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 // 16Hex.cpp : 定義控制臺應用程序的入口點。
//
#include "stdafx.h"
#include <stdlib.h>
#include <string.h>
// 16進制輸出函數(shù) 把一個unsigned char *數(shù)組,按照16進制輸出
// 調(diào)用前，請先初始化 dst, 并確保dst有足夠的空間存放
// dst的空間是 char數(shù)組的3倍+1
void ToHex( unsigned char * src, int length, char * dst )
   {
 char temp[3];
 
for (int i = 0; i < length; ++i)
{
char result[3] = {'0', '0', ' '};
itoa(src[i], temp, 16);
if (strlen(temp) == 1)
memcpy(result + 1, temp, 1);
else
memcpy(result, temp, 2);
memcpy(dst + 3 * i, result, 3);
 }
 }
int _tmain(int argc, _TCHAR* argv[])
{
unsigned char ch1[2] = {0x01, 0xff};
char _dstbuf[1024] = "\0";
ToHex(ch1, 2, _dstbuf);
return 0;
}
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