构造函数还将从数据库检索最大项目数，这将简化错误管理。

The constructor also retrieves the maximum item number from the database, which simplifies error management.

youdao

构造函数还将从数据库检索最大项目数，这将简化错误管理。

The constructor also retrieves the maximum item number from the database, which simplifies error management.

youdao