我是OCaml的新手,我不知道为什么这会给我一个语法错误:
type ('nonterminal, 'terminal) pe =
| Empty
| T of t
| N of n
| Seq of list
| Choose of list
| Star of e
| Not of e;;
type ('nonterminal, 'terminal) pe_tree =
| Is_empty
| Leaf of t
| Node of (n,tree)
| Sequence of list
| Repeat of list
| Is_not of e;;
所有它说的是第14行字符0-1(这是哪里| Sequence of list)有一个语法错误,我无法弄清楚为什么!
ocaml ×1