use think\Model;
class person extends Model
{
protected $connection =null;
protected $name = 'person';// 设置数据表（不含前缀）
}

class info extends Model
{
protected $connection =null;
protected $name = 'info';// 设置数据表（不含前缀）
}

两边类构造函数都如此：
public function __construct()
{

$this->connection = include APP_PATH . 'car_database.php';
echo 'info<br/>';
print_r($this->getTableFields());
}

为什么这么写返回的是到同一个对象了
$a=new info();
$a=new person();
exit;

info
Array ( [0] => id [1] => brand_id [2] => series_id [3] => year [4] => name [5] => cheliangleixing [6] => changshangzhidaojia [7] => create_time [8] => create_id [9] => update_time [10] => update_id [11] => pailiang [12] => biansuxiang [13] => changkuangao [14] => shangshiriqi [15] => tingchanriqi [16] => huanbaobiaozhun [17] => chandishuxing [18] => zhengchezhibao [19] => cheliangxingzhi [20] => cheliangyanse [21] => dangweigeshu [22] => qudongfangshi [23] => zongheyouhao [24] => cheshenjiegou [25] => fadongjigangshu [26] => zuidagonglv [27] => frommd5 [28] => fromurl )


person
Array ( [0] => id [1] => brand_id [2] => series_id [3] => year [4] => name [5] => cheliangleixing [6] => changshangzhidaojia [7] => create_time [8] => create_id [9] => update_time [10] => update_id [11] => pailiang [12] => biansuxiang [13] => changkuangao [14] => shangshiriqi [15] => tingchanriqi [16] => huanbaobiaozhun [17] => chandishuxing [18] => zhengchezhibao [19] => cheliangxingzhi [20] => cheliangyanse [21] => dangweigeshu [22] => qudongfangshi [23] => zongheyouhao [24] => cheshenjiegou [25] => fadongjigangshu [26] => zuidagonglv [27] => frommd5 [28] => fromurl )