Python多条件While循环嵌套if语句功能异常求助

Hey there! Let's break down why your elif branch isn't firing, and get your game working as intended.

What's Going Wrong? #

You've got two key issues here:

1. Random number gets regenerated every guess: Your getUserGuess() function generates a new random number every time it's called. That means when the user makes a second guess, they're trying to match a brand-new number instead of the original one from their first attempt.
2. Guess values aren't updated in the loop: When you call getUserGuess() inside the else block, you don't save the new guess (or new random number) to your r and g variables. So the loop keeps checking against the first guess and first random number—making the elif condition impossible to hit.

Fixed Code #

Here's the revised version that addresses both problems, plus some small cleanups for readability:

import random  # Move import to the top of the file (best practice)

def getUserName():
    print('Welcome to the Superhero Name Game v 2.0')
    print('Copyright \N{COPYRIGHT SIGN}2018. Alex Fraser')
    userName = input('Please enter the superhero name you wish to use. ')
    return userName

def getUserGuess():
    # Only get the user's guess here—random number is generated once outside
    userGuess = int(input('Please enter a number between 1 and 10. '))
    return userGuess

def superName(n, target_num):
    guessCount = 1
    while guessCount <= 2:  # Adjust loop condition to run exactly twice
        user_guess = getUserGuess()
        if user_guess == target_num and guessCount == 1:
            print(f'Congrats! You can use your chosen name. Your superhero name is {n}')
            return
        elif user_guess == target_num and guessCount == 2:
            print('Your superhero name is Captain Marvel.')
            return
        else:
            print(f"Wrong guess! You have {2 - guessCount} attempt(s) left.")
            guessCount += 1
    
    # If we exit the loop, both guesses were wrong
    print('All your guesses were incorrect. Sorry you do not have super powers')
    print(f'The number you were looking for was {target_num}')

# Main game flow
n = getUserName()
target_number = random.randint(1, 10)  # Generate random number ONCE here
superName(n, target_number)

Key Changes Explained: #

• Moved the random number generation: We now create the target number once at the start of the game, so the user is guessing the same number both times.
• Split getUserGuess() to only handle input: This separates concerns and avoids regenerating random numbers accidentally.
• Updated the loop logic: We now get the user's guess at the start of each loop iteration, and update the guessCount correctly when a wrong guess is made.
• Fixed variable scoping: No more stale r and g variables—we use target_num and user_guess which stay updated throughout the function.

This should make your elif branch trigger correctly when the user guesses right on their second try!

内容的提问来源于stack exchange，提问作者Alexander Fraser