php小白有关问题
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2022-06-16 14:15:56
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php小白问题
这段代码我怎么看不懂啊
哪里来的$eFruits->APPLE
$eFruits->ORANGE
$eFruits->PEACH
不要见笑啊
------解决方案--------------------
1、你先把程序修改正确了:方法名前有下划线的方法名一律改成两个下划线的
如 _construct 改为 __construct
2、修改 __get 方法成这样
public function __get($name=null)
{
echo "读取属性 $name";
return $this->self[$name];
}
3、运行修改后的代码,你就可以知道是怎么回事了
------解决方案--------------------
- PHP code
add($args[$i]); } public function _get($name=null) { return $this->self[$name]; } public function add($name=null,$enum=null) { if(isset($enum)) $this->self[$name]=$enum; else $this->sef[$name]=end($this->self)+1; }}class DefinedEnum extends Enum{ public function _construct($itms) { foreach($itms as $name=>$enum) $this->add($name,$enum); }}class FlagsEnum extends Enum{ public function _construct() { $args=func_get_args(); for($i=0,$n=count($args),$f=0x1;$iadd($args[i],$f); }}$eFruits=new Enum("APPLE","ORANGE","PEACH");echo $eFruits->APPLE.",";echo $eFruits->ORANGE.",";echo $eFruits->PEACH."\n";$eBeers=new DefinedEnum("GUINESS"=>25,"MIRROR_POND"=>49);echo $eBeers->GUINESS.",";echo $eBeers->MIRROR_POND."\n";$eFlags=new FlagsEnum("HAS_ADMIN","HAS_SUPER","HAS_POWER","HAS_GUEST");echo $eFlags->HAS_ADMIN.",";echo $eFlags->HAS_SUPER.",";echo $eFlags->HAS_POWER.",";echo $eFlags->HAS_GUEST."\n";?>
这段代码我怎么看不懂啊
哪里来的$eFruits->APPLE
$eFruits->ORANGE
$eFruits->PEACH
不要见笑啊
------解决方案--------------------
1、你先把程序修改正确了:方法名前有下划线的方法名一律改成两个下划线的
如 _construct 改为 __construct
2、修改 __get 方法成这样
public function __get($name=null)
{
echo "读取属性 $name";
return $this->self[$name];
}
3、运行修改后的代码,你就可以知道是怎么回事了
------解决方案--------------------
- PHP code
class Enum{ protected $self=array(); public function __construct() { $args=func_get_args(); for($i=0,$n=count($args);$iadd($args[$i]); } public function __get($name=null) { return $this->self[$name]; } public function add($name=null,$enum=null) { if(isset($enum)){ $this->self[$name]=$enum; }else{ $this->self[$name]=end($this->self)+1; } }}class DefinedEnum extends Enum{ public function __construct($itms) { foreach($itms as $name=>$enum) $this->add($name,$enum); }}class FlagsEnum extends Enum{ public function __construct() { $args=func_get_args(); for($i=0,$n=count($args),$f=0x1;$iadd($args[$i],$f); } }} $eFruits=new Enum("APPLE","ORANGE","PEACH");echo $eFruits->APPLE.",";echo $eFruits->ORANGE.",";echo $eFruits->PEACH."\n";$eBeers=new DefinedEnum(array("GUINESS"=>25,"MIRROR_POND"=>49));echo $eBeers->GUINESS.",";echo $eBeers->MIRROR_POND."\n"; $eFlags=new FlagsEnum("HAS_ADMIN","HAS_SUPER","HAS_POWER","HAS_GUEST");echo ($eFlags->HAS_ADMIN).",";echo ($eFlags->HAS_SUPER).",";echo $eFlags->HAS_POWER.",";echo $eFlags->HAS_GUEST."\n";
------解决方案--------------------
两个下划线就都对了。相关文章
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