About GHCi
I find that Haskell interpreter is rather difficult to use:
1."f=3" is a legal statement in Haskell, i.e. define "f" as
a
constant function, but a parse error occurs.
"let f=3" is illegal, "let" and "in" are used together, but
it works in GHCi.
2. if I happen to print out an infinite list, I don't know how
to interrupt it, when press Ctrl+C, GHCi just quit.
3. I can't use "import" to import modules. There are
many sub
directories in the imports directory, but I don't know
how to
import libraries in concurrent, win32, util, lang and
objectio
