19 Mar
2020
19 Mar
'20
11:36 a.m.
GHC 8.6.5 ===== import Data.Char main = do putStr "Give me some input: " l <- getLine putStrLn $ map toUpper l ====run==== my str Give me some input:MY STR ===not:=== Give me some input:my str MY STR -- nowsnow <nowsnow@163.com>