我正在尝试用 ml 解决一个问题,但我有点卡住了。原谅我这是微不足道的代码,但回答它会解决我的大部分问题。
代码:
val sorted = ([3, 2, 1], [5, 8, 4]);
fun loop ([]) = []
| loop (x::xs) = [3] @ [4];
loop sorted;
错误:
Error-Can't unify 'a list with int list * int list (Incompatible types) Found near loop (sorted)
Static errors (pass2)