laravel中软删除字段deleted_at修改

我们知道laravel软删除的功能很好用

model软删除字段名修改

```

use Illuminate\Database\Eloquent\Builder;
    public static function bootSoftDeletes()
    {
        static::addGlobalScope('delete_time', function (Builder $builder) {
            $builder->where(self::$_table . '.delete_time', 0);
        });
    }
```