TP中使用原生的MySQL语句的方法（代码）

$Model = M();        
$result = $Model->query($sql);//查询
$Model->execute($sql_ex);//更新修改删除

  <?php
    /**
     * 一亩地
     */
    public function dealYimudi(){
        $sql = "SELECT * from yimudi y LEFT JOIN yimudi_use yu on y.yimudi_id =yu.yimudi_id WHERE  yu.yimudi_id = 12 and yu.use_status in (1,2) and y.use_end_time+86399 < UNIX_TIMESTAMP(now())";

        $Model = M();
        $result = $Model->query($sql);

        $yimudi_ids =[];
        foreach ($result as $key => $value) {
            $yimudi_ids[] =$value['id'];
        }
        foreach ($result as $key1 => $value1) {
           if(in_array($value1['id'],$yimudi_ids)){
            $str_yimudi_id = $value1['id'];
            $sql_ex = "update yimudi_use set use_status = 6 where id = '$str_yimudi_id'";

              $Model->execute($sql_ex);

           }
        }
        // $result = $Model->query($sql);
        // dump($result);die;
    }