如何在不按Enter的情况下获取单个字符? [英] How to get a single character without pressing enter?

问题描述

如何在不使用Enter的情况下使用Ruby从终端获得单个键盘字符? 我尝试了Curses::getch，但这对我来说真的不起作用.

How can I get a single keyboard character from the terminal with Ruby without pressing enter? I tried Curses::getch, but that didn't really work for me.

推荐答案

http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/2999

#!/usr/bin/ruby

begin
  system("stty raw -echo")
  str = STDIN.getc
ensure
  system("stty -raw echo")
end
p str.chr

(在我的OS X系统上测试过，可能无法移植到所有Ruby平台上).有关其他建议，请参见 http://www.rubyquiz.com/quiz5.html ，其中包括Windows.

(Tested on my OS X system, may not be portable to all Ruby platforms). See http://www.rubyquiz.com/quiz5.html for some additional suggestions, including for Windows.

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