将 unsiged char 转换成对应的十六进制字符用以显示出来如 unsiged char a[]={0x00,0x01,0x30,0x38}转化为“00013038”

 int CEnCryptionAndDeCryptionDlg::Byte2Hex(const unsigned  char* input,unsigned long inLen,
                                                     unsigned char* outPut,unsigned long* outLen)
 {
     static const char* num="0123456789ABCDEF";
     unsigned long i=;
     unsigned char *p=outPut;

     if (*outLen<inLen*)
     {
         *outLen=inLen*;
         return -;
     }

     for (int i=;i<inLen;i++)
     {
         *p++=num[input[i]>>];
         *p++=num[input[i]&0x0f];
     }
     *outLen=p-outPut;
     return ;

 }

CString outPut=outPut;

以上代码参考自http://bbs.csdn.net/topics/370151117