Question

我正在尝试用Ruby创建一个老虎机游戏，这就是我所拥有的。它仍然无法运行，并说最后一行有错误，我不知道是什么或如何解决它。

我需要它有类似的输出：

您今天想要玩多少钱？ 25个
  总现金：25美元   你想多少赌？ 10个
  樱桃 - 橙 - 橙
  你赢了20美元   你想继续吗？（是的，继续）是的   总现金：35美元   你想多少赌？   等...

我已经在那里设置了奖金，就像你拿到两个，你赢了两次你的赌注，如果你赢了三个，你赢了三次你的赌注。

但我收到错误：33: syntax error, unexpected $end, expecting kEND cash += cash + winnings

我的代码有什么问题，我该如何解决？

    def multiplier(s1, s2, s3)

          if s1 == s2 and s2 == s3:
            multiplier = 3
          elsif s1 == s2 or s2 == s3 or s1 == s3:
            multiplier = 2
          else
            multiplier = 0;

          return multiplier


    def main()

    slotImageList = ['Cherry', 'Orange', 'Plum', 'Bell', 'Melon', 'Bar']

    cash = gets
    puts "How much total money would you like to play with today? " +cash
    while True:
        puts("Total cash:  $", cash)
        bet = gets
        puts "How much would you like to bet? " +bet

    cash = (cash - bet)

    slotImage1 = slotImageList.sample
    slotImage2 = slotImageList.sample
    slotImage3 = slotImageList.sample

    puts "slotImage1", " - ", "slotImage2", " - ", "slotImage3"

    winnings = bet * multiplier(slotImage1, slotImage2, slotImage3)
    puts "You have won $" +winnings

    cash = cash + winnings

    cont = gets
    puts "Would you like to continue? (yes to continue) " +cont
    if cont != "yes":
        puts "You have ended with $" +cash
    else
        puts " "
    end

Answer 1

当您看到消息时：

意外的$ end，期待kEND

你可以把它翻译成，“我到达了文件结尾（”$ end“），但我没想到，因为我还在等着看end语句。 “这意味着您忘记键入至少一个已配对的end，并且您需要检查代码并确保其缩进正确，以便您可以直观地匹配语句。

以下是将代码修正为正确的结果。在某些地方你似乎使用缩进来关闭一个块（比如Python）而不是正确的语法。

def multiplier(s1, s2, s3)
  if s1==s2 && s2==s3
    3
  elsif s1==s2 || s2==s3 || s1==s3
    2
  else
    0
  end
end

def run_slots!
  slotImageList = %w[Cherry Orange Plum Bell Melon Bar]

  print "How much total money would you like to play with today? "
  cash = gets.chomp.to_i
  loop do
    puts "Total cash:  $#{cash}"
    print "How much would you like to bet? "
    bet = gets.chomp.to_i

    cash -= bet

    slotImage1 = slotImageList.sample
    slotImage2 = slotImageList.sample
    slotImage3 = slotImageList.sample

    puts "#{slotImage1} - #{slotImage2} - #{slotImage3}"

    winnings = bet * multiplier(slotImage1, slotImage2, slotImage3)
    puts "You have won $#{winnings}"

    cash += winnings

    print "Would you like to continue? (yes to continue) "
    unless gets.chomp=="yes"
      puts "You have ended with $#{cash}"
      break
    end
  end
end

run_slots! if __FILE__==$0

如果我对它采取更多的自由，我可以写下这个：

class SlotGame
  SLOT_COUNT = 3
  TOKENS     = %w[Cherry Orange Plum Bell Melon Bar]
  KEEP_PLAYING_RESPONSES = %w[y yes sure ok go]

  def initialize(cash=nil)
    unless cash
      begin
        print "How much total money would you like to play with today? "
        cash = gets.to_i
        puts "You must have a positive bank account to play!" if cash<=0
      end until cash > 0
    end
    @cash = cash
  end

  def play_forever
    begin
      # Using begin/end ensures one turn will be played
      # before asking the player if they want to go on
      play_one_turn
    end while @cash>0 && keep_playing?
    puts "You have ended with $#{@cash}; goodbye!"
  end

  def play_one_turn
    puts "Total cash: $#{@cash}"

    begin
      print "How much would you like to bet? "
      bet = gets.to_i
      puts "You only have $#{@cash}!" if bet > @cash
    end until bet <= @cash
    @cash -= bet

    results = SLOT_COUNT.times.map{ TOKENS.sample }
    puts results.join(' - ')
    winnings = bet * multiplier(results)

    if winnings>0
      @cash += winnings
      puts "You just won $#{winnings}!"
    else
      puts "Sorry, you're not a winner."
    end
  end

  def keep_playing?
    print "Would you like to continue? "
    KEEP_PLAYING_RESPONSES.include?(gets.chomp.downcase)
  end

  private # Don't let anyone outside run our magic formula!
    def multiplier(*tokens)
      case tokens.flatten.uniq.length
        when 1 then 3
        when 2 then 2
        else 0
      end
    end
end

SlotGame.new.play_forever if __FILE__==$0

Answer 2

确定!!!我想我已经从你的代码中找到了它，@ Phrogz !!!

要从数组中随机选择，就像老虎机一样，我使用了slotImageList.shuffle.first，它会对数组进行混洗，并获取混洗数组的第一个元素。

def multiplier(s1, s2, s3)
  if s1==s2 && s2==s3
    3
  elsif s1==s2 || s2==s3 || s1==s3
    2
  else
    0
  end
end

def run_slots!
  slotImageList = %w["Cherry", "Orange", "Plum", "Bell", "Melon", "Bar"]
  print "How much total money would you like to play with today? "
  cash = gets.chomp.to_i
  loop do
    puts "Total cash:  $#{cash}"
    print "How much would you like to bet? "
    bet = gets.chomp.to_i

    cash -= bet

    slotImage1 = slotImageList.shuffle.first
    slotImage2 = slotImageList.shuffle.first
    slotImage3 = slotImageList.shuffle.first

    puts "#{slotImage1} - #{slotImage2} - #{slotImage3}"

    winnings = bet * multiplier(slotImage1, slotImage2, slotImage3)
    puts "You have won $#{winnings}"

    cash += winnings

    print "Would you like to continue? (yes to continue) "
    unless gets.chomp=="yes"
      puts "You have ended with $#{cash}"
      break
    end
  end
end

run_slots! if __FILE__==$0

谢谢大家！：d

编程Ruby老虎机游戏

2 个答案: