我怎樣才能讓我的代碼正常工作？ 用戶輸入不適用於 if、elif 和 else

Question

if、elif 和 else 無法正確處理我的輸入。 我正在努力做到這一點，所以你必須通過所有三個問題才能進入我的假俱樂部。 但問題是，如果您錯誤地回答了前兩個問題而正確回答了第三個問題，您仍然可以進入俱樂部。 另外，這是學校的作業，我的老師說我錯過了一個標題，我的 if 語句不包含實際淘汰或接受潛在用戶的邏輯語句。 請幫忙。

def main():
    age = input("are you younger than 21?")
    game = input("what is the game of the day?")
    cool = input("what do you think about school?") 
    
    print("Welcome to Kidz Only.")
    print("are you cool enough to enter?")
    
    if( age == "yes"):
        print("question one is done.")
    if ( game == "super mario bros"):
        print("question two is through.")    
    if ( cool == "i have mixed feelings"):
        print("question three is complete.")
        print("You have passed the quiz. Welcome to Kidz Only!")
        
    else:
        print("Sorry, but you may not enter Kidz Only.")
        
main()

Answer 1

這樣做的原因是因為你說只有當( cool == "i have mixed feelings")然后顯示你被允許加入"cool kids" 。 您還可以使用and來縮短代碼。

def main():
    age = input("are you younger than 21?")
    game = input("what is the game of the day?")
    cool = input("what do you think about school?") 
    
    print("Welcome to Kidz Only.")
    print("are you cool enough to enter?")
    
    if( age == "yes") and (game == "super mario bros") and ( cool == "i have mixed feelings"):
        print("question three is complete.")
        print("You have passed the quiz. Welcome to Kidz Only!")
        
    else:
        print("Sorry, but you may not enter Kidz Only.")
        
main()

Answer 2

最后一個 if 與 else 語句相關聯，因此即使前兩個錯誤而最后一個正確，它也允許您輸入。 更好的邏輯是為每個要求設置條件。

def main():
    age = input("are you younger than 21?")
    game = input("what is the game of the day?")
    cool = input("what do you think about school?") 
    
    print("Welcome to Kidz Only.")
    print("are you cool enough to enter?")
    
    hasAge = False
    hasGame = False
    hasCool = False

    if( age == "yes"):
        hasAge = True
        print("question one is done.")
    if ( game == "super mario bros"):
        hasGame = True
        print("question two is through.")    
    if ( cool == "i have mixed feelings"):
        hasCool = True
        print("question three is complete.")
        
    if (hasAge and hasGame and hasCool):
        print("You have passed the quiz. Welcome to Kidz Only!")
    else:
        print("Sorry, but you may not enter Kidz Only.")
        
main()

雖然這會導致代碼更冗長，但它可以幫助您更好地查看邏輯