CRC（ccitt-16）校驗

#include <stdio.h> #include <stdlib.h> #include <string.h> #include "crc.h" unsigned short crc16_ccitt_table[256] = { 0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf, 0x8c48, 0x9dc1, 0

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