Question

所以，这是我的代码：

import random # Imports the random module
score = 0  
operator = ['*','+','-']
for i in range (1,11):
    print('This is question ',str(i))
    NumOne = random.randint(1,12)
    NumTwo = random.randint(1,12)
    Op = random.choice(operator)
    Answer = eval(str(NumOne) + Op + str(NumTwo))
    while True:
        try:
            userAnswer = int(input('What is the answer to {} {} {}'.format(NumOne,Op,NumTwo)))
            continue
        except ValueError:
            print('That isn\'t a valid input')
    if userAnswer == Answer:
        print('That is the correct answer. You have scored a point')
        score +=1
    else: print('That is the incorrect answer')
print('You have scored',score,'out of 10.\nThat is equal to ',(score/10)*100)

基本上，当我运行它时，它给了我一个问题。我回答了这个问题，然后又问了我同样的问题。

所以：

1 + 1是什么？然后我输入2 并再次询问1 + 1，这不仅仅是随机数的机会，而是重复几次。

对于如何提出不同的问题，我们已经尝试了多种解决方案，感谢您的帮助。

Answer 1

这有望澄清有关while循环的一些内容。

给出一个while循环：

while x:
    y()

函数y（）将被无限调用，直到x为False。

关键字中断并按以下方式工作：

while x:
    y()
    if z:
        break

当x变为False或z变为True时，将结束，以先发生者为准。这相当于：

while x and not z:
    y()

Answer 2

你给了一个无限循环。你键入While True，它要求你回答这些值永远不会改变，因为它永远不会出现你应该做的事情而是

import random # Imports the random module
score = 0  
go = False
operator = ['*','+','-']
for i in range (1,11):
    go = False
    print('This is question ',str(i))
    NumOne = random.randint(1,12)
    NumTwo = random.randint(1,12)
    Op = random.choice(operator)
    Answer = eval(str(NumOne) + Op + str(NumTwo))
    while go != True:
        try:
            userAnswer = int(input('What is the answer to {} {} {}'.format(NumOne,Op,NumTwo)))
            go = True
        except ValueError:
            print('That isn\'t a valid input')
        if userAnswer == Answer:
            print('That is the correct answer. You have scored a point')
            score +=1
        else: 
            print('That is the incorrect answer')
print('You have scored',score,'out of 10.\nThat is equal to ',(score/10)*100)

这有什么不同，它现在要求一个有效的答案，如果它得到一个，它继续下一个问题。希望这有帮助！

麻烦使用try和except

2 个答案: