python - python2/3中input()的区别

Question

这个问题已经有答案了:

What's the difference between `raw_input()` and `input()` in Python 3? [duplicate] (6 个回答)

已关闭 5 年前。

这是一个简单的数学程序，可以帮助我的 child 学习算术。

但是，IF语句在Python3中不起作用，但在Python2中起作用!

请问发生了什么变化(因为我似乎找不到答案)？

#import from library     
import random
import sys

#display the python version
print(sys.version)

#computer selects two random numbers between 1 and 10
x = random.randint(1,10)
y = random.randint(1,10)

#print x and y values
print("For x =", x, "and y =", y)

#calculate the correct answer to the sum of the two numbers and store it in the variable named "correct"
correct = x + y

#ask the user what is the sum of the two random numbers and provide a response
answer = input("What is the sum of x plus y ? ")
if answer == correct:
    print("well done")
else:
    print("Incorrect. The correct answer is", correct)

Answer 1

答案的数据类型是string，改成int后就可以正常工作了

import random
import sys

#display the python version
print(sys.version)

#computer selects two random numbers between 1 and 10
x = random.randint(1,10)
y = random.randint(1,10)

#print x and y values
print("For x =", x, "and y =", y)

#calculate the correct answer to the sum of the two numbers and store it in the variable named "correct"
correct = x + y

#ask the user what is the sum of the two random numbers and provide a response
answer = input("What is the sum of x plus y ? ")
if(int(answer)==correct):
    print("well done")
else:
    print("Incorrect. The correct answer is", correct)