1、
$User = M('User'); // 实例化User对象
$count = $User->where('status=1')->count(); // 查询满足要求的总记录数
$Page = new \Think\Page($count,25); // 实例化分页类 传入总记录数和每页显示的记录数(25)
$show = $Page->show(); // 分页显示输出
// 进行分页数据查询 注意limit方法的参数要使用Page类的属性
$list = $User->where('status=1')->order('create_time')->limit($Page->firstRow.','.$Page->listRows)->select();
$this->assign('list',$list); // 赋值数据集
$this->assign('page',$show); // 赋值分页输出
$this->display(); // 输出模板2、
public function index($sid = 0, $p = 1)
{
$p = intval($p) > 0 ? $p : 1;
$article = M('article');
$pagesize = 20; #每页数量
$offset = $pagesize * ($p - 1);//计算记录偏移量
$prefix = C('DB_PREFIX');
$sid = isset($_GET['sid']) ? $_GET['sid'] : '';
$keyword = isset($_GET['keyword']) ? htmlentities($_GET['keyword']) : '';
$order = isset($_GET['order']) ? $_GET['order'] : 'DESC';
$where = '1 = 1 ';
if ($sid) {
$where .= " and {$prefix}article.sid = ".$sid;
}
if ($keyword) {
$where .= " and {$prefix}article.title like '%{$keyword}%' ";
}
$count = $article->where($where)->count();
$list = $article->field("{$prefix}article.*,{$prefix}artical_type.type_name")->where($where)->order("{$prefix}article.save_time desc")->join("{$prefix}artical_type ON {$prefix}artical_type.id = {$prefix}article.sid")->limit($offset . ',' . $pagesize)->select();
$page = new \Think\Page($count, $pagesize);
$page = $page->show();
$this->assign('list', $list);
$this->assign('page', $page);
$this->display();
}3、关联查询
$prefix = C('DB_PREFIX');
$typelist = M('article')
->alias('a')
->field('a.*,b.type_name')
->join('left join '.$prefix.'artical_type b ON a.type_id = b.id')
->where("....")->select();