对列表执行大多数操作都将需要考虑两种情况:空列表以及带有标题和子列表的列表.通常，您的基本案例处理空列表，而归纳案例处理带有子列表的列表.

Doing most anything with lists will require that you consider two cases: the empty list and a list with a head and a sublist. Usually your base case is handling the empty list and your inductive case is handling the list with sublist.

首先考虑您的基本情况:

First consider your base case:

cons([], null).

现在处理您的归纳案件:

Now deal with your inductive case:

cons([X|Xs], next(X, Rest)) :- cons(Xs, Rest).