Question

好吧，所以我想跟踪玩家有多少问题，但是当我说'得分= +1'时，它不会给分数增加任何东西。我该怎么做呢？这是我的代码：

    score = 0

print('This is a 10 question quiz. Please do not use any capitol letters when answeringquestions'
)

print('1. Can elephants jump? (yes or no)')
answer_1 = input()
if answer_1 == 'yes':
    print('Wrong! Elephants cannot jump.')
if answer_1 == 'no':
    print('Correct! Elephants cannot jump!')
    score = +1

print('(true or false) Karoake means \"Empty Orchestra\" In Japanese')
answer_2 = input()
if answer_2 == 'true':
    print('Correct! Karoake does in fact mean \"Empty orchestra\" in Japanese')
    score = +1
if answer_2 == 'false':
    print('Wrong! Karoake does in fact mean \"Empty orchestra\" in Japanese')


print('Solve the math problem: What is the square root of 64?')
answer_3 = input()
if answer_3 == 8:
    print('Good job! The square root of 64 is 8!')
    score = +1
else:
    print('Incorrect! the square root of 64 is 8.')

print(score)

Answer 1

score += 1

或

score = score + 1

更详细的答案：

Behaviour of increment and decrement operators in Python

Answer 2

你应该让score += 1操作员反转。

当你说score = +1时，你说的是将得分设为正值。

Answer 3

您所写的内容score = +1只是将'score'变量一遍又一遍地设置为正1（+1）。

正如samrap已经说过的那样，你真的想写：

score += 1 - 将变量“得分”设置为高于
score = score + 1 或 score = (score + 1) - 将变量设置为上一个值加1（括号，虽然不是很像python，但有助于增加清晰度）

如何增加变量数值。

3 个答案: