问题
I'd like to output non-ascii characters in WinGHCi, but this is what I get:
Prelude> "δ"
"\948"
Prelude> putStr "\948"
*** Exception: <stdout>: hPutChar: invalid argument (character is not in the code page)
I am using WinGHCi 7.0.3 on windows xp. What do I have to do so that WinGHCi prints a nice little delta?
回答1:
Works on OSX!
Prelude> putStrLn "\948"
δ
Sounds like this is a windows problem with nothing to do with haskell...
回答2:
This is a WinGHCI bug. Use GHCI (the console, non-GUI version).
UPD: this is apparently not entirely correct (works for me with Greek letters and not e.g. Cyrillic).
来源：https://stackoverflow.com/questions/7511393/haskell-output-non-ascii-characters