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11.1 P107笔误 #58

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youwillbe opened this issue Mar 19, 2021 · 1 comment

youwillbe commented Mar 19, 2021

原文为:

addOneMaybe :: Maybe Int -> Maybe Int
addOneMaybe (Just a) = Just (a + 1）
addOneMaybe Nothing = Nothing

addOneMaybe (Just 3)
-- 4
addOneMaybe Nothing
-- Nothing

此处应为:

addOneMaybe (Just 3)
-- Just 4

Owner

winterland1989 commented Mar 19, 2021

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