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Question

我需要在while循环中添加验证。

然而，当我使用此验证时，它不起作用，而只是提出错误消息，说我没有使用基数10 /整数，当我希望它提出验证错误消息并让用户再试一次。

我不知道是否在while循环中使用它会使我使用的验证有所不同，是吗？

我还需要将此“def inputNumber（message）：”更改为我的输入存储的内容吗？

这个“userInput = int（输入（消息））”到我输入的内容是什么？

import time 
import random 
question = 0 
score = 0 
name = input("What is your full name?") 
print ("Hello " + name, "welcome to The Arithmetic Quiz. Use integers to enter the answer!") 
time.sleep(2) 
operands1 = list(range(2, 12)) 
operators = ["+","-","x"] 
operands2 = list(range(2, 12)) 

while question < 10:  
    operand1 = random.choice(operands1)
    operand2 = random.choice(operands2) 
    operator = random.choice(operators) 
    def inputNumber(message):
        while True:
            try:
               userInput = int(input(message))       
            except ValueError:
                print("Not an integer! Try again.")
                continue
            else:
                return userInput 
            break
    user_answer =int(input('{} {} {} = '.format(operand1, operator, operand2)))

Answer 1

我怀疑你是否希望在while循环中拥有你的函数定义，就像你在这里做的那样：

while question < 10:
    ... 
    def inputNumber(message): 
        ...

相反，您可以在循环外部定义函数，并在其他地方循环调用x次。 E.g。

def inputNumber(message): 
    ...
    return userInput

while question < 10:
    # pick random numbers/operators
    ...
    # call inputNumber() with numbers/operators as message. Return user_answer
    user_answer = int(inputNumber('{} {} {} = '.format(operand1, operator, operand2)))
    # check if the answer is correct
    ...
    # increment question so it doesn't run infinitely
    question += 1

Answer 2

@ user6104134已经解决了这个问题;但是，我想为其他有类似问题的人提供答案。

尝试此解决方案

import random
import time

question = 0
score = 0


def inputnumber(prompt):
    while True:
        response = raw_input(prompt)
        try:
            if isinstance(response, int):
                return int(response)
            else:
                print "Not an integer! Try again."
        except ValueError:
            print "Not an integer! Try again."


name = raw_input("What is your full name? ")
print ("Hello " + name, "welcome to The Arithmetic Quiz. Use integers to enter the answer!")
time.sleep(2)
operands1 = list(range(2, 12))
operators = ["+", "-", "x"]
operands2 = list(range(2, 12))

while question < 10:
    operand1 = random.choice(operands1)
    operand2 = random.choice(operands2)
    operator = random.choice(operators)
    user_answer = int(inputnumber('{} {} {} = '.format(operand1, operator, operand2)))
    question += 1

问题

首先，您应该在脚本之外声明函数定义，并通过标识符＆＃39; inputNumber（）＆＃39;

调用函数

另请注意Try / Except和PEP 8 Style Guide兼容格式的细微变化。

整数验证Python

2 个答案:

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问题