什么是 – gets是一个目录 – 错误消息
我收到这个奇怪的错误……
/Users/gideon/Documents/ca_ruby/rubytactoe/lib/player.rb:13:in `gets': Is a directory - spec (Errno::EISDIR) player_spec.rb：
require_relative '../spec_helper' # the universe is vast and infinite...it contains a game.... but no players describe "tic tac toe game" do context "the player class" do it "must have a human player X"do player = Player.new("X") STDOUT.should_receive(:puts).with("human move") # player.stub(:gets).and_return("") player.move_human("X") end it "must have a computer player O" do player = Player.new("O") STDOUT.should_receive(:puts).with("computer move") #what I expect to get back player.stub(:gets).and_return("") #what I am sending player.move_computer("O") #the actual call end end end
player.rb
# require_relative 'drawgrid' class Player attr_reader :boardpiece # i exist so game can read me def initialize(letter) @boardpiece = letter end def move_human(game) puts "human move..." @move = gets.chomp end def move_computer(game) puts "computer move..." # all possible third moves as 'O' (computer) @human_winmoves = { :wm01 => {:a1=>"X", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>"X", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "}, :wm02 => {:a1=>" ", :a2=>"X", :a3=>" ", :b1=>" ", :b2=>"X", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "}, :wm03 => {:a1=>" ", :a2=>" ", :a3=>"X", :b1=>" ", :b2=>"X", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "}, :wm04 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>"X", :b2=>"X", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "}, :wm05 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>"X", :b3=>"X", :c1=>" ", :c2=>" ", :c3=>" "}, :wm06 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>"X", :b3=>" ", :c1=>"X", :c2=>" ", :c3=>" "}, :wm07 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>"X", :b3=>" ", :c1=>" ", :c2=>"X", :c3=>" "}, :wm08 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>"X", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>"X"}, #check those corners :wm09 => {:a1=>"X", :a2=>"X", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "}, :wm10 => {:a1=>"X", :a2=>" ", :a3=>" ", :b1=>"X", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "}, :wm11 => {:a1=>" ", :a2=>"X", :a3=>"X", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "}, :wm12 => {:a1=>" ", :a2=>" ", :a3=>"X", :b1=>" ", :b2=>" ", :b3=>"X", :c1=>" ", :c2=>" ", :c3=>" "}, :wm13 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>"X", :c1=>" ", :c2=>" ", :c3=>"X"}, :wm14 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>"X", :c3=>"X"}, :wm15 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>"X", :c2=>"X", :c3=>" "}, :wm16 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>"X", :b2=>" ", :b3=>" ", :c1=>"X", :c2=>" ", :c3=>" "}, #check opposites :wm17 => {:a1=>"X", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>"X", :c2=>" ", :c3=>" "}, :wm18 => {:a1=>" ", :a2=>"X", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>"X", :c3=>" "}, :wm19 => {:a1=>" ", :a2=>" ", :a3=>"X", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>"X"}, :wm20 => {:a1=>"X", :a2=>" ", :a3=>"X", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "}, :wm21 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>"X", :b2=>" ", :b3=>"X", :c1=>" ", :c2=>" ", :c3=>" "}, :wm22 => {:a1=>"X", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>"X"}, :wm23 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>"X", :c2=>" ", :c3=>"X"}, :wm24 => {:a1=>" ", :a2=>" ", :a3=>"X", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>"X", :c2=>" ", :c3=>" "} } @ai_winmoves = { :wm01 => {:a1=>"O", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>"O", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "}, :wm02 => {:a1=>" ", :a2=>"O", :a3=>" ", :b1=>" ", :b2=>"O", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "}, :wm03 => {:a1=>" ", :a2=>" ", :a3=>"O", :b1=>" ", :b2=>"O", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "}, :wm04 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>"O", :b2=>"O", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "}, :wm05 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>"O", :b3=>"O", :c1=>" ", :c2=>" ", :c3=>" "}, :wm06 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>"O", :b3=>" ", :c1=>"O", :c2=>" ", :c3=>" "}, :wm07 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>"O", :b3=>" ", :c1=>" ", :c2=>"O", :c3=>" "}, :wm08 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>"O", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>"O"}, #check those corners :wm09 => {:a1=>"O", :a2=>"O", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "}, :wm10 => {:a1=>"O", :a2=>" ", :a3=>" ", :b1=>"O", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "}, :wm11 => {:a1=>" ", :a2=>"O", :a3=>"O", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "}, :wm12 => {:a1=>" ", :a2=>" ", :a3=>"O", :b1=>" ", :b2=>" ", :b3=>"O", :c1=>" ", :c2=>" ", :c3=>" "}, :wm13 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>"O", :c1=>" ", :c2=>" ", :c3=>"O"}, :wm14 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>"O", :c3=>"O"}, :wm15 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>"O", :c2=>"O", :c3=>" "}, :wm16 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>"O", :b2=>" ", :b3=>" ", :c1=>"O", :c2=>" ", :c3=>" "}, #check opposites :wm17 => {:a1=>"O", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>"O", :c2=>" ", :c3=>" "}, :wm18 => {:a1=>" ", :a2=>"O", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>"O", :c3=>" "}, :wm19 => {:a1=>" ", :a2=>" ", :a3=>"O", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>"O"}, :wm20 => {:a1=>"O", :a2=>" ", :a3=>"O", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "}, :wm21 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>"O", :b2=>" ", :b3=>"O", :c1=>" ", :c2=>" ", :c3=>" "}, :wm22 => {:a1=>"O", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>"O"}, :wm23 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>"O", :c2=>" ", :c3=>"O"}, :wm24 => {:a1=>" ", :a2=>" ", :a3=>"O", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>"O", :c2=>" ", :c3=>" "} } # match current answers located in @thegrid with possible @anskey array, iterate for each item @anskey={ :wm01=>"c3",:wm02=>"c2",:wm03=>"c1",:wm04=>"b3",:wm05=>"b1",:wm06=>"a3",:wm07=>"a2",:wm08=>"a1", :wm09=>"a3",:wm10=>"c1",:wm11=>"a1",:wm12=>"c3",:wm13=>"c3",:wm14=>"c1",:wm15=>"c3",:wm16=>"a1", :wm17=>"b1",:wm18=>"b2",:wm19=>"b3",:wm20=>"a2",:wm21=>"b2",:wm22=>"b2",:wm23=>"c2",:wm24=>"b2" } # # scan board for available move locations # select all values where value is O for thegrid and copy those into keys_with_o # compare result to ai_winmoves # keys_with_o = $thegrid.select{ |k, v| v == "O" }.keys # matching_moves = @ai_winmoves.select{ |k, v| v.select{ |k, v| v == "O" }.keys == keys_with_o } # puts "matching_moves: " # puts matching_moves # select all values where value is X for thegrid and copy those into keys_with_x keys_with_x = $thegrid.select{ |k, v| v == "X" }.keys block_moves = @ai_winmoves.select{ |k, v| v == "X" }.keys #DEBUG puts "keys_with_x: " #DEBUG puts keys_with_x.to_s # human_keys = v.select{ |k, v| v == "X"}.keys @intersection = block_moves & keys_with_x @thing = [] # initialize thing array @human_winmoves.each do |k,v| # for test - go threw each win moves. #get common elements between two arrays..recall from above that v contains a hash human_keys = v.select{ |k, v| v == "X"}.keys @intersection = human_keys & keys_with_x if $thegrid[:b2] == " " #AND center spot is empty ai_spot = "b2" puts "take center "+ai_spot @move = ai_spot.to_sym #must return this answer as a symbol return @move elsif @intersection.length >= 2 #DEBUG puts "where does a intersect b" #DEBUG puts @intersection.to_s #DEBUG puts "answer key:" #DEBUG puts k @thing << k # adds per iteration #DEBUG puts "@thing array" #DEBUG puts @thing.to_s # for test - find each intersection #DEBUG puts "@thing array first key" #DEBUG puts @thing.last.to_s #DEBUG puts "value" #DEBUG puts @anskey[@thing.last] #DEBUG puts "symbol?" answer = @anskey[@thing.last].to_sym #DEBUG puts answer.is_a?(Symbol) @move = answer # for test - at last intersection value found...return it as move value end end # END @human_winmoves.each do |k,v| return @move # had this guy in the wrong place end end
谁能指出我正确的方向？
当你调用gets.chomp你实际上指的是Kernel#gets ，它需要一个文件来读取。 如果要传递命令行参数，它们将被解释为Kernel#gets期望的这些输入文件。 如果其中一个args是目录路径，那么你将得到你提到的错误。
您想要使用IO#gets 。 这将按预期工作：
def move_human(game) puts "human move..." @move = STDIN.gets.chomp end
您可能正在将目录名称作为命令行参数。
内核＃从作为命令行参数给出的文件中读取。 您可能在命令行中提供目录名而不是文件名。
如果命令行中没有参数，则从STDIN读取。