The system shows itself with tree dynamic menu to user, So it is used as a E-book.

可以采用树形动态菜单的方式展现给用户，因此本系统又可以作为一本电子书。

youdao

The system shows itself with tree dynamic menu to user, So it is used as a E-book.

可以采用树形动态菜单的方式展现给用户，因此本系统又可以作为一本电子书。

youdao