书架空间逻辑测试

A wooden bookshelf consisting of {argument name="shelf count" default="three"} shelves: On the top shelf, there should be {argument name="top shelf books" default="one"} book, on the second shelf, there should be {argument name="middle shelf books" default="three"} books, and on the bottom shelf, there should be seven books.

一个由 {argument name="number of shelves" default="三"} 层组成的木制书架：顶层应有 {argument name="top shelf count" default="一"} 本书，第二层应有三本书，底层应有 {argument name="bottom shelf count" default="七"} 本书。