public function articleList()
 {
     $Article = new ArticleModel();
     $announcements = $Article->getAnnouncements(0);
     $this->assign('announcements', $announcements);
     $this->assign('totalNum', count($announcements));
     $this->display();
 }
 public function index()
 {
     $Article = new ArticleModel();
     $Slide = new SlideModel();
     $slides = $Slide->getSlides();
     $announcements = $Article->getAnnouncements(3);
     $this->assign('announcements', $announcements);
     $this->assign('slides', $slides);
     $jobs = $Article->getJobs(4);
     $this->assign('jobs', $jobs);
     $this->display();
 }