thinkphp5.0 cache緩存機制

首先引用緩存文件

use think\Cache;

    public function index(){

        $data = Cache::get('showw');//去緩存
        if($data){
        　　echo '我是老緩存';
        　　$this->assign('data',$data);
        }else{
            db('cate')->cache('showw',5)->select();
            $data = Cache::get('showw');
            echo '我是剛緩存';
            $this->assign('data',$data);
         }


        //return $this->fetch();
    }