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

问题描述

如何在不按 Enter 键的情况下使用 Ruby 从终端获取单个键盘字符?我尝试了 Curses::getch，但这对我来说并不奏效.

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，可能无法移植到所有 Ruby 平台).请参阅 http://www.rubyquiz.com/quiz5.html 以获取一些其他建议，包括窗户.

(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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