我的输入不等于答案吗？

Question

从Unity
JS切换到Python稍有一些，关于这为什么行不通的一些细微之处使我难以理解。我最好的猜测是变量guess实际上是一个字符串，所以字符串5与整数5不同吗？这是正在发生的事情吗，或者如何解决这个问题。

import random
import operator

ops = {
    '+':operator.add,
    '-':operator.sub
}
def generateQuestion():
    x = random.randint(1, 10)
    y = random.randint(1, 10)
    op = random.choice(list(ops.keys()))
    a = ops.get(op)(x,y)
    print("What is {} {} {}?\n".format(x, op, y))
    return a

def askQuestion(a):
    guess = input("")
    if guess == a:
        print("Correct!")
    else:
        print("Wrong, the answer is",a)

askQuestion(generateQuestion())

Answer 1

我假设您正在使用python3。

代码的唯一问题是，您从中获取的值input()是字符串，而不是整数。因此，您需要进行转换。

string_input = input('Question?')
try:
    integer_input = int(string_input)
except ValueError:
    print('Please enter a valid number')

现在您将输入作为整数，可以将其与 a

编辑代码：

import random
import operator

ops = {
    '+':operator.add,
    '-':operator.sub
}
def generateQuestion():
    x = random.randint(1, 10)
    y = random.randint(1, 10)
    op = random.choice(list(ops.keys()))
    a = ops.get(op)(x,y)
    print("What is {} {} {}?\n".format(x, op, y))
    return a

def askQuestion(a):
    # you get the user input, it will be a string. eg: "5"
    guess = input("")
    # now you need to get the integer
    # the user can input everything but we cant convert everything to an integer so we use a try/except
    try:
        integer_input = int(guess)
    except ValueError:
        # if the user input was "this is a text" it would not be a valid number so the exception part is executed
        print('Please enter a valid number')
        # if the code in a function comes to a return it will end the function
        return
    if integer_input == a:
        print("Correct!")
    else:
        print("Wrong, the answer is",a)

askQuestion(generateQuestion())