PHP面向对象构造和析构函数

<?phpclass Ren{public $name;public $sex;//性别是人一出生就知道的，可以用构造函数来定义/*public function Ren(){} *///构造函数不常用public function __construct(){}//构造函数常用} ????>

<?phpclass Ren{public $name;public $sex;public function __construct($sex){$this->sex = $sex;echo "测试一下";}}$r = new Ren("男");$r->name = "张三";var_dump($r); ????>

<?phpclass Ren{public $name;public $sex;public function __construct($sex){$this->sex = $sex;}public function __destruct(){echo "销毁";}//执行完name后没有可执行的 会自动销毁内容}$r = new Ren("男");$r->name = "张三"; ????>

<?php//设置当前页面编码格式为gbkheader("Content-type:text/html; charset=gbk");class hero{public $name; //名字public $blood; //血量public $attack; //攻击力//放技能的方法public function jineng(){$arr = array(array(50,"隔山打牛"),array(60,"降龙十八掌"),array(45,"九阳神功"),array(20,"葵花宝典"),array(70,"六脉神剑"));$gs = count($arr);$sy = rand(0,$gs-1);echo "{$this->name}使用了{$arr[$sy][1]}\n";return $arr[$sy][0];}//构造函数public function __construct($name,$blood,$gjl){$this->name = $name;$this->blood = $blood;$this->attack = $gjl;}}//造第一个人$h1 = new hero("狗蛋",800,15);//造第二个人$h2 = new hero("大壮",700,16);while(true){//随机一下，是普攻还是放技能$sj1 = rand(0,1);$gj = 0; ?//本次h1能打掉多少血echo "{$h1->name}打{$h2->name}\n";if($sj1){$gj = $h1->jineng();}else{$gj = $h1->attack+rand(0,20);}$h2->blood = $h2->blood-$gj;echo "{$h1->name}打掉了{$h2->name}的{$gj}血\n";echo "******************************\n";$sj2 = rand(0,1);$gj2 = 0; ?//本次h2能打掉多少血echo "{$h2->name}打{$h1->name}\n";if($sj2){$gj2 = $h2->jineng();}else{$gj2 = $h2->attack+rand(0,20);}$h1->blood = $h1->blood-$gj2;echo "{$h2->name}打掉了{$h1->name}的{$gj2}血\n";echo "******************************\n";if($h2->blood<=0){echo "{$h1->name}赢了";break;}else if($h1->blood<=0){echo "{$h2->name}赢了";break;}echo "----\n\n\n";//休眠sleep(3);}