Core_PinYin::_g

static protected function _g($num)
{
    if ( $num > 0 && $num < 160 )
    {
        return chr($num);
    }
    elseif ( $num < -20319 || $num > -10247 )
    {
        return "";
    }
    else
    {
        for( $i = count(self::$d) - 1; $i >= 0; $i -- )
        {
            if ( self::$d[$i][1] <= $num ) break;
        }
        return self::$d[$i][0];
    }
}