未初始化的常量DrvierExam :: Console_Screen（NameError） - 需要幫助代碼

Question

好吧，所以我創建了代碼，當我嘗試在Eclipse中運行腳本時，出現此錯誤 未初始化的常量DrvierExam :: Console_Screen（NameError）。 senerio爲創建腳本是學生必須採取20個問題，他們將不得不獲得75％通過這是15個問題。類名稱需要有數組的正確答案，用於收集學生答案的問題和數組。

我想我在創建兩個數組的寫道上，但不知道，並在開始時得到錯誤。

$ class Screen 
    def cls 
    puts ("\n" * 10) 
    puts "\a" 
    end 

def pause 

end 
end 

class DrvierExam 
    def display_greeting  # This is a method 
    Console_Screen.cls  #Clears the Screen 

    print "\t\t Welcome To Georgia Department Driver Services" + "\n\nPress Enter to Continue" 

Console_Screen.pause 

末

def display_instructions 
Console_Screen.cls 
puts "INSTRUCTIONS:\n\n" 

puts "You are starting DMV exam for your drivers licence" 
puts "You will be presented with multiple choice question," 
puts "Please type the letter of the correct choice" 
puts "Grades will be shown at the end" 
puts "Good Luck For the First Licence" 
print "Press Enter to Continue" 

Console_Screen.pause 
end 

def CorrectAnswer 
test = %w[1B 2D 3A 4A 5C 6B 7B 8A 9C 10D 11B 12C 13D 14D 15D 16C 17C 18B 19D 20A] #Array for real anwer 

末

def disp_q(question, q_A, q_B, q_C, q_D, answer) 

loop do 

Console_Screen.cls  

puts question + "\n\n" 
puts q_A 
puts q_B 
puts q_C 
puts q_D 

print "Type the letter representing your answer: " 
answer = []             
    reply = STDIN.gets 
    reply.chop! 

if answer == reply then 
    $noRight +=1 
end 

if reply == "a" or reply == "b" or reply == "c" or reply == "d" then 
    break 

    end 
    end 
end 

Answer 1

你指的是你的 「屏幕」 類爲 「Console_Screen」。將所有引用更改爲屏幕，並且它應該可以正常工作。