Question

MFC 如何把字符串比如“78E32F79”转换成十六进制的数据78E32F79

Answer 1

int String2Hex(CString str, CByteArray &senddata)
{
int hexdata,lowhexdata;
int hexdatalen=0;
int len=str.GetLength();

senddata.SetSize(len/2);

for(int i=0;i<len;)
{
char lstr,hstr=str[i];
if(hstr==' ')
{
i++;
continue;
}
i++;
if(i>=len)
break;
lstr=str[i];
hexdata=ConvertHexChar(hstr);
lowhexdata=ConvertHexChar(lstr);
if((hexdata==16)||(lowhexdata==16))
break;
else
hexdata=hexdata*16+lowhexdata;
i++;
senddata[hexdatalen]=(char)hexdata;
hexdatalen++;
}

senddata.SetSize(hexdatalen);
return hexdatalen;
}

CString strTemp = "78E32F79";
CByteArray hexdata;
int len=String2Hex(strTemp,hexdata);

应该能解决你的问题