Question

我正在尝试使用Python进行数学测验并且为此我想制作一个验证规则，这意味着如果用户放置的东西不是数字，它会再次询问它们，因为它是无效的。

我试图做到这一点，我想出的错误与我正常做的一样。有帮助吗？

if operator=="+":
   #this is a if statement which states that if the operator is
  #add then the answer should be num1 add num2 as the add function was     randomly
    #picked
    def inputNumber(message):
        while True:
            try:
                useranswer=int(input(actualquestion))
            except ValueError:
                print("This is not an integar!")
                continue
            else:
                 return usseranswer
                 break
actualanswer=num1 + num2 #this states that the answer is equal to the rando
#ly picked num1 add num2 as the operator is add.
if useranswer==actualanswer:
    #this if function states that if the users answer is equal to the real answer
    #the programme worked out before hand.
    score+=1 #if the answer is right you will add 1 to the score
    questions+= 1 #you will add 1 to the question also as 1 qw has been asked.

Answer 1

您的函数通常位于其他代码的顶部，不需要缩进：

def inputNumber(message):
    while True:
        try:
            return int(input(message))
        except ValueError:
            print("This is not an integer!")

result = inputNumber("Please enter a number: ")
print(result)

例如，以下内容可以满足您的需求：

Please enter a number: hello
This is not an integer!
Please enter a number: 123
123

这个Python验证代码有什么问题？

1 个答案: