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CRC-16校验C#代码
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using?System;??using?System.Collections.Generic;??using?System.Text;??using?System.Runtime.Serialization.Formatters.Binary;??using?System.IO;????namespace?smsForCsharp.CRC??{????????????????????????????public?class?CRC??????????{????????????????public?static?String?getCrc16Code(String?crcString)??????????????{??????????????????????????????????????byte[]?creBytes?=?HexString2Bytes(crcString);??????????????????????????????????????CRC16Util?crc16?=?new?CRC16Util();??????????????????crc16.reset();??????????????????crc16.update(creBytes);??????????????????int?crc?=?crc16.getCrcValue();????????????????????????????????????String?crcCode?=?Convert.ToString(crc,?16).ToUpper();????????????????????????????????????if?(crcCode.Length?<?4)??????????????????{????????????????????????????????????????????crcCode?=?crcCode.PadLeft(4,?'0');??????????????????}??????????????????return?crcCode;??????????????}?????????????????????????????public?static?String?RealHexToStr(String?str)??????????????{??????????????????String?hText?=?"0123456789ABCDEF";??????????????????StringBuilder?bin?=?new?StringBuilder();??????????????????for?(int?i?=?0;?i?<?str.Length;?i++)??????????????????{??????????????????????bin.Append(hText[str[i]?/?16]).Append(hText[str[i]?%?16]).Append('?');??????????????????}??????????????????return?bin.ToString();??????????????}?????????????????????????????????public?static?byte[]?HexString2Bytes(String?hexstr)??????????????{??????????????????byte[]?b?=?new?byte[hexstr.Length?/?2];??????????????????int?j?=?0;??????????????????for?(int?i?=?0;?i?<?b.Length;?i++)??????????????????{??????????????????????char?c0?=?hexstr[j++];??????????????????????char?c1?=?hexstr[j++];??????????????????????b[i]?=?(byte)((parse(c0)?<<?4)?|?parse(c1));??????????????????}??????????????????return?b;??????????????}?????????????????????????????????????public?static?int?parse(char?c)??????????????{??????????????????if?(c?>=?'a')??????????????????????return?(c?-?'a'?+?10)?&?0x0f;??????????????????if?(c?>=?'A')??????????????????????return?(c?-?'A'?+?10)?&?0x0f;??????????????????return?(c?-?'0')?&?0x0f;??????????????}?????????????????????????????????public?static?string?ByteArrayToHexString(byte[]?data)??????????????{??????????????????StringBuilder?sb?=?new?StringBuilder(data.Length?*?3);??????????????????foreach?(byte?b?in?data)??????????????????????sb.Append(Convert.ToString(b,?16).PadLeft(2,?'0').PadRight(3,?'?'));??????????????????return?sb.ToString().ToUpper();??????????????}????????????}??????????????????????????public?class?CRC16Util??????????{??????????????????????????????private?int?value?=?0xffff;????????????????private?static?int[]?CRC16_TABLE?=?{??????????0x0000,?0x1189,?0x2312,?0x329b,?0x4624,?0x57ad,?0x6536,?0x74bf,??????????0x8c48,?0x9dc1,?0xaf5a,?0xbed3,?0xca6c,?0xdbe5,?0xe97e,?0xf8f7,??????????0x1081,?0x0108,?0x3393,?0x221a,?0x56a5,?0x472c,?0x75b7,?0x643e,??????????0x9cc9,?0x8d40,?0xbfdb,?0xae52,?0xdaed,?0xcb64,?0xf9ff,?0xe876,??????????0x2102,?0x308b,?0x0210,?0x1399,?0x6726,?0x76af,?0x4434,?0x55bd,??????????0xad4a,?0xbcc3,?0x8e58,?0x9fd1,?0xeb6e,?0xfae7,?0xc87c,?0xd9f5,??????????0x3183,?0x200a,?0x1291,?0x0318,?0x77a7,?0x662e,?0x54b5,?0x453c,??????????0xbdcb,?0xac42,?0x9ed9,?0x8f50,?0xfbef,?0xea66,?0xd8fd,?0xc974,??????????0x4204,?0x538d,?0x6116,?0x709f,?0x0420,?0x15a9,?0x2732,?0x36bb,??????????0xce4c,?0xdfc5,?0xed5e,?0xfcd7,?0x8868,?0x99e1,?0xab7a,?0xbaf3,??????????0x5285,?0x430c,?0x7197,?0x601e,?0x14a1,?0x0528,?0x37b3,?0x263a,??????????0xdecd,?0xcf44,?0xfddf,?0xec56,?0x98e9,?0x8960,?0xbbfb,?0xaa72,??????????0x6306,?0x728f,?0x4014,?0x519d,?0x2522,?0x34ab,?0x0630,?0x17b9,??????????0xef4e,?0xfec7,?0xcc5c,?0xddd5,?0xa96a,?0xb8e3,?0x8a78,?0x9bf1,??????????0x7387,?0x620e,?0x5095,?0x411c,?0x35a3,?0x242a,?0x16b1,?0x0738,??????????0xffcf,?0xee46,?0xdcdd,?0xcd54,?0xb9eb,?0xa862,?0x9af9,?0x8b70,??????????0x8408,?0x9581,?0xa71a,?0xb693,?0xc22c,?0xd3a5,?0xe13e,?0xf0b7,??????????0x0840,?0x19c9,?0x2b52,?0x3adb,?0x4e64,?0x5fed,?0x6d76,?0x7cff,??????????0x9489,?0x8500,?0xb79b,?0xa612,?0xd2ad,?0xc324,?0xf1bf,?0xe036,??????????0x18c1,?0x0948,?0x3bd3,?0x2a5a,?0x5ee5,?0x4f6c,?0x7df7,?0x6c7e,??????????0xa50a,?0xb483,?0x8618,?0x9791,?0xe32e,?0xf2a7,?0xc03c,?0xd1b5,??????????0x2942,?0x38cb,?0x0a50,?0x1bd9,?0x6f66,?0x7eef,?0x4c74,?0x5dfd,??????????0xb58b,?0xa402,?0x9699,?0x8710,?0xf3af,?0xe226,?0xd0bd,?0xc134,??????????0x39c3,?0x284a,?0x1ad1,?0x0b58,?0x7fe7,?0x6e6e,?0x5cf5,?0x4d7c,??????????0xc60c,?0xd785,?0xe51e,?0xf497,?0x8028,?0x91a1,?0xa33a,?0xb2b3,??????????0x4a44,?0x5bcd,?0x6956,?0x78df,?0x0c60,?0x1de9,?0x2f72,?0x3efb,??????????0xd68d,?0xc704,?0xf59f,?0xe416,?0x90a9,?0x8120,?0xb3bb,?0xa232,??????????0x5ac5,?0x4b4c,?0x79d7,?0x685e,?0x1ce1,?0x0d68,?0x3ff3,?0x2e7a,??????????0xe70e,?0xf687,?0xc41c,?0xd595,?0xa12a,?0xb0a3,?0x8238,?0x93b1,??????????0x6b46,?0x7acf,?0x4854,?0x59dd,?0x2d62,?0x3ceb,?0x0e70,?0x1ff9,??????????0xf78f,?0xe606,?0xd49d,?0xc514,?0xb1ab,?0xa022,?0x92b9,?0x8330,??????????0x7bc7,?0x6a4e,?0x58d5,?0x495c,?0x3de3,?0x2c6a,?0x1ef1,?0x0f78??????};?????????????????????????????????public?void?update(byte[]?data)??????????????{????????????????????????????????????for?(int?i?=?0;?i?<?data.Length;?i++)??????????????????{??????????????????????????????????????????????????????????????????????????????????????????????????????????????value?=?(value?>>?8)?^?CRC16_TABLE[(value?^?data[i])?&?0xff];??????????????????}??????????????????????????????????????????????????}??????????????????????????????????public?void?update(byte?aByte)??????????????{??????????????????value?=?(value?>>?8)?^?CRC16_TABLE[(value?^?aByte)?&?0xff];??????????????}????????????????????????????????public?void?reset()??????????????{??????????????????value?=?0xffff;??????????????}??????????????????????????????????public?int?getCrcValue()??????????????{??????????????????return?~value?&?0xffff;??????????????}??????????????????????????????????????????????????????????????????????????????????????public?static?byte[]?makeCrc16(byte[]?ccc)??????????????{????????????????????CRC16Util?crc16?=?new?CRC16Util();??????????????????crc16.reset();??????????????????crc16.update(ccc);????????????????????????????????????byte[]?test?=?intToByte(crc16.getCrcValue());????????????????????????????????????return?test;????????????????}????????????????private?static?int[]?copy(byte[]?aa)??????????????{??????????????????int[]?cc?=?new?int[aa.Length];??????????????????for?(int?i?=?0;?i?<?aa.Length;?i++)??????????????????{??????????????????????cc[i]?=?aa[i];??????????????????}??????????????????return?cc;??????????????}????????????????public?static?byte[]?intToByte(int?i)??????????????{??????????????????byte[]?abyte0?=?new?byte[4];??????????????????abyte0[0]?=?(byte)(0xff?&?i);??????????????????abyte0[1]?=?(byte)((0xff00?&?i)?>>?8);??????????????????abyte0[2]?=?(byte)((0xff0000?&?i)?>>?16);??????????????????abyte0[3]?=?(byte)((0xff000000?&?i)?>>?24);??????????????????return?abyte0;??????????????}????????????????private?static?void?log(Object?obj)??????????????{????????????????????????????????}????????????????private?static?void?printBytes(byte[]?bytes)??????????????{??????????????????for?(int?i?=?0;?i?<?bytes.Length;?i++)??????????????????{????????????????????????????????????????}??????????????}????????????????public?static?String?RealHexToStr(String?str)??????????????{??????????????????String?hText?=?"0123456789ABCDEF";??????????????????StringBuilder?bin?=?new?StringBuilder();??????????????????for?(int?i?=?0;?i?<?str.Length;?i++)??????????????????{??????????????????????bin.Append(hText[str[i]?/?16]).Append(hText[str[i]?%?16]).Append('?');??????????????????}??????????????????return?bin.ToString();??????????????}????????}??}??
轉(zhuǎn)載于:https://www.cnblogs.com/armyfai/p/3566582.html
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