摘要： ![sicp每日一题[2.28]](https://img2024.cnblogs.com/blog/3223467/202409/3223467-20240925112144268-406400325.png)
Exercise2.28 Write a procedure fringe that takes as argument a tree (represented as a list) and returns a list whose elements are all the leaves of th 阅读全文
Exercise2.28 Write a procedure fringe that takes as argument a tree (represented as a list) and returns a list whose elements are all the leaves of th 阅读全文