ZPL 打印机实例

ZPLII 语言编程基础 

链接:https://pan.baidu.com/s/1QTLnnBPgdje7bZ9xMublgQ
提取码:tfu9

 

0.打印条形码1

搬运出处: https://www.geek-share.com/detail/2623522761.html

code-----------------------------
^XA
^PW1000

^MD30

^LH0,0

#CN_DATA1#;|宋体|20|15|^FO150,0

#CN_DATA2#;|宋体|20|15|^FO650,0

^FO70,0^BY2.0,3.0^BCN,120,Y,N,N,A^FD#ID1#^FS

^FO570,0^BY2.0,3.0^BCN,120,Y,N,N,A^FD#ID2#^FS

^PQ1,0,1,Y

^XZ
code-----------------------------
说明------------------------------
^XA和^XZ:分别代表一个指令块的开始和结束, 是固定的东西。 ^PW:打印宽度,如果宽度较小,则会出现打印不全的效果。 ^MD:设置标签颜色的深度,取值范围为 -30 to 30,上面的指令将颜色调到了最深。 ^LH:设置条码纸的边距,本模板未进行设置。 以下以字符串abc^edf~L000001^L000002为例进行说明(abc、edf分别为汉字,L000001、L000002为条形码值) #CN_DATA1#:为abc的占位符。 #CN_DATA2#:为edf的占位符。 |宋体|20|15|:指字体为宋体,字符高度为20,宽度为15 ^FO:设置条码左上角的位置的坐标(70,0)。 ^BY:设置条形码显示样式, 这是该模板最重要的一个部分, 2.0是条码的缩放级别(可接受的数值:1-10点 ),这个数值下打出的条码很小, 3.0是条码中粗细柱的比例(可接受的数值:.0到3.0,增量0.1,对固定比例的条码无效 ), 120是条码高度。 ^BCN:是打印code128的指令。 ^FD:设置要打印的内容 ^FS:表示换行 #ID1#:指L000001 #ID2#:指L000002 ^PQ50,101,Y:打印总数50张标签每个序列号只打一张。打印每组数量是10,但在每组间不暂停。 ^PQ50,101,N:打印总数50张标签每个序列号只打一张。打印每数量是10,每组打印后暂停。 这里可以写成^PQ1,0,1,Y,即每次打印一张,不暂停。因为打印总张数可以在程序中进行控制。
说明------------------------------

效果: 

 

 

 

 

1. ZPL 二维码打印

 二维码打印

   ^XA 
      ^FO20,20
      ^BQ,2,10
      ^FDLA,0123456789ABCD 2D code^FS
   ^XZ

 10.二维码:^BQ
   ^BQ字段位置,模型,放大倍数(^BQ,2,10  无旋转,模型:增强,放大倍数:10^BQ =二维码条码
      a =字段位置 
         默认值:正常。 
         其他值: 没有旋转是可用的。^的FW命令不影响旋转。
     b =模型  默认值:2(增强) 推荐  其他值:1(原创)
     c =放大倍数  默认值:1在150 dpi打印机  2在200 dpi打印机 3在300 dpi打印机 其他值:4至10
        (c值不同条码大小不同)

 11.纠错能力:
    L级:约可纠错7%的数据码字
    M级:约可纠错15%的数据码字
    Q级:约可纠错25%的数据码字
    H级:约可纠错30%的数据码字

效果:

 

 

 

2.ZPL 设计预览

http://labelary.com/viewer.html

效果: 

 

3.打印条形码2

// 搬运: https://www.geek-share.com/detail/2755709722.html

// 准备:
// 1. 斑马打印机 型号GT820。
// 2. 斑马打印机驱动。
// 3. 库文件SMT.ZEBRA.dll 和 SMT.ZEBRA.dll的依赖库文件Fnthex32.dll。

步骤:
// 1。调试打印机,安装支持打印机的ZPL驱动(因为所打印标签的模板使用ZPL指令编写的,所以必须选择ZPL)。
// 打印机属性->测试页,打印成功说明调试成功。
// 2。注册 SMT.ZEBRA.dll 文件, cmd 右键->管理员权限运行-> regram 路径/SMT.ZEBRA.dll 。
// Fnthex32.dll库文件貌似不用注册,详见demo中readme.txt。
// 3。给予DLL文件运行权限。右键DLL文件->属性->安全->编辑->添加->everyone->确定->完全控制->确定。
// 4。项目引用 SMT.ZEBRA.dll ,Fnthex32.dll库文件也不用引用。


Imports System.Drawing.Printing.PrinterSettings  
Imports System.Drawing.Printing  
Imports System.Text.RegularExpressions  
  
Public Class TestZebraPrinterForm  
  
Private Sub TestZebraPrinterForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load  
Dim stringCollection As PrinterSettings.StringCollection = PrinterSettings.InstalledPrinters   '’得到已安装的打印机名字。  
Dim strPrinterName As String = String.Empty  
Dim regex As Regex = New Regex("^.*ZPL.*$")  '’new 一个正则表达式模板 ,^.*ZPL.*$ 代表包含ZPL的任意字符串。  
Dim itemValue As String = ""  
For Each strName As String In stringCollection  
strPrinterName = strName.ToString()  
Printer_ComboBox.Items.Add(strPrinterName)  '’添加到组合框。  
If regex.IsMatch(strPrinterName) Then '’判断是否满足模板。  
itemValue = strPrinterName  
End If  
Next  
Printer_ComboBox.SelectedText = itemValue  
  
End Sub  
  
Private Sub print_Button_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles print_Button.Click  
''实例化一个打印类  
Dim zebraPrinter As Smt.Zebra.ZebraPrinter = New Smt.Zebra.ZebraPrinter()  
  
For i = 0 To 2  
  
Dim str1 As String = "名称1:" + "内容"  
Dim str2 As String = "名称2:" + "内容"  
Dim str3 As String = "名称3:" + "内容"  
Dim str4 As String = "名称4:" + "内容"  
Dim str5 As String = "名称5:" + "内容"  
Dim str6 As String = "名称6:" + "内容"  
  
''定义一个标签值  
Dim barcode As String = "A" + "00000000" + i.ToString  
  
''按照格式,格式化成新的字符串  
'’str1 = String.Concat(" ", "^", " ", "~", str1)   ''双排条形码  
Dim Str As String = String.Concat(str1, "^", str2, "^", str3, "^", str4, "^", str5, "^", str6, "~", barcode)      '单排条形码  
''barcodeConfig.TXT:模板配置文件 或barcodeConfig.PRN  //一定要大写  
''Printer_ComboBox.Text:打印机名称  
Dim Path As String = "barcodeConfig.TXT"  
zebraPrinter.PrintLabEx(Path, Str, Printer_ComboBox.Text)  
Next  
End Sub  
End Class  

  下面是打印模板文件barcodeConfig.TXT。

^XA //开始  
  
^PW1000    //条码最大宽  
  
^MD30        //颜色深度  
  
^LH0,0  
  
#CN_DATA1#;|宋体|20|18|^FO100,60         //占位符    //FO横纵坐标  
#CN_DATA2#;|宋体|20|18|^FO520,60          //占位符  
#CN_DATA3#;|宋体|20|18|^FO100,130         //占位符  
#CN_DATA4#;|宋体|20|18|^FO520,130         //占位符  
#CN_DATA5#;|宋体|20|18|^FO100,200      //占位符  
#CN_DATA6#;|宋体|20|18|^FO520,200       //占位符  
  
//打印条码   //BY缩放大小,条码高度  //(^BCN,120,Y,N,N)打印不旋转的高度为100点的Code128条码。  
^FO280,320^BY4.0,3.0^BCN,120,Y,N,N,A^FD#ID1#^FS  
  
^PQ1,0,1,Y  
  
^XZ   //结束  

效果: 

 

 

 

 4.C#编程发送ZPL指令驱动斑马打印机打印标签

搬运地址: http://www.shangxi.xyz/autoinsurancedetail.aspx?id=29
代码下载地址: http://www.shangxi.xyz/upload/2018-04-06/30dc9ef2-59da-4b5c-8797-9f775e5b4d19.zip

 

5.C#调用斑马打印机打印条码标签(支持COM、LPT、USB、TCP连接方式和ZPL、EPL、CPCL指令)

搬运地址: https://blog.csdn.net/ldljlq/article/details/7338772
在批量打印商品标签时一般都要加上条码或图片,而这类应用大多是使用斑马打印机,所以我也遇到了怎么打印的问题。

一种办法是用标签设计软件做好模板,在标签设计软件中打印,这种办法不用写代码,但对我来说觉得不能接受,所以尝试代码解决问题。

网上搜索一番,找不到什么资料,基本都是说发送ZPL、EPL指令到打印机,而且还是COM/LPT口连接打印机。后来研究.net的打印类库,发现是用绘图方式打印至打印机的,也叫GDI打印,于是思路有了点突破,那我可以用报表工具画好标签,运行报表时,把结果输出位图,再发送至打印机。

后来又找到一种更好的办法,利用标签设计软件做好模板,打印至本地文件,把其中的ZPL、EPL指令拷贝出来,替换其中动态变化的内容为变量名,做成一个模板文本,在代码中动态替换变量,再把指令输出至打印机。

折腾了几天,终于把这两种思路都实现了,顺便解决了USB接口打印机的ZPL、EPL指令发送问题。

今天有点困,改天再详细讲解一下这两种思路的具体实现。

==============================================================================================================
如何获取标签设计软件输出至打印的ZPL指令?安装好打印机驱动,修改打印机端口,新建一个打印机端口,类型为本地端口,端口名称设置为C:\printer.log,再用标签设计软件打印一次,此文件中就有ZPL指令了。

 ==============================================================================================================

2012-06-02:发布代码ZebraPrintHelper.cs。

==============================================================================================================

2013-01-17:发布代码ZebraPrintHelper.cs,修正BUG,新增TCP打印支持Zebra无线打印QL320+系列打印机。已经生产环境实际应用,支持POS小票、吊牌、洗水唛、条码、文本混合标签打印。因涉及公司源码,只能截图VS解决方案给大家看。

==============================================================================================================

 

 ZebraPrintHelper类代码:

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.IO.Ports;
using System.Net.Sockets;
using System.Runtime.InteropServices;
using System.Text;
 
namespace Umisky.BarcodePrint.Core {
    /// <summary>
    /// 斑马打印助手,支持LPT/COM/USB/TCP四种模式,适用于标签、票据、条码打印。
    /// </summary>
    public static class ZebraPrintHelper {
 
        #region 定义私有字段
        /// <summary>
        /// 线程锁,防止多线程调用。
        /// </summary>
        private static object SyncRoot = new object();
        /// <summary>
        /// ZPL压缩字典
        /// </summary>
        private static List<KeyValue> compressDictionary = new List<KeyValue>();
        #endregion
 
        #region 定义属性
        public static float TcpLabelMaxHeightCM { get; set; }
        public static int TcpPrinterDPI { get; set; }
        public static string TcpIpAddress { get; set; }
        public static int TcpPort { get; set; }
        public static int Copies { get; set; }
        public static int Port { get; set; }
        public static string PrinterName { get; set; }
        public static bool IsWriteLog { get; set; }
        public static DeviceType PrinterType { get; set; }
        public static ProgrammingLanguage PrinterProgrammingLanguage { get; set; }
        /// <summary>
        /// 日志保存目录,WEB应用注意不能放在BIN目录下。
        /// </summary>
        public static string LogsDirectory { get; set; }
        public static byte[] GraphBuffer { get; set; }
        private static int GraphWidth { get; set; }
        private static int GraphHeight { get; set; }
        private static int RowSize {
            get {
                return (((GraphWidth) + 31) >> 5) << 2;
            }
        }
        private static int RowRealBytesCount {
            get {
                if ((GraphWidth % 8) > 0) {
                    return GraphWidth / 8 + 1;
                }
                else {
                    return GraphWidth / 8;
                }
            }
        }
        #endregion
 
        #region 静态构造方法
        static ZebraPrintHelper() {
            initCompressCode();
            Port = 1;
            GraphBuffer = new byte[0];
            IsWriteLog = false;
            LogsDirectory = "logs";
            PrinterProgrammingLanguage = ProgrammingLanguage.ZPL;
        }
 
        private static void initCompressCode() {
            //G H I J K L M N O P Q R S T U V W X Y        对应1,2,3,4……18,19。
            //g h i j k l m n o p q r s t u v w x y z      对应20,40,60,80……340,360,380,400。            
            for (int i = 0; i < 19; i++) {
                compressDictionary.Add(new KeyValue() { Key = Convert.ToChar(71 + i), Value = i + 1 });
            }
            for (int i = 0; i < 20; i++) {
                compressDictionary.Add(new KeyValue() { Key = Convert.ToChar(103 + i), Value = (i + 1) * 20 });
            }
        }
        #endregion
 
        #region 日志记录方法
        private static void WriteLog(string text, LogType logType) {
            string endTag = string.Format("\r\n{0}\r\n", new string('=', 80));
            string path = string.Format("{0}\\{1}-{2}.log", LogsDirectory, DateTime.Now.ToString("yyyy-MM-dd"), logType);
            if (!Directory.Exists(LogsDirectory)) {
                Directory.CreateDirectory(LogsDirectory);
            }
            if (logType == LogType.Error) {
                File.AppendAllText(path, string.Format("{0}{1}", text, endTag), Encoding.UTF8);
            }
            if (logType == LogType.Print) {
                File.AppendAllText(path, string.Format("{0}{1}", text, endTag), Encoding.UTF8);
            }
        }
 
        private static void WriteLog(byte[] bytes, LogType logType) {
            string endTag = string.Format("\r\n{0}\r\n", new string('=', 80));
            string path = string.Format("{0}\\{1}-{2}.log", LogsDirectory, DateTime.Now.ToString("yyyy-MM-dd"), logType);
            if (!Directory.Exists(LogsDirectory)) {
                Directory.CreateDirectory(LogsDirectory);
            }
            if (logType == LogType.Error) {
                File.AppendAllText(path, string.Format("{0}{1}", Encoding.UTF8.GetString(bytes), endTag), Encoding.UTF8);
            }
            if (logType == LogType.Print) {
                File.AppendAllText(path, string.Format("{0}{1}", Encoding.UTF8.GetString(bytes), endTag), Encoding.UTF8);
            }
        }
        #endregion
 
        #region 封装方法,方便调用。
        public static bool PrintWithCOM(string cmd, int port, bool isWriteLog) {
            PrinterType = DeviceType.COM;
            Port = port;
            IsWriteLog = isWriteLog;
            return PrintCommand(cmd);
        }
 
        public static bool PrintWithCOM(byte[] bytes, int port, bool isWriteLog) {
            PrinterType = DeviceType.COM;
            Port = port;
            IsWriteLog = isWriteLog;
            return PrintGraphics(bytes);
        }
 
        public static bool PrintWithLPT(string cmd, int port, bool isWriteLog) {
            PrinterType = DeviceType.LPT;
            Port = port;
            IsWriteLog = isWriteLog;
            return PrintCommand(cmd);
        }
 
        public static bool PrintWithLPT(byte[] bytes, int port, bool isWriteLog) {
            PrinterType = DeviceType.LPT;
            Port = port;
            IsWriteLog = isWriteLog;
            return PrintGraphics(bytes);
        }
 
        public static bool PrintWithTCP(string cmd, bool isWriteLog) {
            PrinterType = DeviceType.TCP;
            IsWriteLog = isWriteLog;
            return PrintCommand(cmd);
        }
 
        public static bool PrintWithTCP(byte[] bytes, bool isWriteLog) {
            PrinterType = DeviceType.TCP;
            IsWriteLog = isWriteLog;
            return PrintGraphics(bytes);
        }
 
        public static bool PrintWithDRV(string cmd, string printerName, bool isWriteLog) {
            PrinterType = DeviceType.DRV;
            PrinterName = printerName;
            IsWriteLog = isWriteLog;
            return PrintCommand(cmd);
        }
 
        public static bool PrintWithDRV(byte[] bytes, string printerName, bool isWriteLog) {
            PrinterType = DeviceType.DRV;
            PrinterName = printerName;
            IsWriteLog = isWriteLog;
            return PrintGraphics(bytes);
        }
        #endregion
 
        #region 打印ZPL、EPL、CPCL、TCP指令
        public static bool PrintCommand(string cmd) {
            lock (SyncRoot) {
                bool result = false;
                try {
                    switch (PrinterType) {
                        case DeviceType.COM:
                            result = comPrint(Encoding.Default.GetBytes(cmd));
                            break;
                        case DeviceType.LPT:
                            result = lptPrint(Encoding.Default.GetBytes(cmd));
                            break;
                        case DeviceType.DRV:
                            result = drvPrint(Encoding.Default.GetBytes(cmd));
                            break;
                        case DeviceType.TCP:
                            result = tcpPrint(Encoding.Default.GetBytes(cmd));
                            break;
                    }
                    if (!string.IsNullOrEmpty(cmd) && IsWriteLog) {
                        WriteLog(cmd, LogType.Print);
                    }
                }
                catch (Exception ex) {
                    //记录日志
                    if (IsWriteLog) {
                        WriteLog(string.Format("{0} => {1}\r\n{2}", DateTime.Now, ex.Message, ex), LogType.Error);
                    }
                    throw new Exception(ex.Message, ex);
                }
                finally {
                    GraphBuffer = new byte[0];
                }
                return result;
            }
        }
        #endregion
 
        #region 打印图像
        public static bool PrintGraphics(byte[] graph) {
            lock (SyncRoot) {
                bool result = false;
                try {
                    GraphBuffer = graph;
                    byte[] cmdBytes = new byte[0];
                    switch (PrinterProgrammingLanguage) {
                        case ProgrammingLanguage.ZPL:
                            cmdBytes = getZPLBytes();
                            break;
                        case ProgrammingLanguage.EPL:
                            cmdBytes = getEPLBytes();
                            break;
                        case ProgrammingLanguage.CPCL:
                            cmdBytes = getCPCLBytes();
                            break;
                    }
                    switch (PrinterType) {
                        case DeviceType.COM:
                            result = comPrint(cmdBytes);
                            break;
                        case DeviceType.LPT:
                            result = lptPrint(cmdBytes);
                            break;
                        case DeviceType.DRV:
                            result = drvPrint(cmdBytes);
                            break;
                        case DeviceType.TCP:
                            result = tcpPrint(cmdBytes);
                            break;
                    }
                    if (cmdBytes.Length > 0 && IsWriteLog) {
                        WriteLog(cmdBytes, LogType.Print);
                    }
                }
                catch (Exception ex) {
                    //记录日志
                    if (IsWriteLog) {
                        WriteLog(string.Format("{0} => {1}\r\n{2}", DateTime.Now, ex.Message, ex), LogType.Error);
                    }
                    throw new Exception(ex.Message, ex);
                }
                finally {
                    GraphBuffer = new byte[0];
                }
                return result;
            }
        }
        #endregion
 
        #region 打印指令
        private static bool drvPrint(byte[] cmdBytes) {
            bool result = false;
            try {
                if (!string.IsNullOrEmpty(PrinterName)) {
                    result = WinDrvPort.SendBytesToPrinter(PrinterName, cmdBytes);
                }
            }
            catch (Exception ex) {
                throw new Exception(ex.Message, ex);
            }
            return result;
        }
 
        private static bool comPrint(byte[] cmdBytes) {
            bool result = false;
            SerialPort com = new SerialPort(string.Format("{0}{1}", PrinterType, Port), 9600, Parity.None, 8, StopBits.One);
            try {
                com.Open();
                com.Write(cmdBytes, 0, cmdBytes.Length);
                result = true;
            }
            catch (Exception ex) {
                throw new Exception(ex.Message, ex);
            }
            finally {
                if (com.IsOpen) {
                    com.Close();
                }
            }
            return result;
        }
 
        private static bool lptPrint(byte[] cmdBytes) {
            return LptPort.Write(string.Format("{0}{1}", PrinterType, Port), cmdBytes);
        }
 
        private static bool tcpPrint(byte[] cmdBytes) {
            bool result = false;
            TcpClient tcp = null;
            try {
                tcp = TimeoutSocket.Connect(string.Empty, TcpIpAddress, TcpPort, 1000);
                tcp.SendTimeout = 1000;
                tcp.ReceiveTimeout = 1000;
                if (tcp.Connected) {
                    tcp.Client.Send(cmdBytes);
                    result = true;
                }
            }
            catch (Exception ex) {
                throw new Exception("打印失败,请检查打印机或网络设置。", ex);
            }
            finally {
                if (tcp != null) {
                    if (tcp.Client != null) {
                        tcp.Client.Close();
                        tcp.Client = null;
                    }
                    tcp.Close();
                    tcp = null;
                }
            }
            return result;
        }
        #endregion
 
        #region 生成ZPL图像打印指令
        private static byte[] getZPLBytes() {
            byte[] bmpData = getBitmapData();
            int bmpDataLength = bmpData.Length;
            for (int i = 0; i < bmpDataLength; i++) {
                bmpData[i] ^= 0xFF;
            }
            string textBitmap = string.Empty, copiesString = string.Empty;
            string textHex = BitConverter.ToString(bmpData).Replace("-", string.Empty);
            textBitmap = CompressLZ77(textHex);
            for (int i = 0; i < Copies; i++) {
                copiesString += "^XA^FO0,0^XGR:IMAGE.GRF,1,1^FS^XZ";
            }
            string text = string.Format("~DGR:IMAGE.GRF,{0},{1},{2}{3}^IDR:IMAGE.GRF",
                GraphHeight * RowRealBytesCount,
                RowRealBytesCount,
                textBitmap,
                copiesString);
            return Encoding.UTF8.GetBytes(text);
        }
        #endregion
 
        #region 生成EPL图像打印指令
        private static byte[] getEPLBytes() {
            byte[] buffer = getBitmapData();
            string text = string.Format("N\r\nGW{0},{1},{2},{3},{4}\r\nP{5},1\r\n",
                0,
                0,
                RowRealBytesCount,
                GraphHeight,
                Encoding.GetEncoding("iso-8859-1").GetString(buffer),
                Copies);
            return Encoding.GetEncoding("iso-8859-1").GetBytes(text);
        }
        #endregion
 
        #region 生成CPCL图像打印指令
        public static byte[] getCPCLBytes() {
            //GRAPHICS Commands
            //Bit-mapped graphics can be printed by using graphics commands. ASCII hex (hexadecimal) is
            //used for expanded graphics data (see example). Data size can be reduced to one-half by utilizing the
            //COMPRESSED-GRAPHICS commands with the equivalent binary character(s) of the hex data. When
            //using CG, a single 8 bit character is sent for every 8 bits of graphics data. When using EG two characters
            //(16 bits) are used to transmit 8 bits of graphics data, making EG only half as efficient. Since this data is
            //character data, however, it can be easier to handle and transmit than binary data.
            //Format:
            //{command} {width} {height} {x} {y} {data}
            //where:
            //{command}: Choose from the following:
            //EXPANDED-GRAPHICS (or EG): Prints expanded graphics horizontally.
            //VEXPANDED-GRAPHICS (or VEG): Prints expanded graphics vertically.
            //COMPRESSED-GRAPHICS (or CG): Prints compressed graphics horizontally.
            //VCOMPRESSED-GRAPHICS (or VCG): Prints compressed graphics vertically.
            //{width}: Byte-width of image.
            //{height} Dot-height of image.
            //{x}: Horizontal starting position.
            //{y}: Vertical starting position.
            //{data}: Graphics data.
            //Graphics command example
            //Input:
            //! 0 200 200 210 1
            //EG 2 16 90 45 F0F0F0F0F0F0F0F00F0F0F0F0F0F0F0F
            //F0F0F0F0F0F0F0F00F0F0F0F0F0F0F0F
            //FORM
            //PRINT
 
            byte[] bmpData = getBitmapData();
            int bmpDataLength = bmpData.Length;
            for (int i = 0; i < bmpDataLength; i++) {
                bmpData[i] ^= 0xFF;
            }
            string textHex = BitConverter.ToString(bmpData).Replace("-", string.Empty);
            string text = string.Format("! {0} {1} {2} {3} {4}\r\nEG {5} {6} {7} {8} {9}\r\nFORM\r\nPRINT\r\n",
                0, //水平偏移量
                TcpPrinterDPI, //横向DPI
                TcpPrinterDPI, //纵向DPI
                (int)(TcpLabelMaxHeightCM / 2.54f * TcpPrinterDPI), //标签最大像素高度=DPI*标签纸高度(英寸)
                Copies, //份数
                RowRealBytesCount, //图像的字节宽度
                GraphHeight, //图像的像素高度
                0, //横向的开始位置
                0, //纵向的开始位置
                textHex
                );
            return Encoding.UTF8.GetBytes(text);
        }
        #endregion
 
        #region 获取单色位图数据
        /// <summary>
        /// 
        /// </summary>
        /// <param name="pimage"></param>
        /// <returns></returns>
        public static Bitmap ConvertToGrayscale(Bitmap pimage) {
            Bitmap source = null;
 
            // If original bitmap is not already in 32 BPP, ARGB format, then convert
            if (pimage.PixelFormat != PixelFormat.Format32bppArgb) {
                source = new Bitmap(pimage.Width, pimage.Height, PixelFormat.Format32bppArgb);
                source.SetResolution(pimage.HorizontalResolution, pimage.VerticalResolution);
                using (Graphics g = Graphics.FromImage(source)) {
                    g.DrawImageUnscaled(pimage, 0, 0);
                }
            }
            else {
                source = pimage;
            }
 
            // Lock source bitmap in memory
            BitmapData sourceData = source.LockBits(new Rectangle(0, 0, source.Width, source.Height), ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
 
            // Copy image data to binary array
            int imageSize = sourceData.Stride * sourceData.Height;
            byte[] sourceBuffer = new byte[imageSize];
            Marshal.Copy(sourceData.Scan0, sourceBuffer, 0, imageSize);
 
            // Unlock source bitmap
            source.UnlockBits(sourceData);
 
            // Create destination bitmap
            Bitmap destination = new Bitmap(source.Width, source.Height, PixelFormat.Format1bppIndexed);
 
            // Lock destination bitmap in memory
            BitmapData destinationData = destination.LockBits(new Rectangle(0, 0, destination.Width, destination.Height), ImageLockMode.WriteOnly, PixelFormat.Format1bppIndexed);
 
            // Create destination buffer
            imageSize = destinationData.Stride * destinationData.Height;
            byte[] destinationBuffer = new byte[imageSize];
 
            int sourceIndex = 0;
            int destinationIndex = 0;
            int pixelTotal = 0;
            byte destinationValue = 0;
            int pixelValue = 128;
            int height = source.Height;
            int width = source.Width;
            int threshold = 500;
 
            // Iterate lines
            for (int y = 0; y < height; y++) {
                sourceIndex = y * sourceData.Stride;
                destinationIndex = y * destinationData.Stride;
                destinationValue = 0;
                pixelValue = 128;
 
                // Iterate pixels
                for (int x = 0; x < width; x++) {
                    // Compute pixel brightness (i.e. total of Red, Green, and Blue values)
                    pixelTotal = sourceBuffer[sourceIndex + 1] + sourceBuffer[sourceIndex + 2] + sourceBuffer[sourceIndex + 3];
                    if (pixelTotal > threshold) {
                        destinationValue += (byte)pixelValue;
                    }
                    if (pixelValue == 1) {
                        destinationBuffer[destinationIndex] = destinationValue;
                        destinationIndex++;
                        destinationValue = 0;
                        pixelValue = 128;
                    }
                    else {
                        pixelValue >>= 1;
                    }
                    sourceIndex += 4;
                }
                if (pixelValue != 128) {
                    destinationBuffer[destinationIndex] = destinationValue;
                }
            }
 
            // Copy binary image data to destination bitmap
            Marshal.Copy(destinationBuffer, 0, destinationData.Scan0, imageSize);
 
            // Unlock destination bitmap
            destination.UnlockBits(destinationData);
 
            // Dispose of source if not originally supplied bitmap
            if (source != pimage) {
                source.Dispose();
            }
 
            // Return
            return destination;
        }
        /// <summary>
        /// 获取单色位图数据(1bpp),不含文件头、信息头、调色板三类数据。
        /// </summary>
        /// <returns></returns>
        private static byte[] getBitmapData() {
            MemoryStream srcStream = new MemoryStream();
            MemoryStream dstStream = new MemoryStream();
            Bitmap srcBmp = null;
            Bitmap dstBmp = null;
            byte[] srcBuffer = null;
            byte[] dstBuffer = null;
            byte[] result = null;
            try {
                srcStream = new MemoryStream(GraphBuffer);
                srcBmp = Bitmap.FromStream(srcStream) as Bitmap;
                srcBuffer = srcStream.ToArray();
                GraphWidth = srcBmp.Width;
                GraphHeight = srcBmp.Height;
                //dstBmp = srcBmp.Clone(new Rectangle(0, 0, srcBmp.Width, srcBmp.Height), PixelFormat.Format1bppIndexed);
                dstBmp = ConvertToGrayscale(srcBmp);
                dstBmp.Save(dstStream, ImageFormat.Bmp);
                dstBuffer = dstStream.ToArray();
 
                int bfOffBits = BitConverter.ToInt32(dstBuffer, 10);
                result = new byte[GraphHeight * RowRealBytesCount];
 
                //读取时需要反向读取每行字节实现上下翻转的效果,打印机打印顺序需要这样读取。
                for (int i = 0; i < GraphHeight; i++) {
                    Array.Copy(dstBuffer, bfOffBits + (GraphHeight - 1 - i) * RowSize, result, i * RowRealBytesCount, RowRealBytesCount);
                }
            }
            catch (Exception ex) {
                throw new Exception(ex.Message, ex);
            }
            finally {
                if (srcStream != null) {
                    srcStream.Dispose();
                    srcStream = null;
                }
                if (dstStream != null) {
                    dstStream.Dispose();
                    dstStream = null;
                }
                if (srcBmp != null) {
                    srcBmp.Dispose();
                    srcBmp = null;
                }
                if (dstBmp != null) {
                    dstBmp.Dispose();
                    dstBmp = null;
                }
            }
            return result;
        }
        #endregion
 
        #region LZ77图像字节流压缩方法
        public static string CompressLZ77(string text) {
            //将转成16进制的文本进行压缩
            string result = string.Empty;
            char[] arrChar = text.ToCharArray();
            int count = 1;
            for (int i = 1; i < text.Length; i++) {
                if (arrChar[i - 1] == arrChar[i]) {
                    count++;
                }
                else {
                    result += convertNumber(count) + arrChar[i - 1];
                    count = 1;
                }
                if (i == text.Length - 1) {
                    result += convertNumber(count) + arrChar[i];
                }
            }
            return result;
        }
 
        public static string DecompressLZ77(string text) {
            string result = string.Empty;
            char[] arrChar = text.ToCharArray();
            int count = 0;
            for (int i = 0; i < arrChar.Length; i++) {
                if (isHexChar(arrChar[i])) {
                    //十六进制值
                    result += new string(arrChar[i], count == 0 ? 1 : count);
                    count = 0;
                }
                else {
                    //压缩码
                    int value = GetCompressValue(arrChar[i]);
                    count += value;
                }
            }
            return result;
        }
 
        private static int GetCompressValue(char c) {
            int result = 0;
            for (int i = 0; i < compressDictionary.Count; i++) {
                if (c == compressDictionary[i].Key) {
                    result = compressDictionary[i].Value;
                }
            }
            return result;
        }
 
        private static bool isHexChar(char c) {
            return c > 47 && c < 58 || c > 64 && c < 71 || c > 96 && c < 103;
        }
 
        private static string convertNumber(int count) {
            //将连续的数字转换成LZ77压缩代码,如000可用I0表示。
            string result = string.Empty;
            if (count > 1) {
                while (count > 0) {
                    for (int i = compressDictionary.Count - 1; i >= 0; i--) {
                        if (count >= compressDictionary[i].Value) {
                            result += compressDictionary[i].Key;
                            count -= compressDictionary[i].Value;
                            break;
                        }
                    }
                }
            }
            return result;
        }
        #endregion
    }
}

 

调用例子代码:

        private void BackgroundWorkerPrint_DoWork(object sender, DoWorkEventArgs e) {
            BackgroundWorker worker = sender as BackgroundWorker;
 
            int i = 0, nextRemainder = 0, count = this._listBarcodeData.Count;
            bool flag = true;
            float pageWidth, pageHeight;
            int dpiX, dpiY, perPaperFactor;
            string reportPath = string.Format(@"{0}/Reports/{1}", Application.StartupPath, this._modelType);
            PrintLog printLog = new PrintLog() { Operater = LoginName };
            PrinterSettings printerSettings = new PrinterSettings() { PrinterName = PrintParam, Copies = 1 };
 
            using (StreamReader tr = new StreamReader(this.ModelFilePath)) {
                XElement xe = XDocument.Load(tr).Root.Elements()
                    .Elements(XName.Get("ModelType")).First(x => x.Value == this._modelType).Parent;
                pageWidth = float.Parse(xe.Elements(XName.Get("PageWidth")).First().Value);
                pageHeight = float.Parse(xe.Elements(XName.Get("PageHeight")).First().Value);
                dpiX = int.Parse(xe.Elements(XName.Get("DotPerInchX")).First().Value);
                dpiY = int.Parse(xe.Elements(XName.Get("DotPerInchY")).First().Value);
                perPaperFactor = int.Parse(xe.Elements(XName.Get("PerPaperFactor")).First().Value);
                this._no = int.Parse(xe.Elements(XName.Get("NO")).First().Value);
            }
 
            using (LocalReportHelper printHelper = new LocalReportHelper(reportPath)) {
                printHelper.PrintTypeNO = this._no;
                printHelper.PrintLogInformation = printLog;
                printHelper.ExportImageDeviceInfo.DpiX = dpiX;
                printHelper.ExportImageDeviceInfo.DpiY = dpiY;
                printHelper.ExportImageDeviceInfo.PageWidth = pageWidth;
                printHelper.ExportImageDeviceInfo.PageHeight = pageHeight;
                foreach (BarcodeData bdCurrent in this._listBarcodeData) {
                    if (worker.CancellationPending == true) {
                        e.Cancel = true;
                        break;
                    }
                    else {
                        try {
                            DataSet dsCurrent = this.GetDataForPrinterByBarcode(bdCurrent.Barcode, bdCurrent.IncreaseType);
                            DataSet dsNext = null, dsPrevious = dsCurrent.Copy();
 
                            int amount = this._printType == 0 ? 1 : bdCurrent.Amount - nextRemainder;
                            int copies = amount / perPaperFactor;
                            int remainder = nextRemainder = amount % perPaperFactor;
 
                            Action<DataSet, int, string, int> actPrint = (ds, duplicates, barcodes, amountForLog) => {
                                printHelper.PrintLogInformation.Barcode = barcodes;
                                printHelper.PrintLogInformation.Amount = amountForLog;
                                if (this.PrintType == 0 && DeviceType == DeviceType.DRV) {
                                    printerSettings.Copies = (short)duplicates;
                                    printHelper.WindowsDriverPrint(printerSettings, dpiX, ds);
                                }
                                else {
                                    printHelper.OriginalPrint(DeviceType, ds, duplicates, PrintParam);
                                }
                            };
 
                            if (copies > 0) {
                                int amountForCopy = copies;
                                if (perPaperFactor > 1) {
                                    DataSet dsCurrentCopy = dsCurrent.CopyForBarcode();
                                    dsCurrent.Merge(dsCurrentCopy);
                                    amountForCopy = copies * perPaperFactor;
                                }
 
                                actPrint.Invoke(dsCurrent, copies, bdCurrent.Barcode, amountForCopy);
                            }
                            if (remainder > 0) {
                                int nextIndex = i + 1;
                                string barcodes = bdCurrent.Barcode;
                                if (nextIndex < count) {
                                    BarcodeData bdNext = this._listBarcodeData[nextIndex];
                                    dsNext = this.GetDataForPrinterByBarcode(bdNext.Barcode, bdNext.IncreaseType);
                                    dsPrevious.Merge(dsNext);
                                    barcodes += "," + bdNext.Barcode;
                                }
                                actPrint.Invoke(dsPrevious, 1, barcodes, 1);
                            }
                            worker.ReportProgress(i++, string.Format("正在生成 {0} 并输送往打印机...", bdCurrent.Barcode));
 
                            if (this._printType == 0) {
                                count = 1;
                                flag = true;
                                break;
                            }
                        }
                        catch (Exception ex) {
                            flag = false;
                            e.Result = ex.Message;
                            break;
                        }
                    }
                }
                if (!e.Cancel && flag) {
                    e.Result = string.Format("打印操作成功完成,共处理条码 {0} 条", count);
                }
            }
        }
 

LocalReportHelper类代码:

using System;
using System.Configuration;
using System.Data;
using System.Drawing;
using System.Drawing.Imaging;
using System.Drawing.Printing;
using System.IO;
using System.Text;
using System.Windows.Forms;
using Microsoft.Reporting.WinForms;
using Umisky.BarcodePrint.Core;
 
namespace Umisky.BarcodePrint.Codes {
    public class LocalReportHelper : IDisposable {
 
        #region Properties
 
        public String LocalReportPath { get; set; }
        public LocalReport LocalReportInstance { get; private set; }
        public GraphDeviceInfo ExportImageDeviceInfo { get; set; }
        public PrintLog PrintLogInformation { get; set; }
        public int PrintTypeNO { get; set; }
 
        #endregion
 
        private Stream _stream;
        private int _bmpDPI;
        private DataSet _ds;
 
        public LocalReportHelper(String reportPath)
            : this(reportPath, new GraphDeviceInfo() {
                ColorDepth = 1,
                DpiX = 203,
                DpiY = 203,
                PageWidth = 8f,
                PageHeight = 12.2f,
                MarginTop = 0.2f
            }) { }
 
        public LocalReportHelper(String reportPath, GraphDeviceInfo deviceInfo) {
            this._bmpDPI = 96;
 
            this.LocalReportPath = reportPath;
            this.ExportImageDeviceInfo = deviceInfo;
            this.LocalReportInstance = new LocalReport() { ReportPath = reportPath };
            this.LocalReportInstance.SubreportProcessing += new SubreportProcessingEventHandler(LocalReportInstance_SubreportProcessing);
        }
 
        private void LocalReportInstance_SubreportProcessing(object sender, SubreportProcessingEventArgs e) {
            foreach (DataTable dt in this._ds.Tables) {
                e.DataSources.Add(new ReportDataSource(dt.TableName, dt));
            }
        }
 
        public void Dispose() {
            this.ExportImageDeviceInfo = null;
            this.LocalReportInstance = null;
            this.LocalReportPath = null;
 
            this._ds = null;
        }
 
        public void AddReportParameter(string paramName, string value) {
            this.LocalReportInstance.SetParameters(new ReportParameter(paramName, value));
        }
 
        #region Export hang title image by reporting services
 
        private void AddWashIcones() {
            this.LocalReportInstance.EnableExternalImages = true;
            this.LocalReportInstance.SetParameters(new ReportParameter("AppPath", Application.StartupPath));
        }
 
        private void AddBarcodesAssembly() {
            this.LocalReportInstance.AddTrustedCodeModuleInCurrentAppDomain(ConfigurationManager.AppSettings["BarcodesAssembly"]);
        }
 
        private Stream CreateStreamCallBack(string name, string fileNameExtension, Encoding encoding, string mimeType, bool willSeek) {
            string tempFolderPath = string.Concat(Environment.GetEnvironmentVariable("TEMP"), "/");
            this._stream = new FileStream(string.Concat(tempFolderPath, name, ".", fileNameExtension), FileMode.Create);
            return this._stream;
        }
        private void Export() {
            if (string.IsNullOrEmpty(this.LocalReportPath) ||
                this.LocalReportInstance == null ||
                this.ExportImageDeviceInfo == null) {
                throw new InvalidExpressionException("Invalid parameters");
            }
            if (this.PrintTypeNO >= -1 || this.PrintTypeNO == -3) {
                this.AddBarcodesAssembly();
                if (this.PrintTypeNO >= 0) {
                    this.AddWashIcones();
                }
            }
            if (this.PrintTypeNO >= 0) {
                this.LocalReportInstance.DataSources.Clear();
                foreach (DataTable dt in this._ds.Tables) {
                    this.LocalReportInstance.DataSources.Add(new ReportDataSource(dt.TableName, dt));
                }
            }
            this.LocalReportInstance.Refresh();
 
            if (this._stream != null) {
                this._stream.Close();
                this._stream = null;
            }
            Warning[] warnings;
            this.LocalReportInstance.Render(
                "Image",
                this.ExportImageDeviceInfo.ToString(),
                PageCountMode.Actual,
                CreateStreamCallBack,
                out warnings);
            this._stream.Position = 0;
        }
        private void SaveLog() {
            using (Bitmap image = (Bitmap)Image.FromStream(this._stream)) {
                image.SetResolution(96, 96);
                using (MemoryStream ms = new MemoryStream()) {
                    image.Save(ms, ImageFormat.Jpeg);
                    this.PrintLogInformation.BarcodeImage = ms.ToArray();
                }
            }
            LogHelper.AddLog(this.PrintLogInformation);
            if (this._stream != null) {
                this._stream.Close();
                this._stream = null;
            }
        }
 
        #endregion
 
        #region Windows driver print
 
        private void PrintPage(object sender, PrintPageEventArgs ev) {
            Bitmap bmp = (Bitmap)Image.FromStream(this._stream);
            bmp.SetResolution(this._bmpDPI, this._bmpDPI);
            ev.Graphics.DrawImage(bmp, 0, 0);
            ev.HasMorePages = false;
        }
        /// <summary>
        /// Print by windows driver
        /// </summary>
        /// <param name="printerSettings">.net framework PrinterSettings class, including some printer information</param>
        /// <param name="bmpDPI">the bitmap image resoluation, dots per inch</param>
        public void WindowsDriverPrint(PrinterSettings printerSettings, int bmpDPI, DataSet ds) {
            this._ds = ds;
            this.Export();
            if (this._stream == null) {
                return;
            }
            this._bmpDPI = bmpDPI;
 
            PrintDocument printDoc = new PrintDocument();
            printDoc.DocumentName = "条码打印";
            printDoc.PrinterSettings = printerSettings;
            printDoc.PrintController = new StandardPrintController();
            if (!printDoc.PrinterSettings.IsValid) {
                if (this._stream != null) {
                    this._stream.Close();
                    this._stream = null;
                }
                MessageBox.Show("Printer found errors, Please contact your administrators!", "Print Error");
                return;
            }
            printDoc.PrintPage += new PrintPageEventHandler(PrintPage);
            printDoc.Print();
            this.SaveLog();
        }
 
        #endregion
 
        #region Original print
 
        /// <summary>
        /// Send the file to the printer or use the printer command
        /// </summary>
        /// <param name="deviceType">The port(LPT,COM,DRV) which the device connecting</param>
        /// <param name="copies">Total number for print</param>
        /// <param name="ds">The report datasource</param>
        /// <param name="printParam">Print parameters</param>
        /// <param name="printLanguage">The built-in printer programming language, you can choose EPL or ZPL</param>
        public void OriginalPrint(DeviceType deviceType,
            DataSet ds,
            int copies = 1,
            string printParam = null,
            ProgrammingLanguage printLanguage = ProgrammingLanguage.ZPL) {
            this._ds = ds;
            this.Export();
            if (this._stream == null) {
                return;
            }
            int port = 1;
            int.TryParse(printParam, out port);
            int length = (int)this._stream.Length;
            byte[] bytes = new byte[length];
            this._stream.Read(bytes, 0, length);
            ZebraPrintHelper.Copies = copies;
            ZebraPrintHelper.PrinterType = deviceType;
            ZebraPrintHelper.PrinterName = printParam;
            ZebraPrintHelper.Port = port;
            ZebraPrintHelper.PrinterProgrammingLanguage = printLanguage;
            ZebraPrintHelper.PrintGraphics(bytes);
            this.SaveLog();
        }
 
        #endregion
 
    }
}
View Code

效果: 

    

    

    

  

 

6.C#调用斑马打印机打印条码标签(支持COM、LPT、USB、TCP连接方式和ZPL、EPL、CPCL指令)

// 搬运来源: https://www.cnblogs.com/chengeng/p/6136185.html

// Printer IP Address and communication port
string ipAddress = "10.3.14.42";
int port = 9100;
 
// ZPL Command(s)
string ZPLString =
    "^XA" +
    "^FO50,50" +
    "^A0N50,50" +
    "^FDHello, World!^FS" +
    "^XZ";
 
try
{
    // Open connection
    System.Net.Sockets.TcpClient client = new System.Net.Sockets.TcpClient();
    client.Connect(ipAddress, port);
 
    // Write ZPL String to connection
    System.IO.StreamWriter writer =
new System.IO.StreamWriter(client.GetStream());
    writer.Write(ZPLString);
    writer.Flush();
 
    // Close Connection
    writer.Close();
    client.Close();
}
catch (Exception ex)
{
    // Catch Exception
}

 

7.C#通过命令发送的方式,实现斑马打印机zpl命令打印

搬运来源: https://blog.csdn.net/yfy9528/article/details/100989046?utm_medium=distribute.pc_relevant_t0.none-task-blog-BlogCommendFromMachineLearnPai2-1.channel_param&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-BlogCommendFromMachineLearnPai2-1.channel_param

效果: 在这里插入图片描述

  这是打印出来的效果。  
  开始拿代码来运行的时候会报错。解决办法如下

  如果出错,把86修改为64就解决了

  如果出错,把86修改为64就解决了

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.IO;

namespace Printer1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

    private void btn_print_Click(object sender, EventArgs e)
    {
        PrintZPL(txt_zpl.Text);
    }
    public bool PrintZPL(string zpl)
    {
        return RawPrinterHelper.SendStringToPrinter("ZDesigner ZT210-300dpi ZPL", zpl);
    }
    public class RawPrinterHelper
    {

        [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
        public struct DOCINFOW
        {
            [MarshalAs(UnmanagedType.LPWStr)]
            public string pDocName;

            [MarshalAs(UnmanagedType.LPWStr)]
            public string pOutputFile;

            [MarshalAs(UnmanagedType.LPWStr)]
            public string pDataType;
        }

        [DllImport("winspool.Drv", EntryPoint = "OpenPrinterW", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Unicode, SetLastError = true, ExactSpelling = true)]
        public static extern bool OpenPrinter(string src, ref IntPtr hPrinter, long pd);

        [DllImport("winspool.Drv", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Unicode, SetLastError = true, ExactSpelling = true)]
        public static extern bool ClosePrinter(IntPtr hPrinter);

        [DllImport("winspool.Drv", EntryPoint = "StartDocPrinterW", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Unicode, SetLastError = true, ExactSpelling = true)]
        public static extern bool StartDocPrinter(IntPtr hPrinter, int level, ref RawPrinterHelper.DOCINFOW pDI);

        [DllImport("winspool.Drv", EntryPoint = "EndDocPrinter", SetLastError = true, CharSet = CharSet.Unicode, ExactSpelling = true, CallingConvention = CallingConvention.Cdecl)]
        public static extern bool EndDocPrinter(IntPtr hPrinter);

        [DllImport("winspool.Drv", EntryPoint = "StartPagePrinter", SetLastError = true, CharSet = CharSet.Unicode, ExactSpelling = true, CallingConvention = CallingConvention.Cdecl)]
        public static extern bool StartPagePrinter(IntPtr hPrinter);

        [DllImport("winspool.Drv", EntryPoint = "EndPagePrinter", SetLastError = true, CharSet = CharSet.Unicode, ExactSpelling = true, CallingConvention = CallingConvention.Cdecl)]
        public static extern bool EndPagePrinter(IntPtr hPrinter);


        [DllImport("winspool.Drv", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Unicode, SetLastError = true, ExactSpelling = true)]
        public static extern bool WritePrinter(IntPtr hPrinter, IntPtr pBytes, int dwCount, ref int dwWritten);



        // SendBytesToPrinter()
        // When the function is given a printer name and an unmanaged array
        // of bytes, the function sends those bytes to the print queue.
        // Returns true on success, false on failure.
        public static bool SendBytesToPrinter(string szPrinterName, IntPtr pBytes, Int32 dwCount)
        {
            bool bSuccess = false; // Assume failure unless you specifically succeed.

            Int32 dwError = 0, dwWritten = 0;
            IntPtr hPrinter = System.IntPtr.Zero;// new IntPtr(0);

            DOCINFOW di = new DOCINFOW();
            di.pDocName = DateTime.Now.ToString("yyyymmddhhMMss") + DateTime.Now.Millisecond.ToString(); //"My C#.NET RAW Document";
            di.pDataType = "RAW";
            di.pOutputFile = null;

            // Open the printer..nNormalize()
            if (OpenPrinter(szPrinterName, ref hPrinter, 0))
            {
                // Start a document.
                if (StartDocPrinter(hPrinter, 1, ref di))
                {
                    // Start a page.
                    if (StartPagePrinter(hPrinter))
                    {
                        // Write your bytes.
                        bSuccess = WritePrinter(hPrinter, pBytes, dwCount, ref dwWritten);
                        EndPagePrinter(hPrinter);
                    }
                    EndDocPrinter(hPrinter);
                }
                ClosePrinter(hPrinter);
            }
            // If you did not succeed, GetLastError may give more information
            // about why not.
            if (bSuccess == false)
            {
                dwError = Marshal.GetLastWin32Error();
            }
            return bSuccess;
        }

        public static bool SendFileToPrinter(string szPrinterName, string szFileName)
        {
            bool bSuccess = false;

            // Open the file.
            FileStream fs = new FileStream(szFileName, FileMode.Open);
            try
            {
                // Create a BinaryReader on the file.
                BinaryReader br = new BinaryReader(fs, System.Text.Encoding.Default);

                // Dim an array of bytes big enough to hold the file's contents.
                Byte[] bytes = new Byte[fs.Length];

                // Your unmanaged pointer.
                IntPtr pUnmanagedBytes = new IntPtr(0);

                int nLength;
                nLength = Convert.ToInt32(fs.Length);

                // Read the contents of the file into the array.
                bytes = br.ReadBytes(nLength);

                // Allocate some unmanaged memory for those bytes.
                pUnmanagedBytes = Marshal.AllocCoTaskMem(nLength);

                // Copy the managed byte array into the unmanaged array.
                Marshal.Copy(bytes, 0, pUnmanagedBytes, nLength);

                // Send the unmanaged bytes to the printer.
                bSuccess = SendBytesToPrinter(szPrinterName, pUnmanagedBytes, nLength);
                // Free the unmanaged memory that you allocated earlier.
                Marshal.FreeCoTaskMem(pUnmanagedBytes);
                return bSuccess;
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
                return bSuccess;
            }
            finally
            {
                if (fs != null)
                {
                    fs.Close();
                }
            }
        }

        public static bool SendStringToPrinter(string szPrinterName, string szString)
        {
            IntPtr pBytes;
            Int32 dwCount;
            // How many characters are in the string?
            dwCount = szString.Length;
            // Assume that the printer is expecting ANSI text, and then convert
            // the string to ANSI text.
            pBytes = Marshal.StringToCoTaskMemAnsi(szString);
            // Send the converted ANSI string to the printer.
            SendBytesToPrinter(szPrinterName, pBytes, dwCount);
            Marshal.FreeCoTaskMem(pBytes);
            return true;
        }

    }
}

 

8.C# 简单的ZEBRA标签打印程序 

搬运出处: https://blog.csdn.net/jianmtao/article/details/7324351?utm_medium=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-1.channel_param&depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-1.channel_param

Zebra打印机有专用的的语言ZPL,简单的使用C#编程打印方法:

1. 写ZPL脚本,定义好相关打印格式,数据名,等,此保存为txt格式即可

脚本可以用BARONE5.0程序生成,

2. 通过C#程序,操作脚本txt文件,将需要打印的数据替换进脚本

C#如何操作txt,简单的不要再说了

3. 将此脚本通过DOS copy的方法,直接copy到ZEBRA的LPT口即可

            //将脚本送到打印口
            Process cmd = new Process();
            cmd.StartInfo.FileName = "cmd.exe";
            cmd.StartInfo.Arguments = "/c copy script-go.txt LPT1 ";
            cmd.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
            cmd.Start();
            while (true)
            {
                if (cmd.HasExited)
                {
                    break;
                }
                System.Threading.Thread.Sleep(400);
            }

完整实例:

打印标签,替换4点为1点,通过code取得名称,etc

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.OleDb;
using System.IO;
using System.Diagnostics;

namespace LabelPrint
{
    public partial class Main : Form
    {
        public Main()
        {
            InitializeComponent();
            //using skin
            Sunisoft.IrisSkin.SkinEngine MySkin;
            MySkin = new Sunisoft.IrisSkin.SkinEngine(this);
            MySkin.SkinFile = "MacOS.ssk";
        }     

        //产生脚本的函数,将script内代码读取,参数替换,并生成新的script-go.txt
        private string ScriptStr, F_ScriptStr;
        private void ScriptGen()
        {
            StreamReader SR = new StreamReader("script.txt");
            ScriptStr = SR.ReadToEnd();
            SR.Close();
            F_ScriptStr = ScriptStr.Replace("$sn$", F_SN);
            F_ScriptStr = F_ScriptStr.Replace("$itemcode$", F_IC);
            F_ScriptStr = F_ScriptStr.Replace("$itemname$", F_IN);
            //得到修改后的字符串F_ScriptStr

            //生成新的txt文件
            File.Delete("script-go.txt");
            StreamWriter SW = new StreamWriter("script-go.txt", true);
            SW.Write(F_ScriptStr);
            SW.Close();
        }

        //输入框内的SN,输入框内的ItemCode,最终SN,最终ItemCode,最终ItemName
        private string SN, IC, F_SN, F_IC, F_IN;
        private void buttonPrint_Click_1(object sender, EventArgs e)
        {
            SN = textBoxSN.Text;
            IC = textBoxCode.Text;

            int SN_Len, IC_Len;
            SN_Len = SN.Length;
            IC_Len = IC.Length;

            //判断输入框内是否输入数据,数据位数是否正确
            if (SN_Len != 11)
            {
                MessageBox.Show("! Wrong : Please check the SN");
                textBoxSN.Focus();
                textBoxSN.SelectAll();
                return;
            }
            if (IC_Len < 11)
            {
                MessageBox.Show("! Wrong : Please check the itemcode");
                textBoxCode.Focus();
                textBoxCode.SelectAll();
                return;
            }

            //取出Itemcode的“4点”
            string F_IC1, F_IC2;
            F_SN = SN;
            F_IC1 = IC.Substring(0, 8);//已经包含"."

            switch (IC_Len)
            {
                case 11:
                    F_IC2 = IC.Substring(8, 3);
                    F_IC = F_IC1 + F_IC2;
                    break;

                case 12:
                    F_IC2 = IC.Substring(8, 4);
                    F_IC = F_IC1 + F_IC2;
                    break;

                case 14:
                    F_IC2 = IC.Substring(11, 3);
                    F_IC = F_IC1 + F_IC2;
                    break;

                case 15:
                    F_IC2 = IC.Substring(11, 4);
                    F_IC = F_IC1 + F_IC2;
                    break;

                default:
                    MessageBox.Show("! Wrong : Please check the itemcode");
                    textBoxCode.Focus();
                    textBoxCode.SelectAll();
                    break;
            }
            //这里已经得到最终的 F_SN 和 F_IC

            //下面连接数据库,核对输入的F_IC,得到对应的ItemName, F_IN          
            string Connstr = "Provider = Microsoft.Jet.OLEDB.4.0; Jet OLEDB:Database Password=rctool;Data Source = convert.mdb";
            OleDbConnection Conn = new OleDbConnection(Connstr);
            Conn.Open();
            string CMDStr = "SELECT * FROM cvn WHERE code='" + F_IC + "'";
            OleDbCommand CMD = new OleDbCommand(CMDStr, Conn);
            OleDbDataReader dr = CMD.ExecuteReader();
            if (dr.HasRows == false)
            {
                MessageBox.Show("This code doesn't exist in database");
                Conn.Close();
                textBoxCode.Focus();
                textBoxCode.SelectAll();
                return;
            }
            if (dr.HasRows == true)
            {
                dr.Read();
                F_IN = dr["name"].ToString();
                Conn.Close();
            }
            //这里已经得到最终的 F_IN
            //至此F_SN,F_IC,F_IN已经全部得到

            //下面开始输出这些参数,生成新的打印脚本script-go.txt,脚本默认产生在程序目录下面
            ScriptGen();

            //下面将此脚本送到打印口
            Process cmd = new Process();
            cmd.StartInfo.FileName = "cmd.exe";
            cmd.StartInfo.Arguments = "/c copy script-go.txt LPT1 ";
            cmd.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
            cmd.Start();
            while (true)
            {
                if (cmd.HasExited)
                {
                    break;
                }
                System.Threading.Thread.Sleep(400);
            }
            textBoxCode.Clear();
            textBoxSN.Focus();
            textBoxSN.SelectAll();
        }


       
    }
}

 

9.在发送给Zebra打印机之前,使用.NET WinForm打印预览ZPL II命令

我有一个.NET Windows应用程序,使用ZPL II或EPL2向Zebra打印机打印命令.
在直接从Zebra打印机打印之前,是否有任何方式打印预览表格中的数据?
 
看看 Labelary web service,它允许您以编程方式将ZPL转换为图像.

只需构建一个包含您要呈现的ZPL的URL,从Web服务器获取图像,并从应用程序中向用户显示图像.

string zpl = "YOUR ZPL HERE";
string url = "http://api.labelary.com/v1/printers/8dpmm/labels/4x6/0/" + zpl;
using (WebClient client = new WebClient()) {
    client.DownloadFile(url, "zpl.png");
}

 

10.把图像转换成斑马打印机的命令

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;

namespace EHX.QrCode
{
    /// <summary>
    /// 斑马工具类,把图像转换成斑马打印机的命令
    /// </summary>
    public class ZebraUnity
    {
        #region 定义私有字段
        /// <summary>
        /// 线程锁,防止多线程调用。
        /// </summary>
        private static object SyncRoot = new object();
        /// <summary>
        /// ZPL压缩字典
        /// </summary>
        private static List<KeyValuePair<char, int>> compressDictionary = new List<KeyValuePair<char, int>>();
        #endregion

        #region 构造方法

        static ZebraUnity()
        {
            InitCompressCode();
        }

        #endregion

        #region 定义属性
        /// <summary>
        /// 图像的二进制数据
        /// </summary>
        public static byte[] GraphBuffer { get; set; }
        /// <summary>
        /// 图像的宽度
        /// </summary>
        private static int GraphWidth { get; set; }
        /// <summary>
        /// 图像的高度
        /// </summary>
        private static int GraphHeight { get; set; }
        private static int RowSize
        {
            get
            {
                return (((GraphWidth) + 31) >> 5) << 2;
            }
        }
        /// <summary>
        /// 每行的字节数
        /// </summary>
        private static int RowRealBytesCount
        {
            get
            {
                if ((GraphWidth % 8) > 0)
                {
                    return GraphWidth / 8 + 1;
                }
                else
                {
                    return GraphWidth / 8;
                }
            }
        }
        #endregion

        #region 位图转斑马指令字符串
        /// <summary>
        /// 位图转斑马指令字符串
        /// </summary>
        /// <param name="bitmap">位图数据</param>
        /// <param name="totalBytes">总共的字节数</param>
        /// <param name="rowBytes">每行的字节数</param>
        /// <returns>斑马ZPL 2命令</returns>
        public static string BmpToZpl(byte[] bitmap, out int totalBytes, out int rowBytes)
        {
            try
            {
                GraphBuffer = bitmap;
                byte[] bmpData = getBitmapData();
                string textHex = BitConverter.ToString(bmpData).Replace("-", string.Empty);
                string textBitmap = CompressLZ77(textHex);
                totalBytes = GraphHeight * RowRealBytesCount;
                rowBytes = RowRealBytesCount;
                return textBitmap;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }

        /// <summary>
        /// 位图转ZPL指令
        /// </summary>
        /// <param name="bitmap">位图</param>
        /// <param name="totalBytes">返回参数总共字节数</param>
        /// <param name="rowBytes">返回参数每行的字节数</param>
        /// <returns>ZPL命令</returns>
        public static string BmpToZpl(Image bitmap, out int totalBytes, out int rowBytes)
        {
            using (MemoryStream stream = new MemoryStream())
            {
                bitmap.Save(stream, ImageFormat.Bmp);
                return BmpToZpl(stream.ToArray(), out totalBytes, out rowBytes);
            }
        }

        /// <summary>
        /// 根据图片生成图片的ASCII 十六进制
        /// </summary>
        /// <param name="sourceBmp">原始图片</param>
        /// <param name="totalBytes">总共字节数</param>
        /// <param name="rowBytes">每行的字节数</param>
        /// <returns>ASCII 十六进制</returns>
        public static string BitmapToHex(Image sourceBmp, out int totalBytes, out int rowBytes)
        {
            // 转成单色图
            Bitmap grayBmp = ConvertToGrayscale(sourceBmp as Bitmap);
            // 锁定位图数据    
            Rectangle rect = new Rectangle(0, 0, grayBmp.Width, grayBmp.Height);
            System.Drawing.Imaging.BitmapData bmpData = grayBmp.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadWrite, grayBmp.PixelFormat);
            // 获取位图数据第一行的起始地址     
            IntPtr ptr = bmpData.Scan0;
            // 定义数组以存放位图的字节流数据      
            // 处理像素宽对应的字节数,如不为8的倍数,则对最后一个字节补0    
            int width = (int)Math.Ceiling(grayBmp.Width / 8.0);
            // 获取位图实际的字节宽,这个值因为要考虑4的倍数关系,可能大于width  
            int stride = Math.Abs(bmpData.Stride);
            // 计算位图数据实际所占的字节数,并定义数组      
            int bitmapDataLength = stride * grayBmp.Height;
            byte[] ImgData = new byte[bitmapDataLength];
            // 从位图文件复制图像数据到数组,从实际图像数据的第一行开始;因ptr指针而无需再考虑行倒序存储的处理          
            System.Runtime.InteropServices.Marshal.Copy(ptr, ImgData, 0, bitmapDataLength);
            // 计算异或操作数,以处理包含图像数据但又有补0操作的那个字节         
            byte mask = 0xFF;
            // 计算这个字节补0的个数       
            //int offset = 8 * width - grayBmp.Width;
            int offset = 8 - (grayBmp.Width % 8);
            //offset %= 8;
            offset = offset % 8;
            // 按补0个数对0xFF做相应位数的左移位操作           
            mask <<= (byte)offset;
            // 图像反色处理        
            for (int j = 0; j < grayBmp.Height; j++)
            {
                for (int i = 0; i < stride; i++)
                {
                    if (i < width - 1) //无补0的图像数据
                    {
                        ImgData[j * stride + i] ^= 0xFF;
                    }
                    else if (i == width - 1) //有像素的最后一个字节,可能有补0   
                    {
                        ImgData[j * stride + i] ^= mask;
                    }
                    else  //为满足行字节宽为4的倍数而最后补的字节        
                    {
                        //ImgData[j * stride + i] = 0x00;
                        ImgData[j * stride + i] ^= 0x00;
                    }
                }
            }
            // 将位图数据转换为16进制的ASCII字符          
            string zplString = BitConverter.ToString(ImgData);
            zplString = CompressLZ77(zplString.Replace("-", string.Empty));
            totalBytes = bitmapDataLength;
            rowBytes = stride;
            return zplString;
        }
        #endregion

        #region 获取单色位图数据
        /// <summary>
        /// 获取单色位图数据
        /// </summary>
        /// <param name="pimage"></param>
        /// <returns></returns>
        private static Bitmap ConvertToGrayscale(Bitmap pimage)
        {
            Bitmap source = null;

            // If original bitmap is not already in 32 BPP, ARGB format, then convert
            if (pimage.PixelFormat != PixelFormat.Format32bppArgb)
            {
                source = new Bitmap(pimage.Width, pimage.Height, PixelFormat.Format32bppArgb);
                source.SetResolution(pimage.HorizontalResolution, pimage.VerticalResolution);
                using (Graphics g = Graphics.FromImage(source))
                {
                    g.DrawImageUnscaled(pimage, 0, 0);
                }
            }
            else
            {
                source = pimage;
            }

            // Lock source bitmap in memory
            BitmapData sourceData = source.LockBits(new Rectangle(0, 0, source.Width, source.Height), ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);

            // Copy image data to binary array
            int imageSize = sourceData.Stride * sourceData.Height;
            byte[] sourceBuffer = new byte[imageSize];
            Marshal.Copy(sourceData.Scan0, sourceBuffer, 0, imageSize);

            // Unlock source bitmap
            source.UnlockBits(sourceData);

            // Create destination bitmap
            Bitmap destination = new Bitmap(source.Width, source.Height, PixelFormat.Format1bppIndexed);

            // Lock destination bitmap in memory
            BitmapData destinationData = destination.LockBits(new Rectangle(0, 0, destination.Width, destination.Height), ImageLockMode.WriteOnly, PixelFormat.Format1bppIndexed);

            // Create destination buffer
            imageSize = destinationData.Stride * destinationData.Height;
            byte[] destinationBuffer = new byte[imageSize];

            int sourceIndex = 0;
            int destinationIndex = 0;
            int pixelTotal = 0;
            byte destinationValue = 0;
            int pixelValue = 128;
            int height = source.Height;
            int width = source.Width;
            int threshold = 500;

            // Iterate lines
            for (int y = 0; y < height; y++)
            {
                sourceIndex = y * sourceData.Stride;
                destinationIndex = y * destinationData.Stride;
                destinationValue = 0;
                pixelValue = 128;

                // Iterate pixels
                for (int x = 0; x < width; x++)
                {
                    // Compute pixel brightness (i.e. total of Red, Green, and Blue values)
                    pixelTotal = sourceBuffer[sourceIndex + 1] + sourceBuffer[sourceIndex + 2] + sourceBuffer[sourceIndex + 3];
                    if (pixelTotal > threshold)
                    {
                        destinationValue += (byte)pixelValue;
                    }
                    if (pixelValue == 1)
                    {
                        destinationBuffer[destinationIndex] = destinationValue;
                        destinationIndex++;
                        destinationValue = 0;
                        pixelValue = 128;
                    }
                    else
                    {
                        pixelValue >>= 1;
                    }
                    sourceIndex += 4;
                }
                if (pixelValue != 128)
                {
                    destinationBuffer[destinationIndex] = destinationValue;
                }
            }

            // Copy binary image data to destination bitmap
            Marshal.Copy(destinationBuffer, 0, destinationData.Scan0, imageSize);

            // Unlock destination bitmap
            destination.UnlockBits(destinationData);

            // Dispose of source if not originally supplied bitmap
            if (source != pimage)
            {
                source.Dispose();
            }

            // Return
            return destination;
        }
        /// <summary>
        /// 获取单色位图数据(1bpp),不含文件头、信息头、调色板三类数据。
        /// </summary>
        /// <returns></returns>
        private static byte[] getBitmapData()
        {
            MemoryStream srcStream = new MemoryStream();
            MemoryStream dstStream = new MemoryStream();
            Bitmap srcBmp = null;
            Bitmap dstBmp = null;
            byte[] srcBuffer = null;
            byte[] dstBuffer = null;
            byte[] result = null;
            try
            {
                srcStream = new MemoryStream(GraphBuffer);
                srcBmp = Bitmap.FromStream(srcStream) as Bitmap;
                srcBuffer = srcStream.ToArray();
                GraphWidth = srcBmp.Width;
                GraphHeight = srcBmp.Height;
                //dstBmp = srcBmp.Clone(new Rectangle(0, 0, srcBmp.Width, srcBmp.Height), PixelFormat.Format1bppIndexed);
                dstBmp = ConvertToGrayscale(srcBmp);
                dstBmp.Save(dstStream, ImageFormat.Bmp);
                dstBuffer = dstStream.ToArray();

                result = dstBuffer;

                int bfOffBits = BitConverter.ToInt32(dstBuffer, 10);
                result = new byte[GraphHeight * RowRealBytesCount];

                ////读取时需要反向读取每行字节实现上下翻转的效果,打印机打印顺序需要这样读取。
                for (int i = 0; i < GraphHeight; i++)
                {
                    int sindex = bfOffBits + (GraphHeight - 1 - i) * RowSize;
                    int dindex = i * RowRealBytesCount;
                    Array.Copy(dstBuffer, sindex, result, dindex, RowRealBytesCount);
                }

                for (int i = 0; i < result.Length; i++)
                {
                    result[i] ^= 0xFF;
                }
            }
            catch (Exception ex)
            {
                throw new Exception(ex.Message, ex);
            }
            finally
            {
                if (srcStream != null)
                {
                    srcStream.Dispose();
                    srcStream = null;
                }
                if (dstStream != null)
                {
                    dstStream.Dispose();
                    dstStream = null;
                }
                if (srcBmp != null)
                {
                    srcBmp.Dispose();
                    srcBmp = null;
                }
                if (dstBmp != null)
                {
                    dstBmp.Dispose();
                    dstBmp = null;
                }
            }
            return result;
        }
        #endregion

        #region LZ77图像字节流压缩方法
        private static string CompressLZ77(string text)
        {
            //将转成16进制的文本进行压缩
            string result = string.Empty;
            char[] arrChar = text.ToCharArray();
            int count = 1;
            for (int i = 1; i < text.Length; i++)
            {
                if (arrChar[i - 1] == arrChar[i])
                {
                    count++;
                }
                else
                {
                    result += convertNumber(count) + arrChar[i - 1];
                    count = 1;
                }
                if (i == text.Length - 1)
                {
                    result += convertNumber(count) + arrChar[i];
                }
            }
            return result;
        }

        private static string DecompressLZ77(string text)
        {
            string result = string.Empty;
            char[] arrChar = text.ToCharArray();
            int count = 0;
            for (int i = 0; i < arrChar.Length; i++)
            {
                if (isHexChar(arrChar[i]))
                {
                    //十六进制值
                    result += new string(arrChar[i], count == 0 ? 1 : count);
                    count = 0;
                }
                else
                {
                    //压缩码
                    int value = GetCompressValue(arrChar[i]);
                    count += value;
                }
            }
            return result;
        }

        private static int GetCompressValue(char c)
        {
            int result = 0;
            for (int i = 0; i < compressDictionary.Count; i++)
            {
                if (c == compressDictionary[i].Key)
                {
                    result = compressDictionary[i].Value;
                }
            }
            return result;
        }

        private static bool isHexChar(char c)
        {
            return c > 47 && c < 58 || c > 64 && c < 71 || c > 96 && c < 103;
        }

        private static string convertNumber(int count)
        {
            //将连续的数字转换成LZ77压缩代码,如000可用I0表示。
            string result = string.Empty;
            if (count > 1)
            {
                while (count > 0)
                {
                    for (int i = compressDictionary.Count - 1; i >= 0; i--)
                    {
                        if (count >= compressDictionary[i].Value)
                        {
                            result += compressDictionary[i].Key;
                            count -= compressDictionary[i].Value;
                            break;
                        }
                    }
                }
            }
            return result;
        }

        private static void InitCompressCode()
        {
            //G H I J K L M N O P Q R S T U V W X Y        对应1,2,3,4……18,19。
            //g h i j k l m n o p q r s t u v w x y z      对应20,40,60,80……340,360,380,400。            
            for (int i = 0; i < 19; i++)
            {
                compressDictionary.Add(new KeyValuePair<char, int> (Convert.ToChar(71 + i), i + 1 ));
            }
            for (int i = 0; i < 20; i++)
            {
                compressDictionary.Add(new KeyValuePair<char, int>(Convert.ToChar(103 + i), (i + 1) * 20));
            }
        }
        #endregion
    }
}
View Code

 

11.网络打印 C#代码

// Printer IP Address and communication port
string ipAddress = "10.3.14.42";
int port = 9100;
 
// ZPL Command(s)
string ZPLString =
    "^XA" +
    "^FO50,50" +
    "^A0N50,50" +
    "^FDHello, World!^FS" +
    "^XZ";
 
try
{
    // Open connection
    System.Net.Sockets.TcpClient client = new System.Net.Sockets.TcpClient();
    client.Connect(ipAddress, port);
 
    // Write ZPL String to connection
    System.IO.StreamWriter writer =
new System.IO.StreamWriter(client.GetStream());
    writer.Write(ZPLString);
    writer.Flush();
 
    // Close Connection
    writer.Close();
    client.Close();
}
catch (Exception ex)
{
    // Catch Exception
}

 

 

posted @ 2020-11-11 10:58  小小小光子  阅读(7347)  评论(0编辑  收藏  举报