会python真的可以为所欲为0(回)
355天前
这里还有人吗1(回)
540天前这里还有人吗0(回)
540天前
每天面对着电脑屏幕，敲打键盘。我所面对的并不只是代码，而是一种生活方式。0(回)
765天前到处都是羊，不想上班0(回)
845天前
鸽子
0(回)
849天前class a { |
public $attr2 = 'a'; |
private $final_attr = '1'; |
function __construct() { |
$vars = get_class_vars(get_class($this)); |
foreach($vars as $k => $val) { |
if(substr($k,0,strlen('final_')) == 'final_') continue; |
$v = 'final_'.$k; |
if(isset($this ->$v )) { |
echo 'class : ' . get_class($this) . " Can't declare parent's attribute!"; |
exit(); |
} |
} |
} |
function __set($attr,$val) { |
$v = 'final_'.$attr; |
if(isset($this -> $v)) { |
$this -> $v = $val; |
} |
} |
function __get($k) { |
$v = 'final_'.$k; |
if(isset($this -> $v)) { |
return $this -> $v; |
} |
} |
} |
class b extends a { |
public $attr = 'b'; |
function __construct() { |
parent::__construct(); |
} |
} |
$a = new b(); |
