如何在Ruby中使用数组？

我是Ruby的新手。 我正试图用ruby编写一个简单的交互式游戏，但我被卡住了。需要帮助才能继续。 以下是概念：

money         = [100, 200, 300, 400]
beneficiaries = ["John", "Sam", "Mary"]
cost1         = [50, 25, 30, 75, 18]
cost2         = [120, 150, 200, 250]
gift1         = [" crayon ", " Pencil ", " Biro "]
gift2         = [" bag ", " shoe ", " Radio "]
cashowned     = [50]
a             = money.sample
b             = cost1.sample
c             = cost2.sample
d             = gift1.sample
e             = gift2.sample
f             = cashowned
puts " Hi, what is your name? "
puts
name = gets.chomp
puts
puts " #{name} is a nice name."
puts
puts "#{name} you have #{f} in your bank account."
puts
puts "Roll the dice and let's see how much you just earned."
puts
gets.chomp.to_i
dice1 = a
puts "#{name} you just earned: #{dice1}"
puts
gets.chomp.to_i
Cashowned = dice1 + f
puts "Your account balance is now : #{cashowned}"
puts
gets.chomp.to_i

我被困在这里了。我想重复/循环这个顺序，这样我就可以按成本赠送礼物，并从拥有的现金中扣除。但拥有的现金并没有更新。 一个更简单的方法去做这将是赞赏。

---

谢谢。

Ruby是一种区分大小写的语言

首先将变量声明为：

cashowned = [50]

稍后，您将尝试使用另一个变量名进行更新：

Cashowned = dice1 + f

请注意，

“cashowned”

和

“cashowned”

是不同的变量

更新： 第7行，您有：

cashowned = [50] 

我的问题是，为什么不只使用：

cashowned = 50

?

这样做会导致错误：

数组不能强制为Fixnum（TypeError）

您正在尝试将Fixnum与数组求和

参见代码：

money = [100, 200, 300, 400]
beneficiaries = ["John", "Sam", "Mary"]
cost1 = [50, 25, 30, 75, 18]
cost2 = [120, 150, 200, 250]
gift1 = ["crayon", "Pencil", "Biro"]
gift2 = ["bag", "shoe", "Radio"]
cashowned = 50
a = money.sample
b = cost1.sample
c = cost2.sample
d = gift1.sample
e = gift2.sample
f = cashowned
puts "Hi, what is your name?"
name = gets.chomp
puts "#{name} is a nice name."
puts "#{name} you have #{f} in your bank account."
puts "Roll the dice and let's see how much you just earned."
gets.chomp.to_i
dice1 = a
puts "#{name} you just earned: #{dice1}"
gets.chomp.to_i
cashowned = dice1 + f
puts "Your account balance is now : #{cashowned}"
gets.chomp.to_i

并查看测试结果：

---

如果要更新/访问数组中的值，需要使用索引运算符

cashowned[0] = dice1 + f[0]

---

这是我做的一个简单的游戏。它并不像我所说的那样完美，但它可以工作，并向您展示我认为您需要的代码类型注意while循环中的while循环和if语句。

#set your variables

b = 200 #initial balance
br = -500 #account limit
dice = [1, 2, 3, 4, 5, 6]

puts "State name?"
n = gets.chomp
puts ""
puts "Greetings #{n}"
puts ""
puts "============================"
puts "Your initial balance is #{b}"
puts "============================"
puts ""
puts "If it reaches or exceeds #{br}"
puts "you'll be declared bankrupt!"
puts ""


while b > br do

#rolling the positive di   
   puts "Roll good di? (y/n)"
   puts ""
        a = gets.chomp.downcase

        if a == "y"
            pd = dice.sample*100
            b += pd 
            puts ""
            puts "****you scored #{pd}****"
            puts "============================"
            puts" new balance: #{b}"
            puts "============================"
            puts ""
        else
            puts "============================"            
            puts "your balance remains at #{b}"
            puts "============================"            
            puts ""
        end


#rolling the negative di  
   puts "Roll evil di? (y/n)"
   puts ""
   ans = gets.chomp.downcase

        if ans == "y"
            nd = dice.sample*-100
            b += nd
            puts ""
            puts "****you scored ****#{nd}****"
            puts "============================"
            puts "new balance: #{b}" 
            puts "============================"
            puts ""
        else
            puts "============================"            
            puts "your balance remains at #{b}"
            puts "============================"            
            puts ""
        end


#option to repeat
   puts ""
   puts "Continue playing (y/n)?"
   puts ""
   ans = gets.chomp.downcase
   puts ""

        if ans == "n" 
            puts ""
            puts "============================"            
            puts "final balance is #{b}"
            puts "============================"            
            puts ""        
            exit

        else
            b
        end

end

puts "You have now reached/exceeded your limit"
puts "of #{br}, so your account has been frozen"
puts ""

---

运行此代码，查看并修改它以满足您的需要。

谢谢。我的主要项目还可以。我只在贴出的问题上有错别字。我仍然不能更新这个变量。它保持它的第一个值。好吧，我放弃。有谁知道如何编写这个简单的游戏吗？你掷骰子，从随机选择奖励的阵列中获得奖励。奖励将添加到拥有的现金中。然后每隔一段时间，你就可以从收入中扣除一笔费用，而不是获得奖励。这个循环一直持续，直到你达到一个预先设定的最大值或破产。请帮忙。