C#条形码生成（三）----简单的三种Code128实现

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编写这三类条形码的时候，网上baidu来baidu去，就是没找到关于Code128A，Code128B，Code128C的明确定义，然后就按照网上通用的说法只取相应的字符集来编写了这部分代码

CodeA

public class Code128A : absCode128    {        /// <summary>        /// Code128A条形码,只支持128字符集A（数字、大写字母、控制字符）        /// </summary>        /// <param name="encodedData"></param>        public Code128A(string rawData)            : base(rawData)        {        }        protected override bool RawDataCheck()        {            //128字符集A对应的ASCII码范围为0~95            foreach (char c in this._rawData)            {                byte tempC = (byte)c;                if (tempC <= 95)                {                    continue;                }                else                {                    return false;                }            }            return true;        }        protected override string GetEncodedData()        {            StringBuilder tempBuilder = new StringBuilder();            tempBuilder.Append(Code128.BSList[Code128.StartA]);//加上起始符StartA            byte sIndex;            int checkNum = Code128.StartA;//校验字符            for (int i = 0; i < this._rawData.Length; i++)            {                sIndex = Code128.GetSIndexFromA(this._rawData[i]);                tempBuilder.Append(Code128.BSList[sIndex]);                checkNum += (i + 1) * sIndex;            }            checkNum %= 103;            tempBuilder.Append(Code128.BSList[checkNum]);//加上校验符            tempBuilder.Append(Code128.BSList[Code128.Stop]);//加上结束符            return tempBuilder.ToString();        }    }

Code128B

/// <summary>    /// Code128B条形码,只支持128字符集B（数字、大小字母、字符）    /// </summary>    public class Code128B : absCode128    {        public Code128B(string rawData)            : base(rawData)        {        }        protected override bool RawDataCheck()        {            //128字符集B对应的ASCII码范围为32~127            foreach (char c in this._rawData)            {                byte tempC = (byte)c;                if (tempC >= 32 && tempC <= 127)                {                    continue;                }                else                {                    return false;                }            }            return true;        }        protected override string GetEncodedData()        {            StringBuilder tempBuilder = new StringBuilder();            tempBuilder.Append(Code128.BSList[Code128.StartB]);//加上起始符StartB            byte sIndex;            int checkNum = Code128.StartB;//校验字符            for (int i = 0; i < this._rawData.Length; i++)            {                sIndex = Code128.GetSIndexFromB(this._rawData[i]);//字符集B中ASCII码 减去32后就等于符号字符值                tempBuilder.Append(Code128.BSList[sIndex]);                checkNum += (i + 1) * sIndex;            }            checkNum %= 103;            tempBuilder.Append(Code128.BSList[checkNum]);//加上校验符            tempBuilder.Append(Code128.BSList[Code128.Stop]);//加上结束符            return tempBuilder.ToString();        }    }

Code128C

/// <summary>    /// Code128C条形码,只支持128字符集C（双位数字）    /// </summary>    public class Code128C : absCode128    {        public Code128C(string rawData)            : base(rawData)        {        }        protected override bool RawDataCheck()        {            return Regex.IsMatch(this._rawData, @"^\d{2,96}$") && this._rawData.Length % 2 == 0;//Code128C 2个数字代表一个数据字符，所以最大可以96个数字        }        protected override string GetEncodedData()        {            StringBuilder tempBuilder = new StringBuilder();            tempBuilder.Append(Code128.BSList[Code128.StartC]);//加上起始符StartC            byte sIndex;            int checkNum = Code128.StartC;//校验字符,StartC为105            for (int i = 0; i < this._rawData.Length / 2; i++)            {                sIndex = byte.Parse(this._rawData.Substring(i * 2, 2));                tempBuilder.Append(Code128.BSList[sIndex]);                checkNum += (i + 1) * sIndex;            }            checkNum %= 103;            tempBuilder.Append(Code128.BSList[checkNum]);//加上校验符            tempBuilder.Append(Code128.BSList[Code128.Stop]);//加上结束符            return tempBuilder.ToString();        }    }