public function edit(){ $Article=D('Article'); $Articler=$Article->find(I('id')); &

Has anyone encountered the problem of modifying the page and not modifying the image? After submission, the image is gone.-PHP Chinese Network Q&A

public function edit(){
$Article=D('Article');
$Article=$Article->find(I('id'));
$this-> ;assign('Articler',$Articler);
if(IS_POST){
$date['id']=I('id');
$date['title']=I( 'title');
$date['desc']=I('desc'); ##                                                                                                                                                     out out can be ']!=''){
$ upload->exts =array('jpg', 'gif', 'png', 'jpeg'); // Set attachment upload type
$upload->rootPath ='./'; // Set attachment Upload root directory
‐    ‐ ’ ’ s ’ s s t t ’ s to be uploaded $upload->savePath ='./Uploads/'; ;
                                                                                                                                                                                                                             {//Upload successful
                    $date['pic']=$info['savepath'].$info['savename'];
               }

            }else{

            }
            if($Article->create($date)){
               if($Article->save()){
                $this->success("修改文章成功！",U('lst'),3);
            }else{
                $this->error('修改文章失败！','',3);
            }
            }else{
                $this->error($Article->getError());

            }
            return;
        }
        $cateres=D('cate')->select();
        $this->assign('cateres',$cateres);
        $this->display();
    }