thinkphp实现数据分页

方法一：

 

 1 public function show_cate(){

 2         

 3         $category_name = array(

 4             '1' => '政法综治前沿',

 5             '2' => '政策法规',

 6             '3' => '平安建设',

 7             '4' => '通知公告',

 8             '5' => '理论研讨',

 9             '6' => '本地动态',

10             '7' => '队伍建设',

11             );

12         $category_id = I('get.category_id');

13         $model = M('zx_article');

14                                  //计算要显示的总数据条数

15         $count = $model->where('category_id ='.$category_id)->order('article_id desc')->count();

16                                 //实例化Page类，传入总条数和每页要显示的条数

17         $page = new \Think\Page($count,2);

18                               //使用limit函数指定查询和操作的数量

19         $data = $model->where('category_id ='.$category_id)->order('article_id desc')->limit($page->firstRow.','.$page->listRows)->select();

20                                 //传数据给模板

21         $this->assign('data',$data);

22                                //调用Page类的show()函数
23         $this->assign('page',$page->show());

24         $this->assign('name',$category_name[$category_id]);

25         $this->display();

26     }