C语言 字节数组转为字符串

话不多说贴代码：

int main(void)
{
unsigned char src[6] = { 0x12, 0x00, 0x56, 0x78, 0x90, 0xab };
char s[13] = { 0 };
int i;
char c1, c2;


for (i = 0; i < 6; i++)
{
c1 = src[i] & 0xFu;
c2 = (src[i] >> 4) & 0xFu;
sprintf(s + i * 2, "%x%x", c2, c1);
}
printf("!! %s\n",s);
printf("len %d\n",strlen(s));
return 0;
}
//1200567890ab