简单的 Python 3 加法游戏

Question

我正在用 Python 编写一个简单的数学游戏，让用户输入一个加法问题，直到他们得到正确答案

这是我试过的代码：

import random


def problem():
    number_one = random.randrange(1, 21)
    number_two = random.randrange(1, 21)
    problem = str(number_one) + " + " + str(number_two)
    solution = number_one + number_two
    user_solution = get_user_solution(problem)

    while user_solution != solution:
        get_user_solution(problem)
        
    if user_solution == solution:
        print('You are correct')
        
        
def get_user_solution(problem):
    print("Enter your answer")
    print(problem, end="")
    result = int(input(" = "))
    return result

problem()

如果用户立即输入正确答案，或者当用户输入错误答案时，它似乎有效，但如果用户首先输入错误答案，然后输入正确答案，则如下所示

Answer 1

因此，在您的 while 循环中，当您调用函数 get_user_problem(problem) 时，您不会将 user_solution 更新为用户输入的答案。 您不断检查的答案是用户第一次输入任何内容，因为这是您存储在 user_solution 中的内容，如果这不是正确答案，则会陷入无限循环。 此外，您不需要最后一个条件，因为它只会在您的用户输入正确答案时退出 while 循环，因此您不必再次检查！

这是您更正的代码：

import random


def problem():
    number_one = random.randrange(1, 21)
    number_two = random.randrange(1, 21)
    problem = str(number_one) + " + " + str(number_two)
    solution = number_one + number_two
    user_solution = get_user_solution(problem)

    while user_solution != solution:
        user_solution = get_user_solution(problem)
        #you could add some feedback here and say "incorrect answer"
        
    print("You are correct!")
        
        
def get_user_solution(problem):
    print("Enter your answer")
    print(problem, end="")
    result = int(input(" = "))
    return result

"""
you could also house this call in a if __name__ == '__main__': conditional, look it up, may help in the future!
"""
problem()

让我知道这个是否奏效！

Answer 2

您缺少对while循环内变量的赋值：

import random

def problem():
    number_one = random.randrange(1, 21)
    number_two = random.randrange(1, 21)
    problem = str(number_one) + " + " + str(number_two)
    solution = number_one + number_two
    user_solution = get_user_solution(problem)

    while user_solution != solution:
        user_solution = get_user_solution(problem)
        
    if user_solution == solution:
        print('You are correct')
               
def get_user_solution(problem):
    print("Enter your answer")
    print(problem, end="")
    result = int(input(" = "))
    return result

problem()

Answer 3

import random


def problem():
    number_one = random.randrange(1, 21)
    number_two = random.randrange(1, 21)
    problem = str(number_one) + " + " + str(number_two)
    solution = number_one + number_two
    user_solution = get_user_solution(problem)
    
    while True:
        if get_user_solution(problem) == solution:
            print('You are correct')
            break
        
        
def get_user_solution(problem):
    print("Enter your answer")
    print(problem, end="")
    result = int(input(" = "))
    return result

problem()

试试这个。

Answer 4

您想更新 while 循环内的 user_solution 值。

import random
    
 
def problem():
    number_one = random.randrange(1, 21)
    number_two = random.randrange(1, 21)
    problem = str(number_one) + " + " + str(number_two)
    solution = number_one + number_two
    user_solution = get_user_solution(problem)

    while user_solution != solution:
        user_solution = get_user_solution(problem)#you want to update the value of user_solution
        
    #if user_solution == solution: that is useless because only if while loop is completed,comes to this step
    print('You are correct')
        
        
def get_user_solution(problem):
    print("Enter your answer")
    print(problem, end="")
    result = int(input(" = "))
    return result

problem()