C#實現用于生成條形碼的類

2020-01-24 02:06:35
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本文實例講述了C#實現用于生成條形碼的類。分享給大家供大家參考。具體如下：
這個C#類可以用來生成39碼 12位標準條形碼
using System.Collections;using System.Text.RegularExpressions;namespace DotNet.Utilities{  public class BarCodeToHTML  {    public static string get39(string s, int width, int height)    {      Hashtable ht = new Hashtable();      #region 39碼 12位      ht.Add('A', "110101001011");      ht.Add('B', "101101001011");      ht.Add('C', "110110100101");      ht.Add('D', "101011001011");      ht.Add('E', "110101100101");      ht.Add('F', "101101100101");      ht.Add('G', "101010011011");      ht.Add('H', "110101001101");      ht.Add('I', "101101001101");      ht.Add('J', "101011001101");      ht.Add('K', "110101010011");      ht.Add('L', "101101010011");      ht.Add('M', "110110101001");      ht.Add('N', "101011010011");      ht.Add('O', "110101101001");      ht.Add('P', "101101101001");      ht.Add('Q', "101010110011");      ht.Add('R', "110101011001");      ht.Add('S', "101101011001");      ht.Add('T', "101011011001");      ht.Add('U', "110010101011");      ht.Add('V', "100110101011");      ht.Add('W', "110011010101");      ht.Add('X', "100101101011");      ht.Add('Y', "110010110101");      ht.Add('Z', "100110110101");      ht.Add('0', "101001101101");      ht.Add('1', "110100101011");      ht.Add('2', "101100101011");      ht.Add('3', "110110010101");      ht.Add('4', "101001101011");      ht.Add('5', "110100110101");      ht.Add('6', "101100110101");      ht.Add('7', "101001011011");      ht.Add('8', "110100101101");      ht.Add('9', "101100101101");      ht.Add('+', "100101001001");      ht.Add('-', "100101011011");      ht.Add('*', "100101101101");      ht.Add('/', "100100101001");      ht.Add('%', "101001001001");      ht.Add('$', "100100100101");      ht.Add('.', "110010101101");      ht.Add(' ', "100110101101");      #endregion      #region 39碼 9位      //ht.Add('0', "000110100");      //ht.Add('1', "100100001");      //ht.Add('2', "001100001");      //ht.Add('3', "101100000");      //ht.Add('4', "000110001");      //ht.Add('5', "100110000");      //ht.Add('6', "001110000");      //ht.Add('7', "000100101");      //ht.Add('8', "100100100");      //ht.Add('9', "001100100");      //ht.Add('A', "100001001");      //ht.Add('B', "001001001");      //ht.Add('C', "101001000");      //ht.Add('D', "000011001");      //ht.Add('E', "100011000");      //ht.Add('F', "001011000");      //ht.Add('G', "000001101");      //ht.Add('H', "100001100");      //ht.Add('I', "001001100");      //ht.Add('J', "000011100");      //ht.Add('K', "100000011");      //ht.Add('L', "001000011");      //ht.Add('M', "101000010");      //ht.Add('N', "000010011");      //ht.Add('O', "100010010");      //ht.Add('P', "001010010");      //ht.Add('Q', "000000111");      //ht.Add('R', "100000110");      //ht.Add('S', "001000110");      //ht.Add('T', "000010110");      //ht.Add('U', "110000001");      //ht.Add('V', "011000001");      //ht.Add('W', "111000000");      //ht.Add('X', "010010001");      //ht.Add('Y', "110010000");      //ht.Add('Z', "011010000");      //ht.Add('-', "010000101");      //ht.Add('.', "110000100");      //ht.Add(' ', "011000100");      //ht.Add('*', "010010100");      //ht.Add('$', "010101000");      //ht.Add('/', "010100010");      //ht.Add('+', "010001010");      //ht.Add('%', "000101010");      #endregion      s = "*" + s.ToUpper() + "*";      string result_bin = "";//二進制串      try      {        foreach (char ch in s)        {          result_bin += ht[ch].ToString();          result_bin += "0";//間隔，與一個單位的線條寬度相等        }      }      catch { return "存在不允許的字符！"; }      string result_html = ""; //HTML代碼      string color = "";    //顏色      foreach (char c in result_bin)      {        color = c == '0' ? "#FFFFFF" : "#000000";        result_html += "<div style=/"width:" + width + "px;height:" + height + "px;float:left;background:" + color + ";/"></div>";      }      result_html += "<div style=/"clear:both/"></div>";      int len = ht['*'].ToString().Length;      foreach (char c in s)      {        result_html += "<div style=/"width:" + (width * (len + 1)) + "px;float:left;color:#000000;text-align:center;/">" + c + "</div>";      }      result_html += "<div style=/"clear:both/"></div>";      return "<div style=/"background:#FFFFFF;padding:5px;font-size:" + (width * 10) + "px;font-family:'楷體';/">" + result_html + "</div>";    }    public static string getEAN13(string s, int width, int height)    {      int checkcode_input = -1;//輸入的校驗碼      if (!Regex.IsMatch(s, @"^/d{12}$"))      {        if (!Regex.IsMatch(s, @"^/d{13}$"))        {          return "存在不允許的字符！";        }        else        {          checkcode_input = int.Parse(s[12].ToString());          s = s.Substring(0, 12);        }      }      int sum_even = 0;//偶數位之和      int sum_odd = 0; //奇數位之和      for (int i = 0; i < 12; i++)      {        if (i % 2 == 0)        {          sum_odd += int.Parse(s[i].ToString());        }        else        {          sum_even += int.Parse(s[i].ToString());        }      }      int checkcode = (10 - (sum_even * 3 + sum_odd) % 10) % 10;//校驗碼      if (checkcode_input > 0 && checkcode_input != checkcode)      {        return "輸入的校驗碼錯誤！";      }      s += checkcode;//變成13位      // 000000000101左側42個01010右側35個校驗7個101000000000      // 6    101左側6位 01010右側5位校驗1位101000000000      string result_bin = "";//二進制串      result_bin += "000000000101";      string type = ean13type(s[0]);      for (int i = 1; i < 7; i++)      {        result_bin += ean13(s[i], type[i - 1]);      }      result_bin += "01010";      for (int i = 7; i < 13; i++)      {        result_bin += ean13(s[i], 'C');      }      result_bin += "101000000000";      string result_html = ""; //HTML代碼      string color = "";    //顏色      int height_bottom = width * 5;      foreach (char c in result_bin)      {        color = c == '0' ? "#FFFFFF" : "#000000";        result_html += "<div style=/"width:" + width + "px;height:" + height + "px;float:left;background:" + color + ";/"></div>";      }      result_html += "<div style=/"clear:both/"></div>";      result_html += "<div style=/"float:left;color:#000000;width:" + (width * 9) + "px;text-align:center;/">" + s[0] + "</div>";      result_html += "<div style=/"float:left;width:" + width + "px;height:" + height_bottom + "px;background:#000000;/"></div>";      result_html += "<div style=/"float:left;width:" + width + "px;height:" + height_bottom + "px;background:#FFFFFF;/"></div>";      result_html += "<div style=/"float:left;width:" + width + "px;height:" + height_bottom + "px;background:#000000;/"></div>";      for (int i = 1; i < 7; i++)      {        result_html += "<div style=/"float:left;width:" + (width * 7) + "px;color:#000000;text-align:center;/">" + s[i] + "</div>";      }      result_html += "<div style=/"float:left;width:" + width + "px;height:" + height_bottom + "px;background:#FFFFFF;/"></div>";      result_html += "<div style=/"float:left;width:" + width + "px;height:" + height_bottom + "px;background:#000000;/"></div>";      result_html += "<div style=/"float:left;width:" + width + "px;height:" + height_bottom + "px;background:#FFFFFF;/"></div>";      result_html += "<div style=/"float:left;width:" + width + "px;height:" + height_bottom + "px;background:#000000;/"></div>";      result_html += "<div style=/"float:left;width:" + width + "px;height:" + height_bottom + "px;background:#FFFFFF;/"></div>";      for (int i = 7; i < 13; i++)      {        result_html += "<div style=/"float:left;width:" + (width * 7) + "px;color:#000000;text-align:center;/">" + s[i] + "</div>";      }      result_html += "<div style=/"float:left;width:" + width + "px;height:" + height_bottom + "px;background:#000000;/"></div>";      result_html += "<div style=/"float:left;width:" + width + "px;height:" + height_bottom + "px;background:#FFFFFF;/"></div>";      result_html += "<div style=/"float:left;width:" + width + "px;height:" + height_bottom + "px;background:#000000;/"></div>";      result_html += "<div style=/"float:left;color:#000000;width:" + (width * 9) + "px;/"></div>";      result_html += "<div style=/"clear:both/"></div>";      return "<div style=/"background:#FFFFFF;padding:0px;font-size:" + (width * 10) + "px;font-family:'楷體';/">" + result_html + "</div>";    }    private static string ean13(char c, char type)    {      switch (type)      {        case 'A':          {            switch (c)            {              case '0': return "0001101";              case '1': return "0011001";              case '2': return "0010011";              case '3': return "0111101";//011101              case '4': return "0100011";              case '5': return "0110001";              case '6': return "0101111";              case '7': return "0111011";              case '8': return "0110111";              case '9': return "0001011";              default: return "Error!";            }          }        case 'B':          {            switch (c)            {              case '0': return "0100111";              case '1': return "0110011";              case '2': return "0011011";              case '3': return "0100001";              case '4': return "0011101";              case '5': return "0111001";              case '6': return "0000101";//000101              case '7': return "0010001";              case '8': return "0001001";              case '9': return "0010111";              default: return "Error!";            }          }        case 'C':          {            switch (c)            {              case '0': return "1110010";              case '1': return "1100110";              case '2': return "1101100";              case '3': return "1000010";              case '4': return "1011100";              case '5': return "1001110";              case '6': return "1010000";              case '7': return "1000100";              case '8': return "1001000";              case '9': return "1110100";              default: return "Error!";            }          }        default: return "Error!";      }    }    private static string ean13type(char c)    {      switch (c)      {        case '0': return "AAAAAA";        case '1': return "AABABB";        case '2': return "AABBAB";        case '3': return "AABBBA";        case '4': return "ABAABB";        case '5': return "ABBAAB";        case '6': return "ABBBAA";//中國        case '7': return "ABABAB";        case '8': return "ABABBA";        case '9': return "ABBABA";        default: return "Error!";      }    }  }}
希望本文所述對大家的C#程序設計有所幫助。
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