Get line feed with getch in Ruby

问题

I have the following code:

require 'io/console'
loop do
  character = STDIN.getch
  break if character == "\n"
  print "*"
end

The code is working, but I have to press the Enter key then another key to break the loop. Why? I have this issue only with the line feed.

来源：https://stackoverflow.com/questions/47232924/get-line-feed-with-getch-in-ruby