Python While循环,也使用模和继续命令

Cha*_*ins 1 python continue modulo while-loop

尝试完成要求我执行以下任务的任务:

“编写一个while循环,该循环计算1到20(含)之间的整数之和,不包括那些被3整除的整数。(提示:您会发现模运算符(%)和continue语句很方便。)

我尝试自己构造代码,但是对代码的评估超时。我猜我的语法不正确并导致无限循环

    total, x = 0, 1
    while x >=1 and x <= 20:
        if x%3==0:
            continue
        if x%3 != 0:
            print(x)
            x+=1
            total+=1
    print(total)
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预期的答案应该是:

20 19 17 16 14 13 11 10 8 7 5 4 2 1

但是我只是收到“超时”错误

***最新::

尝试这样做:

total, x = 0, 1
while x>=1 and x<=20:
    if x%3 == 0:
        x+=1
        continue
    if x%3 != 0:
       print(x)
       x+=1
       total=+1
print(total)
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收到此::

Traceback (most recent call last):
   File "/usr/src/app/test_methods.py", line 23, in test
    self.assertEqual(self._output(), "147\n")
AssertionError:     '1\n2\n4\n5\n7\n8\n10\n11\n13\n14\n16\n17\n19\n20\n1\n' != '147\n'
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-1-2-4-5-7-8-10-11-13-14 + 147吗?+-16-17-19-19-1

Sup*_*dar 5

您不会x在第一个if语句内递增,因此它停留在该值上并永远循环。你可以试试看

total, x = 0, 1
while x >=1 and x <= 20:
    if x%3==0:
        x+=1  # incrementing x here
        continue
    elif x%3 != 0:  # using an else statement here would be recommended
        print(x)
        x+=1
        total+=x  # we are summing up all x's here
print(total)
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或者,您可以x在if语句之外增加。您也可以使用range()。在这里,我们只是忽略了x那些可被整除的东西3

total, x = 0, 1
for x in range(1, 21):
    if x%3 != 0:
        print(x)
        x+=1
        total+=x
print(total)
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