数学游戏不起作用 [英] math game not working

问题描述

我为正在制作的程序制作了一个函数，这是一个数学游戏，您必须在其中输入答案，如果答案正确，您将获胜.我以为游戏很简单，但是由于某种原因，每当您输入答案时，即使答案正确，程序也会说错了.

I made a function for a program I am making, It's a math game where you have to input an answer, and if the answer is right you win. I thought the game was simple, but for some reason, whenever you input the answer, the program says it's wrong, even if the answer is right.

def gameChoice():
    print("what game do you want to play? A math game")
    game_choice = input(">>")
    if game_choice == 'math game':
        number1 = random.randint(1, 30)
        number2 = random.randint(1, 30)
        answer = (number1 + number2)
        print("%d + %d = %d" %(number1, number2, answer))
        player_answer = input(">> ")
        if player_answer == answer:
            print("congrats, you got it right")

        else:
            print("sorry, try again")

推荐答案

您可以使用literal_eval(来自ast内置函数)来代替int.如果将来要支持浮点数，则可以使用浮点数或整数.您还需要一些异常处理，以防用户输入字符串或仅按Enter键.

Instead of int, you could use literal_eval (from the ast built-in). That will allow either a float or an int in case you want to support floats in the future. You'd also want some exception handling in case the user enters a string or just hits Enter.

然后，您需要循环播放，直到用户正确使用为止.一种可能的解决方法是:

Then, you'll want to loop until the user gets it right. One possible fix would be:

import random
from ast import literal_eval

def gameChoice():
    print("what game do you want to play? A math game")
    game_choice = input(">>")
    if game_choice == 'math game':
        number1 = random.randint(1, 30)
        number2 = random.randint(1, 30)
        answer = (number1 + number2)

        while True:
            print("%d + %d = %d" % (number1, number2, answer))
            try:
                player_answer = literal_eval(input(">> "))
            except ValueError:
                print('Please enter a number for the answer')
            except SyntaxError:
                print('Please enter an answer')
            else:
                if player_answer == answer:
                    break
                else:
                    print("sorry, try again")

        print("congrats, you got it right")

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