<ul class="contrast-ul">
　　
<!-- <li>id都在这里面</li> -->
    </ul>
  
    </div>
    <div class="contrast-act clearfix"> <a href="javascript:;" target="_self" class="go-contrasts fl">开始对比</a> <a href="javascript:;" class="go-reset fr">清空</a> </div>
    <script>
     $(‘.go-contrasts‘).click(function(){
         var dbli = $(‘.contrast-ul‘).find(‘li‘);//收集所有<li>里面的 id
        var t_Str = ‘‘;
        $.each(dbli,function(index,ele){
            t_Str = t_Str + ‘_‘ + $(ele).attr("data-platid");  //以 _ 分隔
        })
        t_Str=t_Str.substr(1,t_Str.length-1);
         var url = "{:U(‘Index/data_duibi‘)}" + ‘/data/‘ + t_Str;
        location.href = url;
     });
      
        //30_29_29 join
    </script>

    public function data_duibi(){
        $data = explode(‘_‘, I(‘get.data‘));
        $grade = $this->grade_model->where(array(‘id‘=>array(‘in‘,$data)))->select();
        $this->assign(‘grade‘,$grade);
        
        foreach($grade as $k=>$r){
            $tmp = $this->archives_model->where(array(‘delete‘=>0,‘id‘=>$r[‘aid‘]))->find();
            $archives[] = $grade[$k][‘archives‘] = $tmp;
            
        }
        $this->assign(‘archives‘,$archives);
        $this->display(":data_duibi");
    }