public interface Command {
  public void execute();
}

Public void test(Command para){
  Para.execute();
}

<" 执行攻击命令（action）<br />";
    }
    public function action1()
    {
      echo $this->_name." 执行防御命令（action1）<br/>";
    }
  }
  // 具体的命令
  class ConcreteCommand implements Command
  {
    private $_receiver;
    public function __construct($receiver)
    {
      $this->_receiver = $receiver;
    }
    public function execute()
    {
      $this->_receiver->action();
    }
  }
  // 具体命令1
  class ConcreteCommand1 implements Command
  {
    private $_receiver;
    public function __construct($receiver)
    {
      $this->_receiver = $receiver;
    }
    public function execute()
    {
      $this->_receiver->action1();
    }
  }
  // 具体命令2
  class ConcreteCommand2 implements Command
  {
    private $_receiver;
    public function __construct($receiver)
    {
      $this->_receiver = $receiver;
    }
    public function execute()
    {
      $this->_receiver->action();
      $this->_receiver->action1();
    }
  }
  $objRecevier = new Receiver("小狗");
  $objRecevier1 = new Receiver("刺蛇");
  $objRecevier2 = new Receiver("雷兽");
  $objCommand = new ConcreteCommand($objRecevier);
  $objCommand1 = new ConcreteCommand1($objRecevier);
  $objCommand2 = new ConcreteCommand($objRecevier1);
  $objCommand3 = new ConcreteCommand1($objRecevier1);
  $objCommand4 = new ConcreteCommand2($objRecevier2); // 使用 Recevier的两个方法
  $objInvoker = new Invoker();
  $objInvoker->setCommand($objCommand);
  $objInvoker->setCommand($objCommand1);
  $objInvoker->executeCommand();
  $objInvoker->removeCommand($objCommand1);
  $objInvoker->executeCommand();
  $objInvoker->setCommand($objCommand2);
  $objInvoker->setCommand($objCommand3);
  $objInvoker->setCommand($objCommand4);
  $objInvoker->executeCommand();
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