Correction status:Uncorrected
Teacher's comments:
<meta charset="UTF-8"> <?php //父类 class Person { //保护属性 protected $name; 构造方法 public function __construct($name) { $this->name = $name; } //游戏的方法 public function play($game) { return $this->name .'在玩'.$game.'<br>'; } } //trait:简单来说,可以将一些方法存储在trait类里边,需要的时候调用 trait Course { public $friend = '小红'; //方法 public function sleep($time) { return $this->name.$time.'睡觉'.'<br>'.$this->friend.$time.'睡觉'.'<br>'; } //抽象类 abstract public function hobby ($name); //方法 public function study($course = 'java') { return $this->friend.'在学习'.$course; } } //子类 class Member extends Person { //使用trait Course类 use Course; //hobby方法 public function hobby($name) { return $name; } public function study($course = 'python') { return $this->friend.'在学习'.$course; } } //实例化子类 $member = new Member('父类'); echo $member->play('游戏'); echo $member->sleep('9点'); echo $member->study();
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