ruby$stdin.gets不在屏幕上显示字符

这样的用户交互有一个gem: highline .

password = ask("Password:  ") { |q| q.echo = false }

甚至:

password = ask("Password:  ") { |q| q.echo = "*" }

如果你的系统 stty :

`stty -echo`
print "Password: "
pw = gets.chomp
`stty echo`
puts ""

您可以使用 STDIN.noecho IO/控制台模块的方法:

require 'io/console'
pw = STDIN.noecho(&:gets).chomp

你要确保你的代码是等幂的…这里列出的其他解决方案假设您希望在echo重新打开的情况下退出此功能块。好吧,如果在输入代码之前关闭了它,并且希望它保持关闭状态呢?

stty_settings = %x[stty -g]
print 'Password: '

begin
  %x[stty -echo]
  password = gets
ensure
  %x[stty #{stty_settings}]
end

puts

print 'regular info: '
regular_info = gets

puts "password: #{password}"
puts "regular:  #{regular_info}"

这是解决方案 Unix系统 :

  begin
    system "stty -echo"
    print "Password: "; pass1 = $stdin.gets.chomp; puts "\n"
    print "Password (repeat): "; pass2 = $stdin.gets.chomp; puts "\n"
    if pass1 == pass2
      # DO YOUR WORK HERE
    else
      STDERR.puts "Passwords do not match!"
    end
  ensure
    system "stty echo"
  end

与格伦的回答类似,但更完整: http://dmathieu.com/articles/development/ruby-console-ask-for-a-password/