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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