字符串转换成16进制

字符串转换成16进制

void tohex(char *hh, BYTE *dd,int len){char h1,h2;BYTE s1,s2;for (int i=0;i<len;i++){h1 = hh[2*i];h2 = hh[2*i+1];s1 = toupper(h1) - 0x30;if (s1 > 9) s1 -= 7;s2 = toupper(h2) - 0x30;if (s2 > 9) s2 -= 7;dd[i] = s1*16 + s2;}}

测试程序：

int Test_strToHex(){int i = 0;int len = 0;char compstr[256] = "0A84000008";unsigned char hexData[256];len = strlen(compstr) / 2;tohex(compstr, hexData, len);for (i=0; i<len; i++){printf("%02x ", hexData[i]);}printf("\n");return 0;}