When building a back-end program, it is best to first retrieve the PIDs or only the attributes of an item.

当构建一个后端程序时，最好是首先检索PID或只是检索条目的属性。

youdao

When building a back-end program, it is best to first retrieve the PIDs or only the attributes of an item.

当构建一个后端程序时，最好是首先检索PID或只是检索条目的属性。

youdao