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php 类的权限
牛粪也香的博客
Original
1113 people have browsed it

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结果:

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代码:

<?phpnamespace admin;

class People{

//类中成员,包括: 属性和方法;

 private $age;//属性,私有的属性

protected $phone;//属性,保护的属性

public function getage()

{

 return $this->age;

 }

 public function __construct($age,$phone)

 {  $this->age=$age;//把第一个参数 赋值给age属性 

 $this->phone=$phone;//把第一个参数 赋值给phone属性

  }

 public function age() { return $this->age; }  

 public function phone() {

 return $this->phone;

}

}

//权限管理 

 $obj = new People('18','13888888'); 

 echo $obj->age(); 

 // echo "<hr>";  

 echo $obj->phone();   

// $obj->age;   // $obj->phone;echo "<hr>"; 

  class per extends People   {   

 public function display()   

 {   

 return $this->phone;  

  }  

 }   

$obj =new per(28,13666666);  

 echo $obj->display();

//总结://private 的属性或方法,只有在本类中,可以进行相关的调用//protected 的属性或方法,除了在本类中可以调用之外, 在子类中也可以调用//public 的属性或方法,都可以调用

Correction status:qualified

Teacher's comments:作业很认真, 代码写得也规范
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