/*********************************************************
参数： pHexArray - 16进制数组， iArrayLength - 数组长度，
pString - 目的字符串， iStringLength - 目的字符
串长度

运行平台： VS2017
*********************************************************/

include <string.h>

include <stdio.h>

void HexArrayToString(
unsigned char *pHexArray,
unsigned char iArrayLength,
char *pString,
unsigned int iStringLength
)
{
unsigned char i = 0;
char strMid[3] = {0};
for(i=0; i<iArrayLength; i++)
{
sprintf_s(strMid, "%hhX", pHexArray[i]);
strncat_s(pString, iStringLength, strMid, sizeof strMid);
}
}

int main(void)
{
unsigned char iArray[5] = {0x12, 0x34, 0x56, 0x78, 0xAB};
char strDes[1024] = {0};

HexArrayToString(iArray, (unsigned char)(sizeof iArray), strDes, (unsigned int)(sizeof strDes));

printf("\n\n\t0x12,0x34,0x56,0x78,0xAB -> %s\n", strDes);

return 0;

}