python 乘法测验语法无效

Question

我有这个 python 乘法测验。

import random

score = 0
continue = True
while continue:
    a = random.randint(1, 12)
    b = random.randint(1, 12)
    product = a * b
    guess = int(input('What is '+str(a)+' times '+str(b)+'? (press "q" to quit):'))
    if guess == 'q':
        continue = False
    if guess != product:
        print('Sorry, this is wrong. It should be '+str(product)+'.')
        continue = False
    if guess == product:
        print('Good job. You got it right.')

print('Thanks for playing! You scored '+str(score)+'.')

当我在 continue = True.

行尝试运行时，它一直说 SyntaxError: invalid syntax

在添加 continue 查询之前，它运行良好：

import random

score = 0
while True:
    a = random.randint(1, 12)
    b = random.randint(1, 12)
    product = a * b
    guess = int(input('What is '+str(a)+' times '+str(b)+'? (press "q" to quit):'))
    if guess == 'q':
        break
    if guess != product:
        print('Sorry, this is wrong. It should be '+str(product)+'.')
    if guess == product:
        print('Good job. You got it right.')

print('Thanks for playing! You scored '+str(score)+'.')

我不确定 continue = True 这行有什么问题。据我所知，这是将 True 分配给变量 continue。请帮忙！

Answer 1

continue 是一个 python 关键字，例如 if、else、True、break 等，因此您可以给它赋值。如果您想使用此名称，请尝试 continue_（来自 pep8）。

还有 continue_ 修复输入 'q' 会导致异常，因为 python 尝试执行 int('q')，但这是行不通的。

您没有在函数中增加分数，因此如果正确添加 score += 1 会有所帮助。

import random


score = 0
continue_ = True
while continue_:
    a = random.randint(1, 12)
    b = random.randint(1, 12)
    product = a * b
    guess = input('What is '+str(a)+' times '+str(b)+'? (press "q" to quit):')
    if guess == 'q':
        break
    if int(guess) != product:
        print('Sorry, this is wrong. It should be '+str(product)+'.')
        continue_ = False
    if int(guess) == product:
        print('Good job. You got it right.')
        score += 1

print('Thanks for playing! You scored '+str(score)+'.')

例如会输出

What is 6 times 7? (press "q" to quit):42
Good job. You got it right.
What is 10 times 7? (press "q" to quit):70
Good job. You got it right.
What is 8 times 7? (press "q" to quit):56
Good job. You got it right.
What is 9 times 10? (press "q" to quit):90
Good job. You got it right.
What is 2 times 12? (press "q" to quit):24
Good job. You got it right.
What is 12 times 3? (press "q" to quit):36
Good job. You got it right.
What is 11 times 6? (press "q" to quit):66
Good job. You got it right.
What is 11 times 7? (press "q" to quit):q
Thanks for playing! You scored 8.

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