char/byte数组转16进制字符串

// ConsoleApplication1.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"

int _tmain(int argc, _TCHAR* argv[])
{

unsigned char char0xFF[16] = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};

unsigned char a[7] = {100,0,0,110,168,179};

unsigned char cc[30] = {'\0'};
int ccLen = 0;

for(int i=0;i<6;i++){
printf("十进制:%d",a[i]);
printf("十六进制:%x\n",a[i]);
}

for(int i=0;i<6;i++){
char xixi = a[i];

int star =    xixi >> 4  ;
star = star & 0x0F;
int end = xixi &  0x0F;

printf("%d-",star);
printf("%d\n",end);

printf("%c",char0xFF[star]);
printf("%c\n",char0xFF[end]);

unsigned char aaa = char0xFF[star];
unsigned char bbb = char0xFF[end];

cc[ccLen] = char0xFF[star]; ccLen++;
cc[ccLen] = char0xFF[end]; ccLen++;
if(i<6-1){
cc[ccLen] = ':'; ccLen++;
}

}

for(int i=0;i<30;i++){
printf("%c",cc[i]);
}

printf("\nhello\n");

getchar();
return 0;
}