Python问答游戏代码优化求助：如何让代码更整洁可读并运用内置函数

Hey there! Nice start on your quiz game—let's clean this up and make use of those handy built-in functions you want to learn. I'll walk through key improvements and show you a revised version with explanations:

Key Improvements & Built-in Functions Used #

• enumerate(): Tracks question numbers automatically without manually incrementing a counter
• zip(): Pairs questions, answers, and options together neatly
• dict.values(): Gets all correct answers in one go
• zip() again: Compares user guesses to correct answers side-by-side in the score display

Revised Code #

def new_game():
    guesses = []
    correct_guesses = 0

    # Use enumerate to get question number, and zip to pair questions/answers with options
    for question_num, ((question, correct_answer), options_list) in enumerate(zip(questions.items(), options), start=1):
        print('---------------------------------------------------------')
        print(f"Question {question_num}: {question}")
        for option in options_list:
            print(option)
        
        guess = input("Enter (A, B, C or D): ").upper()
        guesses.append(guess)
        
        # Check answer and update score
        is_correct = check_answers(correct_answer, guess)
        correct_guesses += is_correct

    display_score(correct_guesses, guesses)

def check_answers(correct_answer, user_guess):
    if correct_answer == user_guess:
        print("CORRECT")
        return 1
    else:
        print("WRONG")
        return 0    

def display_score(correct_guesses, user_guesses):
    print("\n-----------------------------------------")
    print("RESULT:")
    print("-----------------------------------------")
    
    # Get all correct answers once with dict.values()
    correct_answers = list(questions.values())
    
    # Use zip to show guesses vs correct answers in one loop
    print("Answers vs Your Guesses:")
    for ans, guess in zip(correct_answers, user_guesses):
        print(f"Correct: {ans} | Your Guess: {guess}")
    
    # Calculate and display percentage score
    score = int((correct_guesses / len(user_guesses)) * 100)
    print(f"\nYour Score: {score}%")

def play_again():
    play = input("\nDo you wanna play again (y/n)? ").lower().strip()
    # Fix: properly return False instead of just having it in the else block
    return play == "y"

# Game data
questions = {
    "Who created Python? ": "B",
    "From where is the name 'Python' originating? ": "C",
    "What year did World War II start? ": "A",
    "What was Usain Bolt's 100m time in 2009? ": "C"
}

options = [
    ['A. Bjarne Stroustrup', 'B. Guido Van Rossum', 'C. Alexander Cobol', 'D. Blaise Pascal'],
    ['A. From the python snake', 'B. From his mother’s heart disease', 'C. From music band Monty Python', 'D. None'],
    ["A. 1939", "B. 1969", "C. 1200 A.D.", 'D. 2001'],
    ['A. 9.2', 'B. 7.67', 'C. 9.58', 'D. 10.05']
]

# Start the game
new_game()
while play_again():
    new_game()

print("\nBye!")

Let's Break Down the Changes #

1. Simplified Question Loop:

   • We use zip(questions.items(), options) to pair each question-answer pair with its corresponding options list.
   • enumerate(..., start=1) gives us the question number directly (starting at 1 instead of 0), so we don't need to track question_num manually.

2. Cleaner Score Display:

   • questions.values() grabs all correct answers in one line instead of looping through the dict keys.
   • zip(correct_answers, user_guesses) lets us print each correct answer next to the user's guess in a single loop—no more separate loops!

3. Fixed Play Again Function:

   • The original function didn't return False properly; now it returns a boolean directly based on the user's input.
   • Added .strip() to handle accidental spaces in the input.

4. Readability Tweaks:

   • Renamed variables for consistency (e.g., user_guesses instead of guess in display_score).
   • Used f-strings for clearer print statements (like showing the question number).

This version is more efficient, easier to read, and makes heavy use of those useful built-in functions you wanted to learn. Let me know if you have any questions about how any part works!

备注：内容来源于stack exchange，提问作者teddy