Question

我的代码出现问题，似乎无法弄清楚我需要改变什么。这是我的三个文件，底部是我得到的错误。我有完全相同的代码18次，其中一半给我这个错误。

初始化等级，套装和符号

def initialize(the_rank, the_suit) 
  @rank = the_rank  
  @suit = the_suit  
  @symbols = [nil, nil, '2', '3', '4', '5', '6', '7', '8', '9', '10', 'J', 'Q', 'K', 'A']  
end

新文件Pokerhand.rb：要求＆＃34; ./常数＆＃34; 要求＆＃34; ./卡＆＃34; 要求＆＃34; ./ Deck＆＃34; 要求＆＃34; ./ CardSpaceship＆＃34;

class PokerHand < Deck
  include Constants
  attr_reader :hand_type

  def initialize(the_cards)
    @cards = [ ]
    @hand_type = UNCLASSIFIED
  for card in the_cards
     @cards << card
  end
  end

    # Straight
  elsif @cards[0].rank == @cards[1]+1.rank &&
    @cards[1].rank == @cards[2]+1.rank &&
    @cards[2].rank == @cards[3]+1.rank &&
    @cards[3].rank == @cards[4]+1.rank   

    @hand_type = STRAIGHT

  end
 end

新文件test2.rb：

class PokerHand < Deck
  include Constants
  attr_reader :hand_type

      def initialize(the_cards)
    @cards = [ ]
    @hand_type = UNCLASSIFIED
  for card in the_cards
     @cards << card
  end
  end


# Determine hand type of PokerHand object.
def classify

  @cards.sort!



  # Straight
 def test_7
    arr7 = [Card.new(2, "C"), Card.new(3, "S"),
         Card.new(4, "H"), Card.new(5, "D"),
         Card.new(6, "S")]
    ph7 = PokerHand.new(arr7)
    ph7.classify
    assert_equal STRAIGHT , ph7.hand_type
  end

收到错误：

 TestClass#test_7:
NoMethodError: undefined method `rank' for 1:Fixnum
    PokerHand.rb:79:in `classify'
    test2.rb:76:in `test_7'

Answer 1

首先，您的PokerHand#initialize方法非常困惑。除了@cards之外，您永远不会将任何值分配给[ ]，这是一个空数组。因此，当您调用classify方法时，@cards仍为[ ]，因此@cards[0]，@cards[1]或@cards[x]为任何值x的{{1}}始终为nil。 PokerHand#initialize看起来应该更像这样：

def initialize(cards)
  @cards = cards
  @hand_type = UNCLASSIFIED
end

其次，你构成同花顺的逻辑是不正确的。目前，只有当手中的每张牌完全相同时才计算同花顺，例如，三张心中的五张副本。

单元测试错误未定义方法`rank＆＃39; 1：Fixnum

1 个答案: