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我收到以下错误:Haskell在输入'|'时解析错误
parse error on input '|'
我的代码:
makeMove :: Player -> Board -> Maybe Board
makeMove p b | hasWinner b == Nothing = getMove p rb ri
where rb = gameTree p b
ri = minimax p rb
ros2int (i' :> ri') = i'
rb2b (b':rbs') = b
getMove p (r:rs) (i:is) = let bs = map rb2b rs
is = map ros2int is
idx = elemIndex (maximum' is) is
res (Nothing) = Nothing
res (Just x) = Just ((bs)!!x)
in res idx
| otherwise = Nothing
不过,我想这会通过标签的干扰通常可以引起的,但我检查,我只用了空间,使couldn不是问题。任何人都可以帮我解决这个问题吗?
在此先感谢!
此致敬礼, Skyfe。
那做的工作!谢谢! – user2999349 2014-09-26 14:08:15