如何让ruby从数组中随机选取

Question

我对编程很陌生，我正在尝试制作一个基本的石头剪刀程序。

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

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

Answer 1

您可以使用sample:

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

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