-module(helloworld).
-import(string,[to_upper/1]).
-export([start/0]).
start() ->
Str1 = "hello world",
Str2 = to_upper(Str1),
io:fwrite("~p~n",[Str2]).
-module(helloworld).
-import(string,[to_upper/1]).
-export([start/0]).
start() ->
Str1 = "hello world",
Str2 = to_upper(Str1),
io:fwrite("~p~n",[Str2]).