我发现在 Python 或 Common Lisp 中，您可以在运行时列出库的内容，这很方便。 Haskell 是否有同样的东西，特别是在 GHCI 提示符下？
GHCi 有一个:browse列出模块内容的命令：
Prelude> :browse Data.List
(\\) :: (Eq a) => [a] -> [a] -> [a]
delete :: (Eq a) => a -> [a] -> [a]
deleteBy :: (a -> a -> Bool) -> a -> [a] -> [a]
deleteFirstsBy :: (a -> a -> Bool) -> [a] -> [a] -> [a]
elemIndex :: (Eq a) => a -> [a] -> Maybe Int
...
Prelude> :help
...
:browse[!] [[*]<mod>] display the names defined by module <mod>
(!: more details; *: all top-level names)
...
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