Whoocus

defmodule Hello do
    def hello do
        IO.puts "Hello Tajima!!!"
    end

    def goody do
        IO.puts "Good night Tajima!!!"
    end

    def dir do
        {:ok, files} = File.ls(".")
        #IO.puts "こんにちは。"
        #File.mkdir("dir")
        Enum.map(files, &IO.puts(&1))
    end
end