public function testDriver()
{
$dirver = new Driver();
$dirver->drive(new Bmw());
}
}
function drive()
{
echo $this->name . "正在开车" . "<br>";
}
}
// 医生子类
class Doctor extends Person
{
private $hospital, $department;
function __construct($name = "", $age = "", $sex = "", $height = "", $hospital = "", $department = "")
{
parent::__construct($name, $age, $sex, $height);
$this->hospital = $hospital;
$this->department = $department;
}
function treat()
{
echo $this->name . "正在为病人治疗" . "<br>";
}
}
// 人 类实例化
$person1 = new Person("张三", 20, "男", 180);
$person1->talk();
$person1->walk();
// 司机类实例化
$driver1 = new Driver("李四", 30, "男", 175, 8);
$driver1->drive();
// 医生类实例化
$doctor1 = new Doctor("王丽", 25, "女", 167, "中国医科大学", "儿科");
$doctor1->treat();