有时模型并不需要时间字段，比如一些配置项相关的数据表，可以在相应的Model中，添加 public $timestamps = false; 比如：

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class Setting extends Model
{
    use HasFactory;

    protected $primaryKey = 'name';

    public $timestamps = false;

    protected $fillable = [
        'name',
        'value'
    ];
}