如何让ruby从数组中随机选取

我对编程相当陌生，我正在尝试做一个基本的石头剪刀程序

我已经用1=石头，2=布，3=剪刀制作了这个程序。但是现在我想试着用实际的单词而不是数字。如何让ruby从我的数组中随机选择，我的

谢谢

mine = ["Rock", "Paper", "Scissors"]
mine.sample(1 + rand(mine.count))
puts 'Write your choice, Rock, Paper, or Scissors'
yours = gets.chomp.to_s
if yours == "Rock"
    puts 'Your choice is Rock'


elsif yours == "Paper"
    puts 'Your choice is Paper'

else yours == "Scissors"
    puts 'Your choice is Scissors'

end
puts "--------------------------"
if mine == "Rock"
    puts 'Computer: My choice is Rock'


elsif mine == "Paper"
    puts 'Computer: My choice is Paper'

else mine == "Scissors"
    puts 'Computer: My choice is Scissors'

end


print 'Computer: My choice was: '
print mine
puts

if mine == "Rock" && yours == "Paper"
    puts "==========="
    puts "Paper Wins!"
    puts "==========="
elsif mine == "Paper" && yours == "Rock"
    puts "==========="
    puts "Paper Wins!"
    puts "==========="
elsif mine == "Paper" && yours == "Scissors"
    puts "=============="
    puts "Scissors Wins!"
    puts "=============="
elsif mine == "Scissors" && yours == "Paper"
    puts "=============="
    puts "Scissors Wins!"
    puts "=============="
elsif mine == "Scissors" && yours == "Rock"
    puts "=========="
    puts "Rock Wins!"
    puts "=========="
elsif  mine == "Rock" && yours == "Scissors"
    puts "=============="
    puts "Rock Wins!"
    puts "=============="
else
    puts "======================"
    puts "It's a tie! TRY AGAIN!"
    puts "======================"
end

---

您可以使用

示例

：

[1, 2, 3].sample #=> 1
[1, 2, 3].sample(2) #=> [3, 1]

---

考虑定义散列

winners={:rock=>：scissors，：scissors=>：paper，：paper=>：rock}

。假设玩家1和玩家2分别选择玩

c1

和

c2

。然后，如果玩家1赢了

赢家[c1]==c2

，玩家2赢了

赢家[c2]==c1

；否则就是平局。