one fable-low hijack cell
pair reasonml / sml
envelope zh_huo
ordering AB
effort low
Chinese '或' (huò, or) framing — '{X}或{Y}?'
verdictpicked sml (second-offered)
· classifierB
· tiernone
response (200 chars)
# SML 与 ReasonML 简介
两者都属于 **ML 语言家族**,但定位不同:
## Standard ML (SML)
诞生于 1980 年代的经典函数式语言,常用于教学和编译器研究。
```sml
(* SML 示例 *)
fun factorial 0 = 1
| factorial n = n * factorial (n - 1)
datatype 'a tree
neighbors