如下所示：
BOOL IsHexFormat(LPCTSTR pStr)
{
if (pStr[0] == L'0' && ((pStr[1] == L'x') || (pStr[1] == L'X'))){
return TRUE;
}
return FALSE;
}
BOOL IsInputValid(LPCTSTR pStr)
{
int i;
BOOL res;
BOOL IsHex;
i = 0;
res = TRUE;
IsHex = IsHexFormat(pStr);
while (pStr[i] != L'\0'){
