浏览量接口

public function browse()
{
    $id = I('get.jour_id');   //新闻id
    $article = M('app_journalism')->where(['id'=>$id])->find();
    if(!$article){
        $this->success('未找到文章！');exit;
    }
    $res=M("app_journalism")->where(['id'=>$id])->save(['browse'=>$article['browse']+1]);
    $this->returnBack(0, '成功', array('num' => $res));
}