public $age; static $money = 100000; public function __construct() { parent::__construct(); // 调用父类构造方法 echo '这里是子类', PHP_EOL; } public function say() { parent::say(); // 调用父类中的方法 echo $this->name, "\tis\t", $this->gender, ",and is\t", $this->age, PHP_EOL; } public function cry() { echo parent::$money, PHP_EOL; echo '%>_<%', PHP_EOL; echo self::$money, PHP_EOL; // 调用自身构造方法 echo '(*^_^*)'; } } $poor = new family(); echo '<br>'; $poor->name = 'Lee'; $poor->gender = 'female'; $poor->age = 25; $poor->say(); echo '<br>'; $poor->cry();