            try
            {
                BarcodeFormat format = BarcodeTypes.GetFormat(type);
                EncodingOptions options = new EncodingOptions
                {
                    Width = width,
                    Height = height,
                    Margin = 10,
                    PureBarcode = false
                };

                BarcodeWriter writer = new BarcodeWriter
                {
                    Format = format,
                    Options = options
                };

                return writer.Write(data);
            }
            catch (Exception ex)
            {
                throw new Exception($"生成条形码失败: {ex.Message}");
            }
        }

        /// <summary>
        /// 生成带标签的条形码
        /// </summary>
        public Image GenerateBarcodeWithLabel(string data, string type, string label, int width, int height)
        {
            Image barcode = GenerateBarcode(data, type, width, height);
            
            Bitmap result = new Bitmap(width, height + 40);
            using (Graphics g = Graphics.FromImage(result))
            {
                g.Clear(Color.White);
                g.DrawImage(barcode, 0, 0);
                
                // 添加标签文字
                using (Font font = new Font("Arial", 10))
                using (Brush brush = new SolidBrush(Color.Black))
                {
                    StringFormat sf = new StringFormat
                    {
                        Alignment = StringAlignment.Center,
                        LineAlignment = StringAlignment.Center
                    };
                    g.DrawString(label, font, brush, new Rectangle(0, height, width, 40), sf);
                }
            }
            
            return result;
        }

        /// <summary>
        /// 生成二维码
        /// </summary>
        public Image GenerateQRCode(string data, int size)
        {
            BarcodeWriter writer = new BarcodeWriter
            {
                Format = BarcodeFormat.QR_CODE,
                Options = new EncodingOptions
                {
                    Width = size,
                    Height = size,
                    Margin = 1
                }
            };
            
            return writer.Write(data);
        }
    }
}

2.4 条码类型定义 (BarcodeTypes.cs)

using System.Collections.Generic;
using ZXing;

namespace BarcodePrinter
{
    public static class BarcodeTypes
    {
        private static readonly Dictionary<string, BarcodeFormat> TypeMap = new Dictionary<string, BarcodeFormat>
        {
            ["Code128"] = BarcodeFormat.CODE_128,
            ["Code39"] = BarcodeFormat.CODE_39,
            ["EAN13"] = BarcodeFormat.EAN_13,
            ["EAN8"] = BarcodeFormat.EAN_8,
            ["UPC-A"] = BarcodeFormat.UPC_A,
            ["UPC-E"] = BarcodeFormat.UPC_E,
            ["ITF"] = BarcodeFormat.ITF,
            ["Codabar"] = BarcodeFormat.CODABAR,
            ["RSS14"] = BarcodeFormat.RSS_14,
            ["RSSExpanded"] = BarcodeFormat.RSS_EXPANDED,
            ["QR Code"] = BarcodeFormat.QR_CODE,
            ["DataMatrix"] = BarcodeFormat.DATA_MATRIX,
            ["PDF417"] = BarcodeFormat.PDF_417,
            ["Aztec"] = BarcodeFormat.AZTEC
        };

        public static string[] GetSupportedTypes()
        {
            return new string[]
            {
                "Code128", "Code39", "EAN13", "EAN8", "UPC-A", "UPC-E", 
                "ITF", "Codabar", "QR Code", "DataMatrix", "PDF417"
            };
        }

        public static BarcodeFormat GetFormat(string typeName)
        {
            if (TypeMap.TryGetValue(typeName, out BarcodeFormat format))
            {
                return format;
            }
            throw new ArgumentException($"不支持的条码类型: {typeName}");
        }
    }
}

2.5 打印管理器 (PrintManager.cs)

using System.Drawing;
using System.Drawing.Printing;

namespace BarcodePrinter
{
    public class PrintManager
    {
        private Image barcodeImage;
        private string labelText;
        private int copies = 1;

        public void SetCopies(int copies)
        {
            this.copies = copies;
        }

        public PrintDocument CreatePrintDocument(Image image, string label)
        {
            barcodeImage = image;
            labelText = label;
            
            PrintDocument document = new PrintDocument();
            document.PrintPage += Document_PrintPage;
            document.EndPrint += Document_EndPrint;
            
            return document;
        }

        public void Print(PrintDocument document)
        {
            document.Print();
        }

        private void Document_PrintPage(object sender, PrintPageEventArgs e)
        {
            // 计算打印位置（居中）
            float x = (e.PageBounds.Width - barcodeImage.Width) / 2;
            float y = (e.PageBounds.Height - barcodeImage.Height) / 2 - 20;
            
            // 绘制条形码
            e.Graphics.DrawImage(barcodeImage, x, y);
            
            // 绘制标签文字
            if (!string.IsNullOrEmpty(labelText))
            {
                using (Font font = new Font("Arial", 12))
                using (Brush brush = new SolidBrush(Color.Black))
                {
                    StringFormat sf = new StringFormat
                    {
                        Alignment = StringAlignment.Center,
                        LineAlignment = StringAlignment.Center
                    };
                    
                    RectangleF rect = new RectangleF(0, y + barcodeImage.Height + 5, 
                        e.PageBounds.Width, 30);
                    e.Graphics.DrawString(labelText, font, brush, rect, sf);
                }
            }
            
            // 设置是否还有更多页
            e.HasMorePages = false;
        }

        private void Document_EndPrint(object sender, PrintEventArgs e)
        {
            // 清理资源
            if (barcodeImage != null)
            {
                barcodeImage.Dispose();
                barcodeImage = null;
            }
        }
    }
}

2.6 标签设计器 (LabelDesigner.cs)

using System;
using System.Collections.Generic;
using System.Drawing;

namespace BarcodePrinter
{
    public class LabelDesigner
    {
        public List<LabelElement> Elements { get; private set; }
        public Size LabelSize { get; set; }

        public LabelDesigner()
        {
            Elements = new List<LabelElement>();
            LabelSize = new Size(400, 300);
        }

        public void AddBarcode(string data, string type, Point position, Size size)
        {
            Elements.Add(new LabelElement
            {
                Type = ElementType.Barcode,
                Data = data,
                BarcodeType = type,
                Position = position,
                Size = size
            });
        }

        public void AddText(string text, Point position, Font font, Color color)
        {
            Elements.Add(new LabelElement
            {
                Type = ElementType.Text,
                Data = text,
                Font = font,
                Color = color,
                Position = position
            });
        }

        public void AddImage(Image image, Point position, Size size)
        {
            Elements.Add(new LabelElement
            {
                Type = ElementType.Image,
                Image = image,
                Position = position,
                Size = size
            });
        }

        public Image GenerateLabel()
        {
            Bitmap label = new Bitmap(LabelSize.Width, LabelSize.Height);
            
            using (Graphics g = Graphics.FromImage(label))
            {
                g.Clear(Color.White);
                
                foreach (var element in Elements)
                {
                    switch (element.Type)
                    {
                        case ElementType.Barcode:
                            // 这里会调用BarcodeGenerator生成条码
                            break;
                        case ElementType.Text:
                            using (Brush brush = new SolidBrush(element.Color))
                            {
                                g.DrawString(element.Data, element.Font, brush, element.Position);
                            }
                            break;
                        case ElementType.Image:
                            g.DrawImage(element.Image, new Rectangle(element.Position, element.Size));
                            break;
                    }
                }
            }
            
            return label;
        }
    }

    public enum ElementType
    {
        Barcode,
        Text,
        Image
    }

    public class LabelElement
    {
        public ElementType Type { get; set; }
        public string Data { get; set; }
        public string BarcodeType { get; set; }
        public Font Font { get; set; }
        public Color Color { get; set; }
        public Image Image { get; set; }
        public Point Position { get; set; }
        public Size Size { get; set; }
    }
}

2.7 批量打印窗体 (BatchPrintForm.cs)

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Windows.Forms;

namespace BarcodePrinter
{
    public partial class BatchPrintForm : Form
    {
        private BarcodeGenerator generator;
        private List<string> barcodeDataList;

        public BatchPrintForm(BarcodeGenerator barcodeGenerator)
        {
            InitializeComponent();
            generator = barcodeGenerator;
            barcodeDataList = new List<string>();
        }

        private void btnAddData_Click(object sender, EventArgs e)
        {
            string data = txtNewData.Text.Trim();
            if (!string.IsNullOrEmpty(data))
            {
                barcodeDataList.Add(data);
                listBox.Items.Add(data);
                txtNewData.Clear();
                lblCount.Text = $"共 {barcodeDataList.Count} 条数据";
            }
        }

        private void btnRemoveData_Click(object sender, EventArgs e)
        {
            if (listBox.SelectedIndex >= 0)
            {
                barcodeDataList.RemoveAt(listBox.SelectedIndex);
                listBox.Items.RemoveAt(listBox.SelectedIndex);
                lblCount.Text = $"共 {barcodeDataList.Count} 条数据";
            }
        }

        private void btnImportFromFile_Click(object sender, EventArgs e)
        {
            OpenFileDialog ofd = new OpenFileDialog
            {
                Filter = "文本文件|*.txt|CSV文件|*.csv|所有文件|*.*"
            };
            
            if (ofd.ShowDialog() == DialogResult.OK)
            {
                string[] lines = System.IO.File.ReadAllLines(ofd.FileName);
                foreach (string line in lines)
                {
                    if (!string.IsNullOrWhiteSpace(line))
                    {
                        barcodeDataList.Add(line.Trim());
                        listBox.Items.Add(line.Trim());
                    }
                }
                lblCount.Text = $"共 {barcodeDataList.Count} 条数据";
            }
        }

        private void btnStartBatchPrint_Click(object sender, EventArgs e)
        {
            if (barcodeDataList.Count == 0)
            {
                MessageBox.Show("请先添加条码数据！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                return;
            }

            PrintDialog printDialog = new PrintDialog();
            if (printDialog.ShowDialog() == DialogResult.OK)
            {
                int successCount = 0;
                string type = cmbBatchType.SelectedItem.ToString();
                
                foreach (string data in barcodeDataList)
                {
                    try
                    {
                        Image barcode = generator.GenerateBarcode(data, type, 
                            (int)numBatchWidth.Value, (int)numBatchHeight.Value);
                        
                        PrintDocument doc = new PrintDocument();
                        doc.PrintPage += (sender, args) =>
                        {
                            args.Graphics.DrawImage(barcode, 50, 50);
                            args.HasMorePages = false;
                        };
                        
                        doc.PrinterSettings = printDialog.PrinterSettings;
                        doc.Print();
                        successCount++;
                        
                        barcode.Dispose();
                    }
                    catch (Exception ex)
                    {
                        MessageBox.Show($"打印 {data} 失败: {ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }
                }
                
                MessageBox.Show($"批量打印完成！成功打印 {successCount}/{barcodeDataList.Count} 个条码", 
                    "完成", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
        }

        #region Windows Form Designer generated code
        private System.ComponentModel.IContainer components = null;
        private TextBox txtNewData;
        private Button btnAddData;
        private Button btnRemoveData;
        private Button btnImportFromFile;
        private ListBox listBox;
        private Label lblCount;
        private ComboBox cmbBatchType;
        private NumericUpDown numBatchWidth;
        private NumericUpDown numBatchHeight;
        private Button btnStartBatchPrint;
        private Label label1;
        private Label label2;
        private Label label3;

        private void InitializeComponent()
        {
            this.components = new System.ComponentModel.Container();
            this.txtNewData = new System.Windows.Forms.TextBox();
            this.btnAddData = new System.Windows.Forms.Button();
            this.btnRemoveData = new System.Windows.Forms.Button();
            this.btnImportFromFile = new System.Windows.Forms.Button();
            this.listBox = new System.Windows.Forms.ListBox();
            this.lblCount = new System.Windows.Forms.Label();
            this.cmbBatchType = new System.Windows.Forms.ComboBox();
            this.numBatchWidth = new System.Windows.Forms.NumericUpDown();
            this.numBatchHeight = new System.Windows.Forms.NumericUpDown();
            this.btnStartBatchPrint = new System.Windows.Forms.Button();
            this.label1 = new System.Windows.Forms.Label();
            this.label2 = new System.Windows.Forms.Label();
            this.label3 = new System.Windows.Forms.Label();
            ((System.ComponentModel.ISupportInitialize)(this.numBatchWidth)).BeginInit();
            ((System.ComponentModel.ISupportInitialize)(this.numBatchHeight)).BeginInit();
            this.SuspendLayout();
            
            // txtNewData
            this.txtNewData.Location = new System.Drawing.Point(12, 12);
            this.txtNewData.Name = "txtNewData";
            this.txtNewData.Size = new System.Drawing.Size(200, 23);
            this.txtNewData.TabIndex = 0;
            
            // btnAddData
            this.btnAddData.Location = new System.Drawing.Point(218, 10);
            this.btnAddData.Name = "btnAddData";
            this.btnAddData.Size = new System.Drawing.Size(75, 23);
            this.btnAddData.TabIndex = 1;
            this.btnAddData.Text = "添加";
            this.btnAddData.UseVisualStyleBackColor = true;
            this.btnAddData.Click += new System.EventHandler(this.btnAddData_Click);
            
            // btnRemoveData
            this.btnRemoveData.Location = new System.Drawing.Point(299, 10);
            this.btnRemoveData.Name = "btnRemoveData";
            this.btnRemoveData.Size = new System.Drawing.Size(75, 23);
            this.btnRemoveData.TabIndex = 2;
            this.btnRemoveData.Text = "删除";
            this.btnRemoveData.UseVisualStyleBackColor = true;
            this.btnRemoveData.Click += new System.EventHandler(this.btnRemoveData_Click);
            
            // btnImportFromFile
            this.btnImportFromFile.Location = new System.Drawing.Point(380, 10);
            this.btnImportFromFile.Name = "btnImportFromFile";
            this.btnImportFromFile.Size = new System.Drawing.Size(100, 23);
            this.btnImportFromFile.TabIndex = 3;
            this.btnImportFromFile.Text = "导入文件";
            this.btnImportFromFile.UseVisualStyleBackColor = true;
            this.btnImportFromFile.Click += new System.EventHandler(this.btnImportFromFile_Click);
            
            // listBox
            this.listBox.FormattingEnabled = true;
            this.listBox.ItemHeight = 15;
            this.listBox.Location = new System.Drawing.Point(12, 41);
            this.listBox.Name = "listBox";
            this.listBox.Size = new System.Drawing.Size(468, 199);
            this.listBox.TabIndex = 4;
            
            // lblCount
            this.lblCount.AutoSize = true;
            this.lblCount.Location = new System.Drawing.Point(12, 246);
            this.lblCount.Name = "lblCount";
            this.lblCount.Size = new System.Drawing.Size(41, 15);
            this.lblCount.TabIndex = 5;
            this.lblCount.Text = "共 0 条";
            
            // cmbBatchType
            this.cmbBatchType.FormattingEnabled = true;
            this.cmbBatchType.Items.AddRange(BarcodeTypes.GetSupportedTypes());
            this.cmbBatchType.Location = new System.Drawing.Point(12, 275);
            this.cmbBatchType.Name = "cmbBatchType";
            this.cmbBatchType.Size = new System.Drawing.Size(121, 23);
            this.cmbBatchType.TabIndex = 6;
            this.cmbBatchType.SelectedIndex = 0;
            
            // numBatchWidth
            this.numBatchWidth.Location = new System.Drawing.Point(139, 277);
            this.numBatchWidth.Maximum = new decimal(new int[] { 500, 0, 0, 0 });
            this.numBatchWidth.Minimum = new decimal(new int[] { 50, 0, 0, 0 });
            this.numBatchWidth.Name = "numBatchWidth";
            this.numBatchWidth.Size = new System.Drawing.Size(65, 23);
            this.numBatchWidth.TabIndex = 7;
            this.numBatchWidth.Value = new decimal(new int[] { 300, 0, 0, 0 });
            
            // numBatchHeight
            this.numBatchHeight.Location = new System.Drawing.Point(210, 277);
            this.numBatchHeight.Maximum = new decimal(new int[] { 300, 0, 0, 0 });
            this.numBatchHeight.Minimum = new decimal(new int[] { 50, 0, 0, 0 });
            this.numBatchHeight.Name = "numBatchHeight";
            this.numBatchHeight.Size = new System.Drawing.Size(65, 23);
            this.numBatchHeight.TabIndex = 8;
            this.numBatchHeight.Value = new decimal(new int[] { 150, 0, 0, 0 });
            
            // btnStartBatchPrint
            this.btnStartBatchPrint.Location = new System.Drawing.Point(281, 273);
            this.btnStartBatchPrint.Name = "btnStartBatchPrint";
            this.btnStartBatchPrint.Size = new System.Drawing.Size(100, 30);
            this.btnStartBatchPrint.TabIndex = 9;
            this.btnStartBatchPrint.Text = "开始批量打印";
            this.btnStartBatchPrint.UseVisualStyleBackColor = true;
            this.btnStartBatchPrint.Click += new System.EventHandler(this.btnStartBatchPrint_Click);
            
            // label1
            this.label1.AutoSize = true;
            this.label1.Location = new System.Drawing.Point(139, 260);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(44, 15);
            this.label1.TabIndex = 10;
            this.label1.Text = "宽度:";
            
            // label2
            this.label2.AutoSize = true;
            this.label2.Location = new System.Drawing.Point(210, 260);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(44, 15);
            this.label2.TabIndex = 11;
            this.label2.Text = "高度:";
            
            // label3
            this.label3.AutoSize = true;
            this.label3.Location = new System.Drawing.Point(12, 260);
            this.label3.Name = "label3";
            this.label3.Size = new System.Drawing.Size(56, 15);
            this.label3.TabIndex = 12;
            this.label3.Text = "条码类型:";
            
            // BatchPrintForm
            this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(492, 320);
            this.Controls.Add(this.label3);
            this.Controls.Add(this.label2);
            this.Controls.Add(this.label1);
            this.Controls.Add(this.btnStartBatchPrint);
            this.Controls.Add(this.numBatchHeight);
            this.Controls.Add(this.numBatchWidth);
            this.Controls.Add(this.cmbBatchType);
            this.Controls.Add(this.lblCount);
            this.Controls.Add(this.listBox);
            this.Controls.Add(this.btnImportFromFile);
            this.Controls.Add(this.btnRemoveData);
            this.Controls.Add(this.btnAddData);
            this.Controls.Add(this.txtNewData);
            this.Name = "BatchPrintForm";
            this.Text = "批量打印";
            ((System.ComponentModel.ISupportInitialize)(this.numBatchWidth)).EndInit();
            ((System.ComponentModel.ISupportInitialize)(this.numBatchHeight)).EndInit();
            this.ResumeLayout(false);
            this.PerformLayout();
        }
        #endregion
    }
}

2.8 标签设计窗体 (LabelDesignForm.cs)

using System;
using System.Drawing;
using System.Windows.Forms;

namespace BarcodePrinter
{
    public partial class LabelDesignForm : Form
    {
        private LabelDesigner designer;

        public LabelDesignForm(LabelDesigner labelDesigner)
        {
            InitializeComponent();
            designer = labelDesigner;
        }

        private void btnAddBarcode_Click(object sender, EventArgs e)
        {
            if (!string.IsNullOrEmpty(txtBarcodeData.Text))
            {
                designer.AddBarcode(txtBarcodeData.Text, cmbBarcodeType.SelectedItem.ToString(),
                    new Point((int)numX.Value, (int)numY.Value),
                    new Size((int)numWidth.Value, (int)numHeight.Value));
                UpdatePreview();
            }
        }

        private void btnAddText_Click(object sender, EventArgs e)
        {
            if (!string.IsNullOrEmpty(txtText.Text))
            {
                designer.AddText(txtText.Text, 
                    new Point((int)numTextX.Value, (int)numTextY.Value),
                    new Font("Arial", (float)numFontSize.Value),
                    Color.Black);
                UpdatePreview();
            }
        }

        private void UpdatePreview()
        {
            pictureBoxPreview.Image = designer.GenerateLabel();
        }

        #region Windows Form Designer generated code
        private System.ComponentModel.IContainer components = null;
        private PictureBox pictureBoxPreview;
        private TextBox txtBarcodeData;
        private ComboBox cmbBarcodeType;
        private NumericUpDown numX;
        private NumericUpDown numY;
        private NumericUpDown numWidth;
        private NumericUpDown numHeight;
        private Button btnAddBarcode;
        private TextBox txtText;
        private NumericUpDown numTextX;
        private NumericUpDown numTextY;
        private NumericUpDown numFontSize;
        private Button btnAddText;
        private Label label1;
        private Label label2;
        private Label label3;
        private Label label4;
        private Label label5;
        private Label label6;
        private Label label7;
        private Label label8;

        private void InitializeComponent()
        {
            this.components = new System.ComponentModel.Container();
            this.pictureBoxPreview = new System.Windows.Forms.PictureBox();
            this.txtBarcodeData = new System.Windows.Forms.TextBox();
            this.cmbBarcodeType = new System.Windows.Forms.ComboBox();
            this.numX = new System.Windows.Forms.NumericUpDown();
            this.numY = new System.Windows.Forms.NumericUpDown();
            this.numWidth = new System.Windows.Forms.NumericUpDown();
            this.numHeight = new System.Windows.Forms.NumericUpDown();
            this.btnAddBarcode = new System.Windows.Forms.Button();
            this.txtText = new System.Windows.Forms.TextBox();
            this.numTextX = new System.Windows.Forms.NumericUpDown();
            this.numTextY = new System.Windows.Forms.NumericUpDown();
            this.numFontSize = new System.Windows.Forms.NumericUpDown();
            this.btnAddText = new System.Windows.Forms.Button();
            this.label1 = new System.Windows.Forms.Label();
            this.label2 = new System.Windows.Forms.Label();
            this.label3 = new System.Windows.Forms.Label();
            this.label4 = new System.Windows.Forms.Label();
            this.label5 = new System.Windows.Forms.Label();
            this.label6 = new System.Windows.Forms.Label();
            this.label7 = new System.Windows.Forms.Label();
            this.label8 = new System.Windows.Forms.Label();
            ((System.ComponentModel.ISupportInitialize)(this.pictureBoxPreview)).BeginInit();
            ((System.ComponentModel.ISupportInitialize)(this.numX)).BeginInit();
            ((System.ComponentModel.ISupportInitialize)(this.numY)).BeginInit();
            ((System.ComponentModel.ISupportInitialize)(this.numWidth)).BeginInit();
            ((System.ComponentModel.ISupportInitialize)(this.numHeight)).BeginInit();
            ((System.ComponentModel.ISupportInitialize)(this.numTextX)).BeginInit();
            ((System.ComponentModel.ISupportInitialize)(this.numTextY)).BeginInit();
            ((System.ComponentModel.ISupportInitialize)(this.numFontSize)).BeginInit();
            this.SuspendLayout();
            
            // pictureBoxPreview
            this.pictureBoxPreview.BackColor = System.Drawing.Color.White;
            this.pictureBoxPreview.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.pictureBoxPreview.Location = new System.Drawing.Point(12, 12);
            this.pictureBoxPreview.Name = "pictureBoxPreview";
            this.pictureBoxPreview.Size = new System.Drawing.Size(400, 300);
            this.pictureBoxPreview.TabIndex = 0;
            this.pictureBoxPreview.TabStop = false;
            
            // txtBarcodeData
            this.txtBarcodeData.Location = new System.Drawing.Point(418, 12);
            this.txtBarcodeData.Name = "txtBarcodeData";
            this.txtBarcodeData.Size = new System.Drawing.Size(150, 23);
            this.txtBarcodeData.TabIndex = 1;
            this.txtBarcodeData.Text = "123456789012";
            
            // cmbBarcodeType
            this.cmbBarcodeType.FormattingEnabled = true;
            this.cmbBarcodeType.Items.AddRange(BarcodeTypes.GetSupportedTypes());
            this.cmbBarcodeType.Location = new System.Drawing.Point(418, 41);
            this.cmbBarcodeType.Name = "cmbBarcodeType";
            this.cmbBarcodeType.Size = new System.Drawing.Size(150, 23);
            this.cmbBarcodeType.TabIndex = 2;
            this.cmbBarcodeType.SelectedIndex = 0;
            
            // numX
            this.numX.Location = new System.Drawing.Point(418, 70);
            this.numX.Maximum = new decimal(new int[] { 400, 0, 0, 0 });
            this.numX.Name = "numX";
            this.numX.Size = new System.Drawing.Size(65, 23);
            this.numX.TabIndex = 3;
            this.numX.Value = new decimal(new int[] { 50, 0, 0, 0 });
            
            // numY
            this.numY.Location = new System.Drawing.Point(489, 70);
            this.numY.Maximum = new decimal(new int[] { 300, 0, 0, 0 });
            this.numY.Name = "numY";
            this.numY.Size = new System.Drawing.Size(65, 23);
            this.numY.TabIndex = 4;
            this.numY.Value = new decimal(new int[] { 50, 0, 0, 0 });
            
            // numWidth
            this.numWidth.Location = new System.Drawing.Point(418, 99);
            this.numWidth.Maximum = new decimal(new int[] { 400, 0, 0, 0 });
            this.numWidth.Name = "numWidth";
            this.numWidth.Size = new System.Drawing.Size(65, 23);
            this.numWidth.TabIndex = 5;
            this.numWidth.Value = new decimal(new int[] { 300, 0, 0, 0 });
            
            // numHeight
            this.numHeight.Location = new System.Drawing.Point(489, 99);
            this.numHeight.Maximum = new decimal(new int[] { 300, 0, 0, 0 });
            this.numHeight.Name = "numHeight";
            this.numHeight.Size = new System.Drawing.Size(65, 23);
            this.numHeight.TabIndex = 6;
            this.numHeight.Value = new decimal(new int[] { 150, 0, 0, 0 });
            
            // btnAddBarcode
            this.btnAddBarcode.Location = new System.Drawing.Point(418, 128);
            this.btnAddBarcode.Name = "btnAddBarcode";
            this.btnAddBarcode.Size = new System.Drawing.Size(100, 30);
            this.btnAddBarcode.TabIndex = 7;
            this.btnAddBarcode.Text = "添加条码";
            this.btnAddBarcode.UseVisualStyleBackColor = true;
            this.btnAddBarcode.Click += new System.EventHandler(this.btnAddBarcode_Click);
            
            // txtText
            this.txtText.Location = new System.Drawing.Point(418, 174);
            this.txtText.Name = "txtText";
            this.txtText.Size = new System.Drawing.Size(150, 23);
            this.txtText.TabIndex = 8;
            this.txtText.Text = "产品名称";
            
            // numTextX
            this.numTextX.Location = new System.Drawing.Point(418, 203);
            this.numTextX.Maximum = new decimal(new int[] { 400, 0, 0, 0 });
            this.numTextX.Name = "numTextX";
            this.numTextX.Size = new System.Drawing.Size(65, 23);
            this.numTextX.TabIndex = 9;
            this.numTextX.Value = new decimal(new int[] { 50, 0, 0, 0 });
            
            // numTextY
            this.numTextY.Location = new System.Drawing.Point(489, 203);
            this.numTextY.Maximum = new decimal(new int[] { 300, 0, 0, 0 });
            this.numTextY.Name = "numTextY";
            this.numTextY.Size = new System.Drawing.Size(65, 23);
            this.numTextY.TabIndex = 10;
            this.numTextY.Value = new decimal(new int[] { 200, 0, 0, 0 });
            
            // numFontSize
            this.numFontSize.Location = new System.Drawing.Point(418, 232);
            this.numFontSize.Maximum = new decimal(new int[] { 48, 0, 0, 0 });
            this.numFontSize.Minimum = new decimal(new int[] { 8, 0, 0, 0 });
            this.numFontSize.Name = "numFontSize";
            this.numFontSize.Size = new System.Drawing.Size(65, 23);
            this.numFontSize.TabIndex = 11;
            this.numFontSize.Value = new decimal(new int[] { 12, 0, 0, 0 });
            
            // btnAddText
            this.btnAddText.Location = new System.Drawing.Point(418, 261);
            this.btnAddText.Name = "btnAddText";
            this.btnAddText.Size = new System.Drawing.Size(100, 30);
            this.btnAddText.TabIndex = 12;
            this.btnAddText.Text = "添加文字";
            this.btnAddText.UseVisualStyleBackColor = true;
            this.btnAddText.Click += new System.EventHandler(this.btnAddText_Click);
            
            // label1
            this.label1.AutoSize = true;
            this.label1.Location = new System.Drawing.Point(415, 96);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(44, 15);
            this.label1.TabIndex = 13;
            this.label1.Text = "宽度:";
            
            // label2
            this.label2.AutoSize = true;
            this.label2.Location = new System.Drawing.Point(486, 96);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(44, 15);
            this.label2.TabIndex = 14;
            this.label2.Text = "高度:";
            
            // label3
            this.label3.AutoSize = true;
            this.label3.Location = new System.Drawing.Point(415, 67);
            this.label3.Name = "label3";
            this.label3.Size = new System.Drawing.Size(44, 15);
            this.label3.TabIndex = 15;
            this.label3.Text = "X坐标:";
            
            // label4
            this.label4.AutoSize = true;
            this.label4.Location = new System.Drawing.Point(486, 67);
            this.label4.Name = "label4";
            this.label4.Size = new System.Drawing.Size(44, 15);
            this.label4.TabIndex = 16;
            this.label4.Text = "Y坐标:";
            
            // label5
            this.label5.AutoSize = true;
            this.label5.Location = new System.Drawing.Point(415, 200);
            this.label5.Name = "label5";
            this.label5.Size = new System.Drawing.Size(44, 15);
            this.label5.TabIndex = 17;
            this.label5.Text = "X坐标:";
            
            // label6
            this.label6.AutoSize = true;
            this.label6.Location = new System.Drawing.Point(486, 200);
            this.label6.Name = "label6";
            this.label6.Size = new System.Drawing.Size(44, 15);
            this.label6.TabIndex = 18;
            this.label6.Text = "Y坐标:";
            
            // label7
            this.label7.AutoSize = true;
            this.label7.Location = new System.Drawing.Point(415, 229);
            this.label7.Name = "label7";
            this.label7.Size = new System.Drawing.Size(56, 15);
            this.label7.TabIndex = 19;
            this.label7.Text = "字体大小:";
            
            // label8
            this.label8.AutoSize = true;
            this.label8.Location = new System.Drawing.Point(415, 38);
            this.label8.Name = "label8";
            this.label8.Size = new System.Drawing.Size(56, 15);
            this.label8.TabIndex = 20;
            this.label8.Text = "条码类型:";
            
            // LabelDesignForm
            this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(580, 324);
            this.Controls.Add(this.label8);
            this.Controls.Add(this.label7);
            this.Controls.Add(this.label6);
            this.Controls.Add(this.label5);
            this.Controls.Add(this.label4);
            this.Controls.Add(this.label3);
            this.Controls.Add(this.label2);
            this.Controls.Add(this.label1);
            this.Controls.Add(this.btnAddText);
            this.Controls.Add(this.numFontSize);
            this.Controls.Add(this.numTextY);
            this.Controls.Add(this.numTextX);
            this.Controls.Add(this.txtText);
            this.Controls.Add(this.btnAddBarcode);
            this.Controls.Add(this.numHeight);
            this.Controls.Add(this.numWidth);
            this.Controls.Add(this.numY);
            this.Controls.Add(this.numX);
            this.Controls.Add(this.cmbBarcodeType);
            this.Controls.Add(this.txtBarcodeData);
            this.Controls.Add(this.pictureBoxPreview);
            this.Name = "LabelDesignForm";
            this.Text = "标签设计";
            ((System.ComponentModel.ISupportInitialize)(this.pictureBoxPreview)).EndInit();
            ((System.ComponentModel.ISupportInitialize)(this.numX)).EndInit();
            ((System.ComponentModel.ISupportInitialize)(this.numY)).EndInit();
            ((System.ComponentModel.ISupportInitialize)(this.numWidth)).EndInit();
            ((System.ComponentModel.ISupportInitialize)(this.numHeight)).EndInit();
            ((System.ComponentModel.ISupportInitialize)(this.numTextX)).EndInit();
            ((System.ComponentModel.ISupportInitialize)(this.numTextY)).EndInit();
            ((System.ComponentModel.ISupportInitialize)(this.numFontSize)).EndInit();
            this.ResumeLayout(false);
            this.PerformLayout();
        }
        #endregion
    }
}

2.9 配置文件 (App.config)

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <appSettings>
    <!-- 默认打印机名称，为空则使用系统默认 -->
    <add key="DefaultPrinter" value="" />
    
    <!-- 默认条码类型 -->
    <add key="DefaultBarcodeType" value="Code128" />
    
    <!-- 默认条码尺寸 -->
    <add key="DefaultWidth" value="300" />
    <add key="DefaultHeight" value="150" />
    
    <!-- 默认打印份数 -->
    <add key="DefaultCopies" value="1" />
    
    <!-- 标签边距 -->
    <add key="LabelMargin" value="10" />
    
    <!-- 是否显示条码文字 -->
    <add key="ShowBarcodeText" value="true" />
    
    <!-- 日志文件路径 -->
    <add key="LogFilePath" value="logs/barcode.log" />
  </appSettings>
</configuration>

三、NuGet 包依赖

在项目文件中添加以下 NuGet 包引用：

<PackageReference Include="ZXing.Net" Version="0.16.9" />

四、使用说明

4.1 基本使用

1. 输入条码数据（如：123456789012）
2. 选择条码类型（Code128、Code39、EAN13等）
3. 设置尺寸
4. 点击"生成"按钮
5. 点击"打印"按钮

4.2 批量打印

1. 点击"批量打印"按钮
2. 添加条码数据（可手动添加或从文件导入）
3. 设置条码类型和尺寸
4. 点击"开始批量打印"

4.3 标签设计

1. 点击"标签设计"按钮
2. 添加条码元素
3. 添加文字元素
4. 调整位置和大小
5. 预览效果

五、功能特点

• 支持多种条码格式：Code128、Code39、EAN13、UPC、ITF等
• 支持二维码：QR Code、DataMatrix、PDF417
• 批量打印：支持从文件导入大量条码数据
• 标签设计：可视化设计标签布局
• 打印预览：所见即所得的打印预览
• 打印机选择：支持选择指定打印机
• 多份打印：支持一次打印多份
• 日志记录：记录打印历史和错误信息