摘要： ![sicp每日一题[2.80]](https://img2024.cnblogs.com/blog/3223467/202411/3223467-20241117085656108-1861597208.png)
Exercise 2.80 Define a generic predicate =zero? that tests if its argument is zero, and install it in the generic arithmetic package. This operation s 阅读全文
Exercise 2.80 Define a generic predicate =zero? that tests if its argument is zero, and install it in the generic arithmetic package. This operation s 阅读全文