';     }     public function blance()     {
          echo '哈口气,';         // TODO: Implement blance() method.     }     public function start(){
          $this->enginee();         for($i=0;$i<=10;$i++){
              $this->blance();             echo '平稳飞行,
';         }     } } $feiji = new Fly(); $feiji->start();